Baxi 751 Assembly instructions

5112082/01
INSTALLER GUIDE
INSTALLER: Please leave this guide with the
owner
Model 751
Heat Engine
(GC No. 32-032-67)
INSET LIVE FUEL EFFECT GAS FIRE
THIS APPLIANCE IS FOR USE WITH NATURAL GAS (G20)
WHEN CONVERTED USING CONVERSION KIT NO. 0595211 THIS
APPLIANCE IS FOR USE WITH PROPANE GAS (G31)
THIS APPLIANCE IS SUITABLE ONLY FOR INSTALLATION IN THE UNITED
KINGDOM (GB) AND THE REPUBLIC OF IRELAND (IE).
© Baxi Heating U.K. Ltd.
For technical advice firstly contact your retailer. If further advice is required then call
0161703 8157 for The Midlands and North or
01462 813 138 for The South.

Safety First.
This gas fire is CE Approved and designed to meet the appropriate British Standards
and Safety Marks.
Quality and Excellence.
This fire has been manufactured to the highest standards of quality and excellence and
was manufactured under a BS EN ISO 9001 quality system accepted by the British
Standards Institute.
The Highest Standards
The manufacturer is a member of the Society of British Gas Industries which works to
ensure high standards of safety, quality and performance.
Careful Installation
The manufacturer is a CORGI registered company. This gas fire must be
installed by a competent CORGI Registered Installer in accordance
with our Installer Guide and should not be fitted directly on to a
carpet.
Baxi Fires Division, Erdington, Birmingham B24 9QP
Because our policy is one of constant development and improvement, details may vary slightly from those
given in this publication
Page 2
INSTALLER GUIDE

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INSTALLER GUIDE
CONTENTS
Section Heading Page
1. SAFETY 4
2. APPLIANCE DATA 4
3. GENERAL INSTALLATION REQUIREMENTS 5
4. PACK CONTENTS 11
5. FIREPLACE CHECK 13
6. IGNITION CHECK 14
7. GAS SUPPLY CONNECTION 15
8. PREPARING APPLIANCE FOR INSTALLATION 15
9. CONVECTION BOX INSTALLATION 18
9.1 Method 1 - Front fixing to fireplace surround. 18
9.2 Method 2 - Cable retention and floor fixing. 18
9.3 Sealing floor front - all installations. 20
10. BURNER & SUPPLY PIPE INSTALLATION 21
11. CERAMIC WALLS INSTALLATION 22
12. FITTING THE CERAMIC FUEL EFFECT 23
13. FITTING THE FASCIA 23
14. FULL OPERATING CHECKS 24
14.1 Spillage check. 24
14.2 Flame supervision and spillage monitoring system. 25
15. FINAL REVIEW 26
16. SERVICING & PARTS REPLACEMENT 27
16.1 Checking the aeration setting of the burner. 28
16.2 To remove the fascia. 28
16.3 To remove the complete burner unit. 28
16.4 To remove the pilot unit. 28
16.5 To remove the gas valve. 29
16.6 To remove the piezo generator. 29
16.7 To grease the gas valve. 29
16.8 To replace the burner. 30
16.9 To remove the main burner injector. 30

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INSTALLER GUIDE
1. SAFETY
Installer
Before continuing any further with the installation of this appliance please read the
following guide to manual handling.
!The lifting weight of the heat engine and convection box is 6.39kg.
!
One person should be sufficient to lift the heat engine and convection box. If for any
reason this weight is considered too heavy then obtain assistance.
!When lifting always keep your back straight. Bend your legs and not your back.
!Avoid twisting at the waist. It is better to reposition your feet.
!Avoid upper body/top heavy bending. Do not lean forward or sideways whilst
handling the heat engine.
!Always grip with the palm of the hand. Do not use the tips of fingers for support.
!
Always keep the heat engine as close to the body as possible. This will minimise the
cantilever action.
!Use gloves to provide additional grip.
!Always use assistance if required.
2. APPLIANCE DATA
This product uses fuel effect pieces and burner compartment walls containing
Refractory Ceramic Fibres (RCF), which are man-made vitreous silicate fibres.
Excessive exposure to these materials may cause irritation to eyes, skin and
respiratory tract. Consequently, it is important to take care when handling these
articles to ensure that the release of dust is kept to a minimum. To ensure that the
release of fibres from these RCF articles is kept to a minimum, during installation
and servicing we recommend that you use a HEPA filtered vacuum to remove any
dust and soot accumulated in and around the fire before and after working on the
fire. When replacing these articles we recommend that the replaced items are not
broken up, but are sealed within a heavy duty polythene bag, clearly labelled as
RCF waste. This is not classified as “hazardous waste” and may be disposed of at a
tipping site licensed for the disposal of industrial waste. Protective clothing is not
required when handling these articles, but we recommend you follow the normal
hygiene rules of not smoking, eating or drinking in the work area and always wash
your hands before eating or drinking.This appliance does not contain any
component manufactured from asbestos or asbestos related products.

*When converted using kit 0595211.
The appliance data label is located on a plate at the base of the fire. This can be seen by
pulling on the raised tab.
3. GENERAL INSTALLATION REQUIREMENTS
3.1 The installation must be in accordance with these instructions.
For the user’s protection, in the United Kingdom it is the law that all gas appliances are
installed by competent persons in accordance with the current edition of the Gas Safety
(Installation and Use) Regulations. Failure to install the appliance correctly could lead
to prosecution. The Council for the Registration of Gas Installers (CORGI) requires its
members to work to recognised standards.
In the United Kingdom the installation must also be in accordance with:
All the relevant parts of local regulations.
All relevant codes of practice.
The relevant parts of the current editions of the following British Standards:-
BS 715 BS 1251 BS 1289 Part 1 BS 1289 Part 2
BS EN 1806 BS 4543 Part 2 BS 5440 Part 1 BS 5440 Part 2
BS 5871 Part 2 BS 6461 Part 1 BS 6891 BS 8303
In England and Wales, the current edition of the Building Regulations issued by the
Department of the Environment and the Welsh Office
In Scotland, the current edition of the Building Standards (Scotland) Regulations issued
by the Scottish Executive.
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INSTALLER GUIDE
Gas Natural (G20) Propane (G31) *
Inlet Pressure 20mbar 37mbar
Input - Max. (Gross) 6.85kW (23,400 Btu/h) 6.7kW (22,860 Btu/h)
Input - Min. (Gross) 2.3kW (7,850 Btu/h) 4.0kW (13,650 Btu/h)
Burner Test Pressure (Cold) 20.0 ± 1.0mbar (8.0 ± 0.4in
w.g.)
37.0 ± 1.0 mbar (14.85 ±
0.4in w.g.)
Gas Connection 8mm pipe 8mm pipe
Burner Injector Stereomatic Cat 82 - 074 Stereomatic Size 132
Pilot & Atmosphere Sensing
Device Copreci Ref. O.D.S
21500/166
Copreci Ref. O.D.S
21500/166 Fitted with RBM
180 -02 injector
Ignition Integral Piezo Spark Integral Piezo Spark
Aeration See section 16.1 Non-adjustable

In Northern Ireland, the current edition of the Building regulations (Northern Ireland)
issued by the Department of
the Environment for Northern Ireland.
In the republic of Ireland the installation must be carried out by a competent person and
also conform to the relevant parts of:
a) The current edition of IS 813 “Domestic Gas Installations”
b) All relevant national and local rules in force.
Where no specific instructions are given, reference should be made to the relevant
British Standard Code of Practice.
3.2 In the United Kingdom, as supplied, the appliance can be installed in the
following situations: -
3.2.1 To a fireplace complete with surround and hearth as shown in figure 1 and
complying with BS1251 after removal of the fireback and sufficient material behind the
fireback for a debris catchment space. The required fireplace, hearth, debris catchment
area and clearance dimensions are shown in figure 1.
3.2.1.1 ‘Hole-in-the-wall’ installations
It is recommended that a hearth should be installed as in figure 1.
If fitting a fascia that has
a firefront designed to sit
on a hearth, a reduced
depth hearth is
recommended. This is
necessary to support the
firefront. The heat engine
must be installed so that
distance from the base of
the fireplace opening in
the wall to the finished
floor level shall be at
least 100mm.
If fitting a fascia that
does not have a separate
firefront and a hearth is
not fitted, the heat
engine must be installed
so that distance from the base of the fireplace opening in the wall to the finished floor
level shall be at least 100mm. The minimum shelf height will have to be taken from the
base of the fireplace opening.
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INSTALLER GUIDE
Figure 1. Hearth and fireplace opening dimensions

3.2.2 To a fireplace
incorporating a metal flue box
complying with the
constructional requirements of
the current edition of BS715.
The dimensions of the flue box
must conform to those shown in
figure 2.
3.2.3 To a precast concrete or
clay flue block system
conforming to BS1289 with
dimensions as in figure 3. The
current versions of BS1289 and
BS EN 1806 recommend that
there should be an air space or
insulation between the flue
blocks and the plaster because
heat transfer may cause
cracking on directly plastered
flues. However, generally this appliance is suitable for installations under all
circumstances unless there is a history of cracking problems.
Remember that faults such as cracking may be caused by poorly built and restrictive
flues, e.g. mortar extrusions, too many bends, flue heights below three metres,
restrictive terminations etc.
3.2.4 If the fireplace opening is greater than the acceptable dimensions given in this
guide, do not use the back of a fire surround or marble to reduce the opening. This may
cause cracking of the surround back or marble.
3.3 Suitable flues and minimum flue sizes are as follows: -
It should be noted that, as with many appliances, sharp bends or horizontal runs in
metal flues at the top of the system can be a cause of problems in these types of
installation.
! 225mm x 225mm conventional brick flue.
! 175mm diameter lined brick or stone flue.
! 200mm diameter factory made insulated flue manufactured to BS4543.
! 175mm diameter flue pipe. See BS6461 Part 1 for suitable materials.
! Single wall, twin wall or flexible flue liner with a minimum diameter of 125mm.
The materials to be used are stainless steel or aluminium as specified in BS715. The
liner must be sealed to the surrounding area above the fireplace opening and to the top
of the chimney. An approved terminal must be fitted.
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INSTALLER GUIDE
Figure 2. Metal flue box dimensions

! A properly constructed
precast concrete or clay flue
system conforming to BS1289
or BS EN 1806. This system is
only suitable if the conditions
stated in section 3.2.3 are met.
3.4 The flue must conform to
BS 5440: Part 1 in design and
installation.
The flue, measured from the
bottom of the fireplace opening
to the bottom of the terminal,
shall be not less than 3m in
actual vertical height. When
calculated in accordance with
BS 5440: Part 1 Annex A, the
minimum equivalent height of
the flue shall be 2.0m of
125mm dia. flue pipe.
3.5 The flue must not be used
for any other appliance or
application.
3.6 Any chimney damper or
restrictor should be removed. If
removal is not possible, they
must be secured in the open
position.
3.7
If the appliance is intended to be installed to a chimney that was previously used
for solid fuel, the flue must be swept clean prior to installation. All flues should be
inspected for soundness and freedom from blockages.
3.8
If the fireplace opening is an underfloor draught type, it must be sealed to stop any
draughts.
3.9 The appliance must be mounted behind a non-combustible hearth (N.B.
conglomerate marble hearths are considered as non-combustible). The appliance can be
fitted to a purpose made proprietary class “O”-150°C surround. The hearth material
Page 8
INSTALLER GUIDE
Figure 3. Precast or clay flue block system

must be at least 12mm thick. The periphery of the hearth (or fender) should be at least
50mm above floor level to discourage the placing of carpets or rugs over it.
The surface of the hearth must be sufficiently flat to enable the bottom of the fascia and
the firefront to be aligned horizontally. Any excessive unevenness (uneven tiles,
Cotswold stone, etc.) should be rectified.
The appliance must not stand on combustible materials or carpets.
3.10
The front face of the fireplace should be reasonably flat over the area covered by
the convection box top and side flange seals to ensure good sealing. These faces should
be made good if necessary. The fireplace floor should be reasonably flat to ensure that a
good seal with the convection box can be made.
3.11 The minimum height from the top surface of the hearth to the underside of any
shelf made from wood or other combustible materials is shown below: -
•For a shelf up to 150mm deep
Minimum height = 760mm.
•For a shelf deeper than 150mm
Minimum height = 760mm + 12.5mm for every 25mm depth over 150mm.
(See graph 1).
3.12 Note that soft wall coverings (e.g. embossed vinyl, etc.) are easily affected by
heat. They may scorch or become discoloured when close to a heating appliance. Please
bear this in mind when installing.
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INSTALLER GUIDE
Graph 1. Combustible shelf clearances.

3.13
This appliance must not be installed in any room that contains a bath or shower or
where steam is regularly present.
3.14
An extractor fan may only be used in the same room as this appliance, or in any
area from which ventilation for the appliance is taken, if it does not affect the safe
performance of the appliance. Note the spillage test requirements detailed further on in
this manual. If the fan is likely to affect the appliance, the appliance must not be
installed unless the fan is permanently disconnected.
3.15 Normal adventitious ventilation is usually sufficient to satisfy the ventilation
requirements of this appliance. In GB reference should be made to BS 5871 Part 2 and
in IE reference should be made to the current edition of IS 813 “Domestic Gas
Installations” which makes clear the conditions that must be met to demonstrate that
sufficient ventilation is available.
3.16
Propane gas appliances must not be installed in a room that is built entirely below
ground level (See BS 5871 Part 2).
3.17 If the appliance is to be fitted against a
wall with combustible cladding, the cladding
must be removed from the area covered by
the fascia. The cladding must also not touch
the fascia (See figure 4). We suggest that the
fascia is used as a template to mark the area
for combustible cladding removal and that
this area is increased by at least 2mm all
round.
3.18 The minimum allowable distance from
the outside of the fascia to a corner wall
having combustible material or any other
combustible surface which projects beyond
the front of the appliance is 100mm.
A 10mm access clearance from a non-
combustible surface is necessary at both
sides.
3.19 Proprietary terminals must comply with BS 715 or BS 1289. Any terminal or
termination must be positioned in accordance with BS 5440 Part 1 to ensure that the
products of combustion can be safely dispersed into the outside atmosphere. Where the
appliance is connected to an unlined brick chimney it is generally unnecessary for the
Page 10
INSTALLER GUIDE
Figure 4. Removal of combustible
cladding (fascia may differ to that
shown).

chimney pot to be replaced or for a terminal to be fitted unless the flue has a diameter
smaller than 170mm.
3.20 The appliance is fitted with an A.S.D (Atmosphere sensing device). If the
appliance closes down after a period of operation for no apparent reason, the consumer
should be informed to stop using the appliance until the installation and appliance have
been thoroughly checked. The A.S.D will shut the appliance down if an unacceptable
amount of harmful products of combustion accumulate. Under no circumstances should
the A.S.D be altered or bypassed in any way. Only a genuine manufacturers replacement
part should be fitted. The individual A.S.D components are not replaceable.
3.21
A fireguard complying with BS 8423 should be fitted for the protection of young
children, the elderly, or the infirm.
4. PACK CONTENTS
(See figure 5)
Appliance contains:
1Burner and convection box unit.
1Nut and olive for 8mm inlet pipe.
1Inlet ‘T’ connector and pressure test point.
1Flue restrictor plate.
3Screws (For fitting the flue restrictor).
2Fireback spacing brackets.
2Screws (For fitting the fireback spacing brackets).
1Rear ceramic wall support bracket
2Screws (For fitting the rear ceramic wall support bracket).
1Ceramic back wall.
1 Pair of ceramic side walls.
2Small “U” seals for the convection box side flanges.
1Strip of floor sealing tape.
6Fibre wall plugs.
4Woodscrews.
2Fire retaining cables.
2Cable clamps.
4Eyebolts.
1Rubber grommet.
1Smoke match tube.
1Length of self adhesive foam seal.
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INSTALLER GUIDE

1
Canopy shield (This may be supplied with either the fascia or the convection box)
3Screws (For fitting the canopy shield).
2 Machine screws (For fascia securing)
1Ceramic fuel effect (Not shown).
1Literature pack.
Carefully remove all the contents. Check that all the listed parts are present and in good
condition.
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INSTALLER GUIDE
Figure 5. Pack contents

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INSTALLER GUIDE
5. FIREPLACE CHECK
5.1 Fireplace check.
5.1.1 Fireplace size
The fireplace must comply
with the requirements
described in section 3.2.
This will probably entail
removing the fireback and
infill material behind the
fireback. The debris
catchment area shown in
figure 6 must be kept clear
of obstructions.
5.1.2 Fireplace general
condition
The fireplace floor should be
reasonably flat to ensure that
the convection box can be installed without it rocking and so that a good seal can be
made at the bottom front of the box. The front face of the fireplace should be reasonably
flat over the area covered by the convection box top and side flange seals to ensure
good sealing. These faces should be made good if necessary. If the appliance is to be
fitted against a wall with combustible cladding, the cladding must be removed from the
area covered by the fascia. The cladding must also not touch the fascia (See figure 4).
We suggest that the fascia is used as a template to mark the area for combustible
cladding removal and that this area is increased by at least 2mm all round.
5.1.3 Soundness for appliance attachment
Two primary methods of retaining the appliance are provided: -
1) By fixing to the fireplace front surround.
2)
Using concealed tension cables fixed to the rear of the fireplace opening together
with secondary fixing to the fireplace floor.
The methods are detailed in section 9 of this manual. Before selecting the retention
method, consult with the customer. Method 2 is provided for instances where drilling
holes in the front surface of the fireplace surround is unacceptable to the customer or
otherwise impractical. N.B. It is unwise to attempt to drill into marble without the
proper tools and equipment.
If method 1 is chosen, make sure that the front surround area is sound enough to take
the fibre wall plugs and woodscrews. If necessary, make sound with a suitable cement.
If method 2 is chosen, make sure that the areas at the back and towards the centre of the
fireplace floor are sound enough to take the eyebolts and screws. If these areas have
Figure 6. Fireplace area.

deteriorated due to prolonged use, they should be made sound with a suitable cement.
5.1.4 Installations using a metal flue box
The whole of the top surface of the metal flue box must be covered with a 100mm layer
of mineral wool or equivalent insulation (See figure 2).
5.2 Fireplace flue pull.
Close all doors and windows in the room in which the appliance is to be installed. After
confirming with a match that smoke is drawn into the flue, light a 13 gram smoke pellet
and check that there is a definite flow through the flue. Verify outside that the smoke
exits from one terminal only and that the termination is suitable. Observe, where
possible, upstairs rooms and loft spaces for signs of escaping smoke indicating a
defective flue. If there is not a definite flow warm the flue for a few minutes and repeat
the smoke pellet test. If there is still no definite flow the flue may need remedial work –
Do not fit the appliance until there is a definite flow through the flue.
6. IGNITION CHECK
Before attempting to install, it is worth checking that the
ignition system performs satisfactorily.
Set the control knob to the off position.
Depress the control knob and rotate it anticlockwise to
the pilot ignition position. A 'click' will be heard as the
integral piezo operates. A spark should be seen between
the electrode and pilot tip. If there is no spark check the
following: -
! Ensure that the electrode lead is connected to the
terminal at the base of the electrode.
! If the above is correct, check for damage to the
electrode lead.
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INSTALLER GUIDE
Figure7. Ignition operation

7. GAS SUPPLY CONNECTION
A nut and olive are provided for an 8mm pipe inlet connection to the ‘T’ connector at
the bottom front of the appliance. The ‘T’ connector can be rotated to allow a
connection from any direction and includes a valve for isolating the gas supply and a
pressure test point.
The supply pipe must be rigid material. Flexible pipe must not be used.
Concealed supply pipe connection
If a concealed connection from inside the fireplace is required then, before the
appliance is fitted into the fireplace
it will be necessary to extend the supply line so
that it will project through the hole in the back of the convection box and run to the ‘T’
connector at the front. The pipe run from the supply line up to the rear opening in the
convection box must be kept away from the area which will be taken by the convection
box when it is installed (See figure 6).
Note that the centre of the appliance inlet ‘T’ connector is 25mm above the fireplace
floor. The inlet ‘T’ connector should be fitted to the supply pipe at this stage.
8. PREPARING APPLIANCE FOR INSTALLATION
IMPORTANT
Before continuing with the installation of this gas fire the aeration setting on
the burner must be checked. The aeration is factory set for use with a ceramic
pebble fuel effect. See section 16.1 (Servicing and parts replacement). Even
when supplied with a pebble fuel effect the aeration setting should be
checked.
1. Detach the burner unit from the
convection box by removing two screws
(See figure 8). Lift the burner unit clear.
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INSTALLER GUIDE
Figure 8. Burner attachment points

2. Fit the two “U” section seals to the bottom edges of the
convection box side flanges (See figure 9).
3. It is important that the grommet supplied in the loose
parts pack is fitted to the hole in the rear of the
convection box.
4. For concealed connection only:
Pierce the grommet to allow the pipe to pass through it. The
grommet should envelop the pipe. If the hole is larger than
the pipe, seal it with tape. Do not pierce the grommet
unless the supply pipe is to pass through it.
5. The appliance is supplied with two fireback spacers. Do
not fit the fireback spacers if the fire is to be installed into a
precast or clay flue block system as in section 3.2.2. These
should extend backwards to ensure sufficient clearance from
the back of the fireplace. Remove the label and retaining
screws from the rear sides of the convection box.
Position the fireback spacer as shown in figure 10.
Secure the fireback spacers using the screws removed
previously and the two supplied with the fire.
6. The heat engine or fascia will have a canopy shield
supplied with it. Fit this to the convected air outlet of the
appliance using the three self tapping screws supplied.
The design of the canopy shield may differ from that
shown (See figure 11).
7. This appliance is supplied with a rear ceramic support
bracket. Fit this using two screws supplied (See figure
12)
8.This appliance is supplied with a flue restrictor for use
where the flue draught is excessive. The restrictor must
NOT be fitted where a precast flue or a flue liner is used.
For all other installations the restrictor should be fitted.
There may however, be certain exceptional
circumstances where fitting the restrictor
causes the fire to fail the spillage test. In
such cases the restrictor will have to be
removed. After removal conduct the spillage
check again.
9. The restrictor is packed loose with the
appliance and is fixed with three screws (See
figure 13).
Page 16
INSTALLER GUIDE
Figure 11. Fitting canopy shield
Figure 10. Fireback
spacers
Figure 9. ‘U’ Seals

10. There is a length of self adhesive foam seal
supplied with the fire. This will need to be fitted
to the outer rear edges of the side and top
flanges of the convection box. Cut a 485mm
length of foam seal. Be careful not to stretch the
seal when measuring. Remove the protective
backing from the foam seal and fit this to the
rear of the top flange (See figure 14). Cut two
580mm lengths. Fit these to the rear outer edges
of the side flanges. Ensure that there is no gap
between the foam seals where they meet at the
top flange (See figure 14).
Page 17
INSTALLER GUIDE
Figure 14. Fitting the foam seal
Figure 13.Flue restrictor
Figure 12. Fitting the rear ceramic
support.

9. CONVECTION BOX INSTALLATION
9.1 Method 1 - Front fixing to fireplace surround.
1. Make sure that the fireplace front surround
area is sound enough to take the fibre plugs
and woodscrews. If necessary, make sound
with a suitable cement.
2. Place the convection box centrally in the
fireplace in the position in which it is to be
permanently installed. If a concealed
connection is being used, insert the convection
box into the fireplace feeding the supply pipe
through the pierced hole in the rear grommet.
3. Mark the fireplace front surround through
the four fixing holes in the side flanges of the
convection box (See figure 15).
4. Remove the convection box.
Drill four holes in the fireplace
front surround at the marked
positions using a no.12
masonry drill.
5. Insert a fibre plug into each
hole.
6. Place the convection box
back in position in the
fireplace.
7. Fit a woodscrew through
each hole in the convection box
flanges and tighten to seal the
box to the fireplace surround.
9.2 Method 2 - Cable
retention and floor fixing.
1. Make sure that the relevant
areas at the fireplace back or
floor are sound enough to take
the eyebolts and screws. If
these areas have deteriorated
due to prolonged use they
should be made sound with a
suitable cement.
Page 18
INSTALLER GUIDE
Figure 16. Eyebolt positions
Figure 15. Front fixing

Page 19
INSTALLER GUIDE
2. Drill four holes in the rear wall of the fireplace for the eyebolt plugs. The holes
should be drilled within the range of positions shown in figure 16 using a no.12
masonry drill. The holes should be equidistant each side of the centre line of the
fireplace to ensure that the appliance finishes centrally in the opening when tension is
applied to the cables.
3. Insert a fibre plug into each hole. Use the fibre plugs
supplied with this appliance - Never use plastic plugs
instead of the fibre plugs supplied. Screw the eyebolts
into the plugs. Make sure that the bolts are secure.
4. Place the convection box unit close to the fireplace
but allow sufficient access into the fireplace opening so
that the cables can be threaded through the eyebolts and
returned through the back of the convection box. If a
concealed connection is being used, insert the
convection box into the fireplace feeding the supply pipe
through the pierced hole in the rear grommet.
5. The convection box has two holes at each side of the
convected air opening. Insert one end of each cable (one
cable each side) from the back through the lower of the
two holes and return the end through the upper of the
holes (See figure 17). Give the cables a pull so that they
grip against the convection box flanges.
6. Thread the cables through the eyebolts. Return the
cables through the holes near the bottom of the convection
box back panel (See figure18) (For precast or clay block
flue systems return the cables through the slotted holes
in the side of the convection box).
7. Place the convection box fully back into the
fireplace opening so that it is sealed against the
fireplace front surround.
8. Drill a hole into the fireplace floor through each of
the two holes in the base of the convection box using a
no.12 masonry drill (See figure 19).
9. Insert a fibre plug into each hole. Use the fibre
plugs supplied with this appliance - Never use plastic
plugs instead of the fibre plugs supplied.Fit a
woodscrew in each plug and tighten.
Always screw the base into position before applying
tension to the cables. This will ensure a tight seal
between the top of the convection box and wall. Figure 19. Floor fixing
Figure 18. Cable route
Figure 17. Upper cable
retention

10. Fit a cable retainer over the bottom end of
each cable.
11. Pull each cable taut. Push the cable retainers
hard up against the back panel. The end of the
cable adjuster will pass into the hole. Tighten
the screws in the retainers so that they clamp the
cables in position. Apply tension to the cables
by turning the hexagonal adjusters by hand (See
figure 20).
12. Inspect the installation of the convection box
against the fireplace surround. If the convection
box is aligned squarely and the sealing is
satisfactory, fully tighten the cable retainers.
13. If the convection box is not correctly
aligned, release the tension on the cables by
slackening the screws and turning the hexagonal
adjusters fully anticlockwise. The convection
box should then automatically realign itself. Pull
each cable taut again and push the cable
retainers back against the back panel. Again,
tighten the screws in the retainers and apply
tension to the cables by turning the hexagonal
adjusters clockwise as far as possible.
14. Feed the free length of the cables into the
gap between the inner and outer back panels so
that they are available to allow easy removal
and refitting of the appliance during
subsequent service calls. Do not cut off the
free lengths of cable. On precast flue
installations feed the cables into the small
holes at the base of the side panels (See figure
20)
9.3 Sealing floor front - all installations.
Using the floor sealing tape supplied, seal the
bottom of the convection box to the fireplace
and hearth floor (See figure 21).
Make sure that the whole length of the front edge of the convection box is fully
sealed.
Page 20
INSTALLER GUIDE
Figure 21. Floor sealing
Figure 20. Lower cable retention
Side entry
Rear entry