Jetmaster INSET STOVE MKIII 16i Owner's manual

JETMASTER INSET STOVE MKIII
16i, 18i, 50i, 60i, 70i, 60i Low, 70i Low
Installation, Operating and Servicing Instructions
Please leave these instructions with the customer

CONTENTS
TECHNICAL SPECIFICATIONS............................................................................................................................................................... 5
INSTALLATION INSTRUCTIONS
Introduction ............................................................................................................................................................................................. 6
Dimensions................................................................................................................................................................................................ 6
Regulations ............................................................................................................................................................................................... 6
The Clean Air Act 1993 and SmokeControl Areas.................................................................................................................................... 6
Air Control Stop (Low Rate Stop) .............................................................................................................................................................. 7
Health and Safety Precautions.................................................................................................................................................................. 7
Important Points to Note before Starting Installation. ................................................................................................................................ 7
Convection Inlet......................................................................................................................................................................................... 7
Paint.......................................................................................................................................................................................................... 7
Modular Construction ................................................................................................................................................................................ 7
Fire Cement............................................................................................................................................................................................... 7
Asbestos.................................................................................................................................................................................................... 7
Metal Parts................................................................................................................................................................................................ 7
Installation Requirements....................................................................................................................................................................... 7
Unpacking ................................................................................................................................................................................................. 8
Chimneys and Flues..................................................................................................................................................................................9
Soundness of Flue.....................................................................................................................................................................................9
Flue Size / Dimensions.............................................................................................................................................................................. 9
Use of Existing Chimneys..........................................................................................................................................................................9
Termination.......................................................................................................................................................................................................... 9
Flue Outlet................................................................................................................................................................................................. 9
Bends........................................................................................................................................................................................................9
Sweeping...................................................................................................................................................................................................9
Installation Requirements....................................................................................................................................................................... 9
If connecting to a stainless-steel liner........................................................................................................................................................9
If connecting to an existing masonry flue..................................................................................................................................................10
HEARTHS ................................................................................................................................................................................................10
COMBUSTIBLE MATERIALS ..................................................................................................................................................................11
Protection of Heat.....................................................................................................................................................................................11
Fire Surrounds and Shelves.................................................................................................................................................................... 11
Pictures and TV’s .................................................................................................................................................................................... 11
Plastering ................................................................................................................................................................................................ 11
Air Supply................................................................................................................................................................................................ 11
Air Supplied from Room .......................................................................................................................................................................... 12
Air Supplied from External Source........................................................................................................................................................... 12
Fitting the Fire........................................................................................................................................................................................ 13
Site Preparation for Fitting....................................................................................................................................................................... 13
Builders Opening..................................................................................................................................................................................... 13
Inglenook Installations or freestanding.................................................................................................................................................... 13
Appliance Preparation............................................................................................................................................................................. 14
Door Removal/Replacement ................................................................................................................................................................... 14
Air Control Stop (Low Rate Stop) ............................................................................................................................................................ 15
Log Retainer Removal and Replacement................................................................................................................................................ 15
TertiaryAir Tubes.............................................................................................................................................................................................. 15
Baffle Boards........................................................................................................................................................................................... 15
TertiaryAir Tube and Lower Baffle Removal and Replacement............................................................................................................... 16
Upper Baffle Removal and Replacement ................................................................................................................................................ 17
Removing and Replacing Ash Pan.......................................................................................................................................................... 17
Bottom Grate Removal and Replacement............................................................................................................................................... 17
Internal Board Removal and Replacement (Rear and Sides).................................................................................................................. 17
Rear Board Removal and Replacement.................................................................................................................................................. 17
Side Board Removal and Replacement................................................................................................................................................... 18
Flue Adaptor Removal (If fitted to fire)..................................................................................................................................................... 18
Inner Firebox “Engine” Removal.............................................................................................................................................................. 18
Fitting the Firebox.................................................................................................................................................................................... 18
Outer Firebox Fitting................................................................................................................................................................................ 18
Infilling above the Outer Box ................................................................................................................................................................... 19
Fitting Hot Air Ducts (Optional Extra)....................................................................................................................................................... 19
External Air Supply Fitting ....................................................................................................................................................................... 20
Inner Firebox “Engine” Fitting.................................................................................................................................................................. 20
Refitting the Internal Components........................................................................................................................................................... 21
Fitting the Basket Grate (Optional Extra 60i and 70i) .............................................................................................................................. 21
Fitting the Frame ..................................................................................................................................................................................... 21
Commissioning ..................................................................................................................................................................................... 22
After Installation Is Complete................................................................................................................................................................... 22
Door TensionAdjustment......................................................................................................................................................................... 22
Air Supply................................................................................................................................................................................................ 22
Smoke Draw Test........................................................................................................................................................................................................23
Trimming the Upper and Lower Baffles................................................................................................................................................... 23

Notice Plate............................................................................................................................................................................................. 23
Carbon Monoxide (CO) Alarm ................................................................................................................................................................. 23
Cleaning Up............................................................................................................................................................................................. 23
Lighting after installation.......................................................................................................................................................................... 24
Chimney Sweeping ................................................................................................................................................................................. 24
Handing Over.......................................................................................................................................................................................... 24
Data Plate................................................................................................................................................................................................ 24
USERS INSTRUCTIONS
General ................................................................................................................................................................................................... 25
The Clean Air Act 1993 and SmokeControl Areas.................................................................................................................................. 25
Air Control Stop (Low Rate Stop)............................................................................................................................................................ 26
Health and Safety Precautions................................................................................................................................................................ 26
Safety Information................................................................................................................................................................................. 26
Carbon Monoxide (CO) Alarm ................................................................................................................................................................. 26
Extractor Fans......................................................................................................................................................................................... 26
Metal Parts.............................................................................................................................................................................................. 26
Chimney Sweeping ................................................................................................................................................................................. 26
Chimney Fires......................................................................................................................................................................................... 26
How Do I Know When I Have AChimney Fire?....................................................................................................................................... 26
What Should I Do If I Have AChimney Fire?........................................................................................................................................... 26
Carbon Monoxide Alarm.......................................................................................................................................................................... 28
COMBUSTIBLE MATERIALS ................................................................................................................................................................. 28
Protection of Heat.................................................................................................................................................................................... 28
Fire Surrounds and Shelves.................................................................................................................................................................... 28
Pictures and TV’s .................................................................................................................................................................................... 28
OPERATING INSTRUCTIONS
Lighting after Installation.......................................................................................................................................................................... 28
Operating Tool........................................................................................................................................................................................................................29
Door Operation........................................................................................................................................................................................ 29
Wood Burning and Basket Grates........................................................................................................................................................... 29
Wood Burning.......................................................................................................................................................................................... 29
Ash Removal........................................................................................................................................................................................... 29
Lighting with Wood.................................................................................................................................................................................. 29
Operation with door left open .................................................................................................................................................................. 29
Refuelling with Wood............................................................................................................................................................................... 29
Refuelling on to a low fire bed................................................................................................................................................................. 30
Basket Grates.......................................................................................................................................................................................... 30
Lighting with Basket Grate....................................................................................................................................................................... 30
Use of the Air Supply Control .................................................................................................................................................................. 30
Fires Approved for use within a Smoke Control Area .............................................................................................................................. 30
Seasonal Use.......................................................................................................................................................................................... 31
Fuels ....................................................................................................................................................................................................... 31
Fuel Overloading..................................................................................................................................................................................... 31
Recommended Fuel Types ..................................................................................................................................................................... 31
Wood....................................................................................................................................................................................................... 31
Smokeless Fuel....................................................................................................................................................................................... 31
Cleaning and Maintenance...................................................................................................................................................................... 32
SERVICING INSTRUCTIONS
Servicing.................................................................................................................................................................................................. 32
Carbon Monoxide (CO) Alarm ................................................................................................................................................................. 32
Extractor Fans......................................................................................................................................................................................... 32
Metal Parts.............................................................................................................................................................................................. 32
Chimney Sweeping ................................................................................................................................................................................. 32
Checks .................................................................................................................................................................................................... 32
Air Control Lever ..................................................................................................................................................................................... 32
Smoke Draw Test...................................................................................................................................................................................................................32
Removing the Door ................................................................................................................................................................................. 33
Removing the Log Retainer..................................................................................................................................................................... 33
TertiaryAir Tube, Lower and Upper BaffleBoard Cleaning...................................................................................................................... 33
Bottom Grate Removal............................................................................................................................................................................ 33
Internal Board Removal........................................................................................................................................................................... 33
Door Glass Replacement and Seal Replacement................................................................................................................................... 34
Servicing Door Seal between Door Frame and Stove Body.................................................................................................................... 34
Replacing Glass and Glass Seal to Door ................................................................................................................................................ 34
Door TensionAdjustment......................................................................................................................................................................... 35
Cleaning and Maintenance...................................................................................................................................................................... 35
Glass Door .............................................................................................................................................................................................. 35
Spare Parts available.............................................................................................................................................................................. 35
Warranty.................................................................................................................................................................................................. 36

4
The data can be found on the data badge located at the left side of the inner fire box
Fire Details
Serial Number
Model
Installation Date
Purchased From
Name
Address
Tel
Date
Installation By
Installer Name
Company
Address
Tel
Commissioning Please Circle One
Flue type correct
YES
NO
Flue swept and soundness checked
YES
NO
Smoke draw test (spillage) carried out
YES
NO
Air supply checked
YES
NO
Controls explained
YES
NO
HETAS Number
Signature
Print name

5
TECHNICAL SPECIFICATIONS
OPENING REQUIRED
16i
18i
50i
60i
70i
60i Low
70i Low
Width
407
457
547
647
747
647
747
mm
Height
554
554
593
593
593
493
493
mm
Depth
355
355
355
355
355
355
355
mm
Width
16
18
21
1
/
2
25
1
/
2
29
1
/
2
25
1
/
2
29
1
/
2
in
Height
21
7
/
8
21
7
/
8
23
3
/
8
23
3
/
8
23
3
/
8
19
3
/
8
19
3
/
8
in
Depth
14
14
14
14
14
14
14
in
STANDARD FRAME 30mm all sides
Width A
450
500
582
682
782
682
782
mm
Height B
576
576
615
615
615
518
518
mm
Depth C
12
12
12
12
12
12
12
mm
Width A
17
3
/
4
19
5
/
8
22
7
/
8
26
7
/
8
30
3
/
4
26
7
/
8
30
3
/
4
in
Height B
22
5
/
8
22
5
/
8
24
1
/
4
24
1
/
4
24
1
/
4
20
3
/
8
20
3
/
8
in
Depth C
1
/
2
1
/
2
1
/
2
1
/
2
1
/
2
1
/
2
1
/
2
in
WIDE FRAME 50mm top & sides, 30mm base
Width
A
490
540
622
722
822
722
822
mm
Height
B
596
596
635
635
635
538
538
mm
Depth
C
12
12
12
12
12
12
12
mm
Width
A
19
1
/
4
21
1
/
4
24
1
/
2
28
3
/
8
32
3
/
8
28
3
/
8
32
3
/
8
in
Height
B
23
1
/
2
23
1
/
2
25
25
25
21
1
/
8
21
1
/
8
in
Depth
C
1
/
2
1
/
2
1
/
2
1
/
2
1
/
2
1
/
2
1
/
2
in
OUTER FIREBOX
Width
D
399
449
531
631
731
631
731
mm
Height
E
549
549
588
588
588
488
488
mm
Depth
F
347
347
347
347
347
347
347
mm
Width
D
15
3
/
4
17
3
/
4
20
7
/
8
24
7
/
8
28
7
/
8
24
7
/
8
28
7
/
8
in
Height
E
21
5
/
8
21
5
/
8
23
1
/
8
23
1
/
8
23
1
/
8
19
1
/
4
19
1
/
4
in
Depth
F
13
3
/
4
13
3
/
4
13
3
/
4
13
3
/
4
13
3
/
4
13
3
/
4
13
3
/
4
in
OUTPUTS (WOOD)
Room size heated
70
100
130
150
200
130
170
M
3
Total nominal heat output
†
3.6
4.9
6.3
7.5
10
6.5
8.5
kW
Net efficiency
†
85
85
84
84
77
78
73
%
MINIMUM FLUE SIZE
Diameter
125
125
125
125
125
125
150
mm
Diameter
5
5
5
6
6
6
6
in
Area
123
123
123
177
177
177
177
cm
2
Area
20
20
20
28
28
28
28
in
2
Minimum flue draught
12
12
12
12
12
12
12
Pa
Depth to flue G
150
150
150
136.5
136.5
136.5
136.5
mm
Depth to flue G
6
6
6
5
3
/
8
5
3
/
8
5
3
/
8
5
3
/
8
in
Flue gas temp to EN13229:2001
182
225
7
292
350
7
7
°C
Flue gas mass flow to EN13229:2001
2.7
3.1
7
4.2
6.7
7
7
gs-1
Mean CO
2
in flue gas to EN13229:2001
10.72
12.44
7
14.48
12.40
7
7
%
Mean CO @ 13% O
2
to EN13229:2001
0.37
0.35
7
0.24
0.45
7
7
%
CHIMNEY HEIGHT
Above fire
4.5
4.5
5
5
5
5
5
m
Above fire
15
15
16
1
/
2
16
1
/
2
16
1
/
2
16
1
/
2
16
1
/
2
ft
AIR SUPPLY
Area
0*
0*
10
14
27.5
10
20
cm
2
Area
0*
0*
2
2
1
/
2
4
1
/
2
2
4
in
2
WEIGHT
65
75
80
90
100
80
90
Kg
MAXIMUM WOOD SIZE
Length
200
275
300
400
500
400
500
mm
Diameter
75
75
75
100
100
100
100
mm
MAXIMUM REFUEL WEIGHT
1.00
1.28
1.80
2.25
2.84
2.00
2.50
Kg
MINIMUM REFUEL INTERVAL
60
60
60
60
60
60
60
Min
SMOKELESS ZONE REPORT
Defra approved for wood
3
3
3
3
7
7
7
† Tested to EN13229:2001. 50i, 60i Low and 70i Low are Jetmaster estimated figures.
* An air supply may be required in homes which have high levels of air tightness.

6
INSTALLATION INSTRUCTIONS
THE 16i, 18i, 50i AND 60i INSET APPLIANCESARE
DESIGNED AND APPROVED TO BURN WOOD
IN A SMOKE CONTROLLED AREA WHEN FITTED AND OPERATED IN
LINE WITH THESE INSTRUCTIONS.
Introduction
READTHESEINSTRUCTIONS CAREFULLYBEFORESTARTINGTHEINSTALLATION.CLOSEATTENTION
TO THE DETAILSOF INSTALLATIONWILL ENABLE YOU TO GET THE BEST RESULTSFROM YOUR FIRE.
NOTE: THESE INSTRUCTIONS SHOULD BE RETAINED FOR FUTURE REFERENCE.
There are three essential requirements for a successful installation.
A. The fire must be correctly fitted into the recess andsurround.
B. The chimney must be swept and of correct dimensions, be suitable for use with a wood burning stove and
be terminated clear of any possible windeffects.
C. There must be an adequate supply of air into either the appliance if an external air supply is used, or
adequate air supply into the room if an external air supply is notused.
Dimensions
TheTechnicalSpecificationsonpage5containsallthedimensionalinformationnecessarytoallowtheinstallation
to be properly planned.
Regulations
In the United Kingdom, the installation must be in accordance with: -
• TheBuildingRegulationsissuedbytheDepartmentoftheEnvironmentortheBuildingStandards
(Scotland) (Consolidation) Regulations issued by the Scottish Development Department.
• Allrelevantcodesofpracticeandrelevantpartsofanylocalregulations,includingthosereferringtoNational
andEuropean standardsCode of PracticeBS8303for installation of domestic heating andcooking appliances
burning solid mineralfuel.
• The current issue ofBS EN 15287-1:2007 for design, installation and commissioning ofchimneys must
be followed.
• In your own interest and for safety, in the United Kingdom, it is the law that all solid fuel appliances are
installedbycompetentpersons,aregisteredinstallerorapprovedbyyourlocalbuildingcontrolofficer. The
Heating Equipment Testingand Approval Scheme (HETAS) require its members to work to recognised
standards.
• Inothercountries,theinstallationmustalsoconformtothenationalandlocalregulationsinforce.This
may includeonlytheuseofpermittedfuelsinsomecountries.
The Clean Air Act 1993 and Smoke Control Areas
Under the Clean Air Act local authorities may declare the whole or part of the district of the authority to be a
smoke control area. It is an offence to emit smoke from a chimney of a building, from a furnace or from any fixed
boiler if located in a designated smoke control area. It is also an offence to acquire an “unauthorised fuel” for
use within a smoke control area unless it is used in an “exempt” appliance (“exempted” from the controls which
generally apply in the smoke control area). The Secretary of State for Environment, Food and RuralAffairs has
powers under the Act to authorise smokeless fuels or exempt appliances for use in smoke control areas in
England. In Scotland and Wales this power rests with Ministers in the devolved administrations for those
countries. Separate legislation, the Clean Air (Northern Ireland) Order 1981, applies in Northern Ireland.
Therefore, it is a requirement that fuels burnt or obtained for use in smoke control areas have been “authorised”
inRegulationsandthat appliances usedto burnsolidfuelin thoseareas(otherthan“authorised” fuels) havebeen
exempted by an Order made and signed by the Secretary of State or Minister in the devolvedadministrations.

7
Air Control Stop (Low Rate Stop)
The 16i, 18i, 50i and 60i have been recommended as suitable for use in smoke control areas when burning
wood and are fitted with a low rate stop. This stop prevents the air control lever being slid to the fully closed
position. This will allow the fire to be turned down to a minimum setting without being fully closed.
If the fire is installed into a smoke controlled area then the low rate stop MUST be left fitted in position. If the
fire is not installed in a smoke controlled area then the stop may be removed.
Further information on the requirements of the Clean Air Act can be found here:
www.gov.uk/smoke-control-area-rules
Your local authority is responsible for implementing the CleanAirAct1993 including designation andsupervision
of smoke control areas and you can contact them for details of Clean Air Act requirements.
Health and Safety Precautions
Special care must be taken when installing the stove such that the requirements of the Health and Safety at
Work Act are met.
THIS APPLIANCE IS DESIGNED AND APPROVED TO BURN WOOD WITH THE DOOR CLOSED.
WHEN A COAL GRATE IS INSERTED, THEN COAL, SMOKELESS FUELS AND OTHER SOLID FUELS
MAY BE BURNT.
THIS APPLIANCE IS NOT DESIGNED TO BURN GAS.
Important Points to Note before Starting Installation.
Convection Inlet
This must never be restricted. The fire can be fitted on a small plinth for aesthetic reasons also this will help
prevent the ingestion of any ash from the hearth into the air inlet.
Paint
It is strongly recommended that the fire is protected from cement and plaster splashes during installation, as
these are difficult to remove from the surfaces.
Modular Construction
Due to the modular construction of the unit, you can for instance:
Fit the flue connector, air supply pipes and the outer box. The rest of the components can be kept in safe storage
while all rough building and finishing work is being completed. At the final stage, the engine and finishing frame
can be fitted.
Thiswaythereislesschanceof aestheticdamage,or accidentaldamagetoimportantcomponentswhilebuilding
work is inprogress.
Fire Cement
Some types of fire cement are caustic and should not be allowed to come into contact with the skin. In case of
contact wash immediately with plenty of water.
Asbestos
This stove contains no asbestos. If there is a possibility of disturbing any asbestos in the course of installation
then please seek specialist guidance and use appropriate protective equipment.
Metal Parts
When installing or servicing this stove care should be taken to avoid the possibility of personal injury.
Installation Requirements
Any under floor vents or openings within the builders opening should be sealed off.
The surface of the hearth and fireplace floor must be sufficiently flat to ensure that a good seal with the outer
firebox can be made and to enable the finishing frame to fit. Any excessive unevenness (uneven tiles, stone,
etc.) should be rectified.

8
The front face of the fireplace should be reasonably flat over the area covered by the outer firebox top and side
flange seals to ensure good sealing. These faces should be made good if necessary.
The appliance must not stand on combustible materials or carpets.
Unpacking
Handling - Adequate facilities must be available for loading, unloading and site handling.
The fire and the following components are packed in several cartons. Takecare when unpacking the fire to avoid
accidental damage. Particular care should be taken with the glass door and the air control mechanism.
Ensure that all the listed items are present before commencing installation.
• Firebox consisting of an outer box and an inner firebox
• Finishing Frame
• Flue Adaptor
• Roll of Fibre Insulation for back and sides
• Sheet of White Ceramic Insulation for top (2 layers)
• Door operating tool
• Installation & Operating Instructions
• Guarantee card
Optionalexternalairkitconsistingof: OptionalBasketforburningsmokelessfuel-
1. Flexible air pipe 63mm x1 2.Clamp x1 60i and 70i
Optional Hot air ducting kit consisting of
1. Flexible pipe 150mm x1 2. Flexible pipe spigot attachment x1
3. Clamps x 2 4. Closable air grille x1 5. Bolts for pipe spigot attachment x 3
INNER OUTER FINISHING FLUE STANDARD
BOX BOX FRAME COLLAR HANDLE

9
Chimneys and Flues
The flue and chimney must be inspected before installation to ensure that it is suitable for the appliance being
fitted. Chimney and flue systems must meet the requirements of the Building Regulations Document J.
Soundness of Flue
The flue must be sound and free from cracks and obstructions. New flues should be lined.
All flues should be swept clean prior to installation and inspected for soundness and freedom from
blockages.
Any flue liner must comply with the test requirements for flue liners for use with burning solid mineral fuels.
Flue Size / Dimensions
Whether the chimney is old or is newly built, its dimensions must be adequate to support the size of fire to be
installed. The larger the fire, the greater the size of flue and the taller the chimney required.When specifying flue
liners, ensure that the important internal dimensions arestated.
The minimum height of any flue must be 4.5m measured from the top of the fire to the top of the flue. See the
Technical Specifications on page 5 for recommended flue size and minimum chimney height.
The flue must not be used for any other appliance or application.
Use of Existing Chimneys
These must beswept and inspected for dimensions and soundness before starting to install thefire. Existing flue
liners should be inspected and replaced if required.
Termination
It is important to terminate the top of the flue in such a way that it will allow free passage of combustion products
to the atmosphere without being subjected to turbulent air or high-pressure zones that could cause a
downdraught.
Building regulations stipulate minimum clearance above windows and ventilation openings.
Pots should be simple, open topped and with the same internal diameter as the flue. Unconventional pots or
terminals must be so designed that will operate satisfactorily in all wind directions. Take steps to prevent birds
nesting in the terminal. Thatch roofs need specialist advice. Please contact your chimney supplier.
Flue Outlet
Flow from the outlet must be totally free from any obstruction.
Bends
The ideal flue is straight and vertical. New chimneys must not deviate more than 45º from the vertical, but it is
desirable that the deviations do not exceed 30º. Bends greater than 30º should be avoided where possible. In
older chimneys bends exceeding 45º may be found and will degrade flue performance.
Sweeping
The chimney can be swept through the fire. Thefire is provided with removable baffle boards tofacilitate chimney
sweeping and for the removal of soot from the unit. The fire must be installed in such a way that this can be
carried out. The Flue Collar can be installed either vertically or 30° from vertical.
Flue Connection
The flue collar can be connected to the stove after the fire has been put into position.
Make sure the gasket is fitted over the flue collar before making any connection to the flue liner or flue pipe.
If connecting to a stainless-steel liner, the flue liner and single skin adaptor can be lowered down the chimney
and the spigot end of the adaptor lowered into the firebox.
The flue collar can then be connected to the adaptor.
The completed flue collar assembly can then be pushed up to the top plate of the stove and secured in position
using the four M8 nuts and washers. Check the clearance of the flue liner adaptor through the top of the stove
before deciding on this method.

10
If connecting to an existing masonry chimney, it is recommended that a flue forming pipe (short length of flue
pipe) is used and the void between the flue forming pipe and the chimney filled with vermiculite concrete.
A suitable access hole will need to be made in the chimney breast to allow the back filling to be carried out and
then filled and sealed once the installation is complete.
Alternatively, a connection can be made using a register plate although it will be necessary to allow access for
fitting the flue pipe to the register plate and sealing all joints.
HEARTHS
Hearths must be in line with the Building Regulations Document J and be suitable for use with a solid fuel fire.
Both the constructional hearth and the superimposed hearth must be made from non-combustible material.
Constructional hearth must be at least 125mm thick and protrude 500mm forward from the front face of the
appliance and 150mm each side from the edge of the appliance. See diagram.
Superimposed hearth must be 225mm forward from the front face of the appliance and 150mm each side from
the edge of the appliance. Seediagram.
New hearths, fireplaces recesses and chimneys should be constructed to conform to Building Regulations
Document J.
Hearths, or plinths constructed to support the fire above the hearth, must be horizontal.
Any hole in the wall installation will still require a hearth to be fitted.
The floor or recess on which the fire stands shall have adequate load bearing capacity. Particular attention shall
be paid to existing constructions.
It is important to ensure that the fireplace is installed on a non-combustible surface.
Do not install this unit directly onto wooden or carpet floors.
Allowances must be made for expansion and contraction when fitting materials up against the fire which may
become hot.
COMBUSTIBLE MATERIALS
Protection of Heat
As on all heat producing appliances the use of flammable wall coverings and combustible materials directly
above or to the sides of the fire may lead to a fire hazard. Please bear this in mind when installing the appliance
or decorating.
500
225
30

11
Fire Surrounds and Shelves
If in doubt always consult the building regulations regarding the proximity of combustible materials.
Some fire surrounds require the fire to be set forward from the chimney breast or to be raised for aesthetic
reasons. Ensure that these requirements are taken into account whenpositioning the fire. Takethis into account
when forming the recess and front finished face of the fireplace for the fire. Surrounds should be suitable for use
with a solid fuel fire.
Use the table below to achieve the minimum distances to combustible surrounds.
Model
Min Height from frame of fire
to underside of shelf or
surround
Shelf depth out from wall. For every
increase in Depth of 25mm. Height
to under- side to increase by 50mm
Min distance from side
of fire frame to upright of
surround
16i
300mm (12”)
100mm (4”)
150mm (6”)
18i
300mm (12”)
100mm (4”)
150mm (6”)
50i
350mm (14”)
100mm (4”)
150mm (6”)
60i
375mm (15”)
100mm (4”)
175mm (7”)
70i
450mm (18”)
100mm (4”)
200mm (8”)
60i Low
375mm (15”)
100mm (4”)
175mm (7”)
70i Low
450mm (18”)
100mm (4”)
200mm (8”)
In certain cases, further protection may be required to guard against heat on combustible materials, such as
increasing the shelf height or shielding with a non-combustible material.
This is because of the variability of the heat produced from a solid fuel fire.
It is dependent on the quality of fuel used and the refuelling frequency.
Pictures and TV’s
Due to the extreme temperatures that can be achieved above the fire, always ensure that any TV’s, paintings or
other combustible items that may be near do not become excessively hot. For TV’s always consult the
manufacturer’s instructions to see if exposure to heat will cause damage.
Plastering
Hot air can cause staining above the fire in the same manner as on the wall above a radiator. This
often shows more on lighter coloured finished surfaces. The area directly above the fire will
become very hot. Therefore, to reduce the risk of cracking we advise the following:
When plastering above the fire, fit reinforcing mesh (expanded metal lathing) for at least 225mm above the fire
and for the full width of the fire. This mesh can be continued down the sides of the fire.
Use a high temperature or other heat resistant plaster.
AIR SUPPLY
All fires require a supply of air to support combustion and to allow the chimney to draw correctly.
Air starvation will result in poor flue draw and smokiness in the room.
All installations will require a permanent dedicated air supply for the fire of at least 5.5cm2 per kW of rated
heat output over 5kW.The size of air supply duct or ducts recommendedfor each fire is shown in the Technical
Specifications on page 5.
An air supply may be required in homes which have high levels of air tightness even if the fire output is
5kW or less.
The Building Regulations Document J and L must be taken into account when providing ventilation for
the fire.
Newly constructed houses, especially those using double-glazing and employing modern draught control
techniques, will need careful planning of air entry.
Extractors or fans when operated in the same room or adjoining room of the fire may cause problems.
If there is a fan or extractor fitted in the property then allowance for additional air may be required. See
commissioning section.
If there is more than one appliance in the property then each appliance must be supplied with adequate
combustion air and ventilation so that all the appliances can operate simultaneously.

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Air Supplied from Room
Bring air in to the room close to the fire. The ideal position is just to the sides of the fireplace opening as shown.
It can be split and brought up in two positions if required, one each side of the fireplace opening.
Careful positioning of the vents is essential so that they are not liable to become blocked and cause cold
draughts.
Where possible, draw air from two walls at right angles and duct to a mixing chamber beneath the floor before it
enters the room. This will reduce the influence of strong winds on the supply of air. Where an existing floor is
solid, vents may have to be provided through the walls in a manner, which achieves conditions as close as
possible to the above, perhaps, by the use of ducting or of falseskirting.
Wherethere isa suspendedfloorover awellventilated underfloorspace,it maybe sufficientjusttoset ventilation
openings through the floorboards adjacent to the chimney breast. Older houses with the possibility of draughts
entering around doors and windows will still profit from the provision of a separate air supply as, properly placed,
this will stop or reduce colddraughts.
DO NOT set a ventilation grille in the hearth immediately in front of the fire. The cold air entering the room will
form a cold ‘curtain’ in front of the fire and may destroy the convection of warm air around the room.
DO NOT place an air supply inlet across the room from the fire. The draught of cold air crossing the room will
scour the room of warm air and the overall heating effect of the fire will be reduced.
DO NOT set a ventilation grille in a position where they may become liable to blockage.
Where the floor is solid, vents need to be provided through the walls in a manner, which achieves conditions as
close as possible to the above, perhaps, by use of ducting or false skirting.
When bringing in the air supply consideration should be given to any regulations that would effect the position of
any ducting or ventilationgrilles.
Air Supplied from External Source
The primary air can be taken from an external source from outside the building.
There is a knockout circular hole on the back of the outer box that will allow a 63mm flexible air pipe to be
pushed through the back of the outer box and over an adaptor sleeve and then over the air chamber pipe
attached to the inner firebox. An air kit is available as an optional extra to do this.
With this in place the flexible pipe can be fed through the wall or floor to an external air source. An open grille
maybe attached to the end of the flexible pipe to stop debris from blocking the pipe. Ensure that the grille does
not restrict the air supply. The air requirements are listed in the Technical Specifications on page 5.
Where direct ducted air is fitted it is still necessary to fit fixed permanent ventilation into the room in accordance
with the requirements of Approved DocumentJ.

13
Fitting the Fire
Site Preparation for Fitting
Builders Opening
If installing the fire in an existing fireplace, first remove all loose material from the recess and measure the
opening and recess toensure that the Jetmaster outer firebox will fit. The opening must be high and wide enough
to allow the outer firebox to be pushed into position. Allow extra height if connecting directly to the existing flue
to make the connection.
The recess must be large enough to provide a clearance around the sides, back and top of the outer firebox to
allow the insulation to be fitted. Cut away or build up to achieve the desired dimensions. See Technical
Specifications on page 5.
Do not remove any structural lintels without first seeking expert advice. Often identification and location of the
lintel can be found by removing some surface plaster above the opening that is to be altered.
Where the recess is to be newly built, form the recess to give a clearance around the sides and back of the outer
firebox to accommodate the insulation.
For details of opening sizes required. See Technical Specifications on page 5.
The fire must be directly connected to the flue system. With an existing flue check that a sealed flue connection
can be achieved between the fire adaptor and the flue. Some adaption may be required to the existing flue to
enable it to fit with the adaptorsupplied.
Where a closure plate is required then it must conform to the Building Regulations.
The fire surround should be flat around the sealing area of the fire. Check that the hearth, or new plinth where
this is constructed, is horizontal and parallel to the finished fire lines.
Inglenook Installations or freestanding
The fire should be set within a brick, stone or non-combustible recess built within the inglenook. The flue
connection from the top of the fire to the chimney can be made with flue liners if the brick or stone extends at
least to the height of the top of the register plate and the liner runs to the top of the flue and is sealed.
Alternatively, if freestanding and just clad around in a non-combustible material then suitable flue pipe sealed at
the fire adaptor and sealed into the existing chimney flue where it narrows should be used. The inglenook above
the lintel should then be sealed with a non-combustible register plate conforming to the Building Regulations.
The register must be air tight and sealed around the edges, the flue connection passing through it and the
inspection access cover. The register should be supported on a framework of non-combustible material.
Flue liners or flue pipe used must be of the correct size for the fire and must be suitable for use with solid fuel
fires. Flue pipes of aluminium or asbestos may not be used, nor may flexible pipes of aluminium or single wall
stainless steel.
Appliance Preparation
Door Removal/Replacement
Unlock the door with the handle provided.

14
Open the door fully and carefully support the door, at the same time pull down the spring-loaded pin at the top
of the door and lift the door up and outwards away from the lower hinge attachments on the firebox. Set aside
in a safe place for refitting later.
Releasing the door pin
Take care not to damage the door seal.
Place the door on a soft surface in a safe position to protect the glass, paint and inner seal.
Particular attention should be given so that the painted edges do not become damaged.
Refit the door using the reverse process.
Lower door pin on stove body Upper door pin attached todoor
Air Control Stop (Low Rate Stop)
Once the door has been removed the low rate stop will be visible. This stop prevents the air control lever being
slid to the fully closed position. This will allow the fire to be turned down to a minimum setting without being fully
closed.
If the fire is installed into a smoke controlled area then the low rate stop MUST be left fitted in position. If the fire
is not installed in a smoke controlled area then the stop may be removed.
Log Retainer Removal and Replacement
The log retainer can be detached and removed at the front of the fire box by sliding up, disengaging the tags
from the slots at each side of the inner firebox at the front. To refit, slide down and locate the tags into the slots
at each side of the inner firebox at the front. The retainer should be fitted the correct way around as shown in
the photo.

15
Tertiary Air Tubes
There are two tertiary air tubes located at the top of the inner firebox to bring air into the fire. One is large and
one is small. Each tube is held in its position by a swing cam catch attached with a single 8mm bolt to the left
hand inner side of the firebox. The cam catch has a locator at its end that locates in a hole at the end of the tube.
Whenthecamcatchlocatorispositionedinthetubeholetheboltistightenedtoholditinthis positionthus trapping
the tube. This ensures that the tube will not slide out and it keeps the tube with its tertiary air ports in the correct
position within the stove.
Above the two tubes are 2 sets of baffle boards. The two lower baffles are loose, just resting on the tubes and
touching the rear of the stove. They are not fixed with any fixings. The one upper baffle is held in place by a
bracket at the rear and a bracket at the front top, being trapped between the two brackets.
Baffle Boards
Upper baffle board and location brackets
Tertiary Air Tube and Lower Baffle Removal and Replacement
The sequence for easy removal of the air tubes and lower baffles are thus: -
First remove the front tertiary air tube closest to the door of the fire.
To remove the tube, slacken the 8mm bolt using a 13mm spanner. Once the bolt is slack then the cam catch can
be rotated slightly so that the locator comes away from the tube hole releasing thetube.
There is no need to remove the 8mm bolt completely. It is easier for reassembly to just leave it loose.
8mm bolt holding cam latch Cam latch
Once this has been carried out then the tube can be slid across so that one end is released from the side
chamber to drop down allowing space to pull it out of the other side of the chamber.
Next slide forward the lower baffles over the rear tube and drop their front edge down and remove them from the
fire. Note their orientation as they are longer along oneedge.
Finally remove the rear tube in the same manner as the front tube. Replacement is the reverse procedure.
First fit the Rear Tube, then the lower baffles and then the Front Tube.

16
CAUTION
Ensure that the cam catch locator is positioned in the tube hole when the bolt is tightened to trap the tube from
sliding out and to ensure that the tertiary air ports are in their correct position within the fire.
Ensure that the baffles are fitted the correct way around and centrally left to right.
Ensure that the lower boards are pushed together in the centre, as shown in the photo above.
Rear tertiary air tube
Cam Catch
Cam Catch
Front tertiary air tube
Upper Baffle Removal and Replacement
Above the lower baffles is an upper baffle.To remove this, first remove the tertiary air tubes and the lower baffles.
Once this has been carried out then the upper baffle can beremoved.
The upper baffle is held in place between a recessed bracket in the back panel and a bracket at the top front that
supports it. The back of the upper board fits in a recess at the rear of the stove. Thus, the board is trapped/rests
between the front bracket and the rear of thebox.
Upper baffle board and location brackets
To remove the upper baffle, pull the board forward out of the rear recess and lower the board down.
This is achieved by lifting the front of the board up and at the same time pulling forward so that the rear of the
board “tongue” disengages from the recess bracket in the back panel. Then drop the rear of the board down,
lowering the front to clear the front bracket.
Note: No tools are necessary to remove the upper baffle. Replacement is the reverse procedure.
8mm bolt
Cam Catch
Front and back tertiary tubes are
designed to slide across to be
released from side chambers

17
Removing and Replacing Ash Pan
Remove the ash pan by sliding it out from under the grid.
Fit the ash pan by sliding in under the cast bottom grid. Ensure it is fitted the correct way around with the handle
towards the front as shown below.
Bottom Grate Removal and Replacement
The bottom grate can be removed by lifting up at the back edge and lifting out.
The grate may need tilting sideways to clear the stove opening when removing.
To refit, reverse the procedure by inserting the front edge in first and gently lower the back edge.
Internal Board Removal and Replacement (Rear and Sides)
The internal boards need to be taken out in the following sequence: -
IMPORTANT First remove the Ash Pan then the Bottom Grate followed by the Rear boards and then the Side
boards.
Although the boards are durable care should be taken not to break them during handling.
The position of the boards must be noted so that they can be replaced back in the same positions and order.
Note also that some of the boards can only be fitted one way around or are handed.
Rear Board Removal and Replacement
Remove the rear vertical board by gently pulling the top edge out first, then slide forward.
Replacement is the reverse procedure.
The rear board will need to be tilted/twisted sideways to clear the stove opening in a similarmanner tothe bottom
grate.

18
Side Board Removal and Replacement
The left and right-side boards can be removed by gently pulling one edge out first then, slide the boards towards
the centre of the stove. Replacement is the reverse procedure.
To replace the boards, offer one edge in first and then push the board gently back.
Note: - They should be pushed back flat against the steel body of the fire.
Note: - Some of the boards will only fit one way around and if they are forced will break.
Flue Adaptor Removal (If fitted to fire)
With the internal components removed it is now possible to get to the flue adaptor nuts and washers. These
should be removed and the adaptor carefully removed from the top of the fire. Take care not to damage the
adaptor seal. If some of the internal boards are still in situ then care should be taken when removing and
replacing the flue adaptor bolts so that none of the internal parts become damaged.
Inner Firebox “Engine” Removal
Finally, with the adaptor removed the inner firebox engine can be removed.
To remove the inner firebox, lift slightly at the front to disengage the 2 tags that locate the inner box into the outer
box slot at the front, see photo. Then slide the inner firebox “engine” out on the guides from the outer box. Small
wheels at the rear of the firebox will ease this operation. With the inner and outer boxes now separate work can
begin to fit the outer firebox into the prepared opening.
Inner box tag Outer box slot
FITTING THE FIREBOX
Due to the modular construction of the unit, you can for instance:
Fit the air supply pipe and the outer box. The rest of the components can be kept in safe storage while all rough
building and finishing work is being completed. At the final stage, the engine, Flue Adaptor and finishing frame
can be fitted.
This way there isless chance of aesthetic damage, or accidental damage toimportant components while building
work is inprogress.
Outer Firebox Fitting
The box can be sealed to the opening using the insulation supplied, or similar insulating material.

19
Place the outer firebox in front of the prepared opening. Wrap the sides and back of the fire with the fibre
insulation and hold this in place with tape. Two layers of white ceramic insulation should be placed across
the top of the outer firebox relieving around the area for the flue adaptor. This is to allow for expansion and
contraction and to protect the wall above from excess heat.
Slide the outer firebox into position in the prepared recess, taking care not to snag the insulation on the sides/
top of the opening.
Note: - If an external primary air supply is to be used then the knockout in the rear of the outer box must be first
removed before fitting the outer box into the opening. Then, depending on the route of the flexible pipe a hole or
clearance needs to be made behind the outer box to accommodate the pipe routing it to external air.
Larger voids around the box can be filled with a non-combustible insulation.
Once in position fix the outer box by drilling through the fixing holes located in the base and screw/bolt to the
base of the opening using suitable fixings.
Infilling above the Outer Box
Where the opening is significantly higher than the outer firebox, the space may be filled by brickwork. Place a
layer of the white ceramic insulation beneath the bricks to provide an expansion joint on top of the outer firebox
in front of the adaptor to allow for expansion and contraction and to protect the wall above from excess heat. If
more than three or four courses of brick are needed, these should be supported on a lintel or steel bar between
the jambs.
Where slate or marble slips are used, these should be placed behind to form a sliding contact and thus allow for
the expansion of the fire. Do not allow slips, marble, plaster or brickwork etc to abut the edge of the frame or to
have direct contact with the firebox as expansion of the fire may cause them to crack. Use a strip of insulation
as an expansion joint wherenecessary.
Fitting Hot Air Ducts (Optional Extra)
Hot air from around the convector box can be taken to another area within the room or to another room. If this
is required then an optional air ducting kit is available (see page 8). This must be fitted at the time that the outer
firebox is being fitted.
Use the bolts to attach the spigots to the outer box. A 10mm socket will make this easier. The 150mm flexible
pipe can then be attached to the spigot with one of the clamps. The other end of the flexible pipe can be
positioned where the air grille will be located and attached to the back of the grille with the other clamp. The
flexible pipe may be trimmed if required to suit the routelength.
Hot air ducting kit Hot air duct attached to side of outerbox

20
External Air Supply Fitting
The primary air can be taken from the room or alternatively it can come from an external source from outside
the building.
If taken from theroom then air ducts are requiredtotheroom, asthefire will take its primary air from the chamber
around the fire that is fed by air from theroom.
If air is required to be brought in from an external source then first the knockout at the rear of the outer box
should be removed by careful removal with a hammer.
This will allow a 63mm flexible pipe to be pushed through the back of the outer box and over the air chamber
pipe attached to the inner firebox.
The flexible pipe should be held in place with the circular clamp supplied.
It is usually easier to fit the flexible pipe to the inner firebox first then slide the flexible pipe through the knockout
hole in the outer box as the inner box is being slid into place. Then at this point the flex can be fed through any
holes in the wall or floor to an external air source. An open grille maybe attached to the end of the flexible pipe
to stop debris from blocking the pipe. Ensure that the grille does not restrict the air supply. The air requirements
are listed in the data table on page 5.
Where direct ducted air is fitted it is still necessary to fit fixed permanent ventilation into the room in accordance
with the requirements of approved Document J.
Outer box knockout 63mm pipe attached to innerbox
63mm flexible pipe pushed through outer box
Inner Firebox “Engine” Fitting
Before sliding the inner fire box engine into the outer box check that the air linkage mechanism is
working correctly. Failure to do this may result in having to disconnect the flue at a later stage to remove
the inner box to be able to rectify themechanism.
Once this is done slide the inner box “engine” into the outer box. Guides allow for easy location. The guides on
the outer firebox have 2 slots cut into them at the front, one each side, see photo. As the inner box is slid
backwards, ensure that the tags on the inner box locate into the slots of the outer box, see photo.
This will position the inner fire box in the correct position.
Air linkage mechanism Outer box slot Inner box tag