WANDERS Marvic MF Cassette Operating manual

1
Marvic MF Cassette
Instructions for Use,
Installation and Servicing
For use in GB & IE (Great Britain and Republic of Ireland).
IMPORTANT
This appliance will become hot whilst in operation, it is therefore
recommended that a suitable guard should be used for the protection
of young children, the elderly or infirm. Do not attempt to burn rubbish
in this appliance.
Please read these Instructions carefully before installation or use.
Keep them in a safe place for future reference and when servicing the
fire.

2
APPLIANCE COMMISSIONING CHECKLIST 4
General Points 5
USER INSTRUCTIONS 6
Using the Appliance for the first time 7
Lighting the appliance 9
Running the appliance 9
Recommended Fuels 10
Ash Removal 12
Burning Tips 13
TECHNICAL SPECIFICATION 14
INSTALLATION INSTRUCTIONS 21
COMMISSIONING 24
MAINTENANCE and SERVICING 25
SPARE PARTS 26
WARRANTY 27

3
Dear Client,
Congratulations on your new stove, which will be a comfortable source of heat to enjoy for many years
on end.
When designing this fireplace we took particular care regarding the ease of use, the operational safety
and the design. The Marvic is developed and produced at our own factory in Netterden (the
Netherlands) and is designed with the technical assistance of ACR heat products ltd Birmingham UK
and for the greater part handmade. Only the best materials are used for the construction and comply
with current international standards. This will guarantee that your stove has a long life.
The first part of this user’s guide gives you tips and directions about how to use your stove correctly
and safely. The second part of the manual contains the installation instructions and the technical
specifications of the Marvic. They are of particular importance to the installer.
We advise you to read this manual thoroughly before using your new stove and to keep the manual in
a handy place. Your installer may need the manual for the yearly maintenance of your fireplace.
We wish you much warmth with your new fireplace!
The WANDERS team

4
APPLIANCE COMMISSIONING CHECKLIST
Dealer appliance was purchased from
Name:
Address:
Telephone number:
Essential Information
-
MUST be completed
Date installed:
Model Description:
Serial number:
Installation Engineer
Company name:
Address:
Telephone number:
Commissioning Checks (to be completed and signed)
Is flue system correct for the appliance yes no
Flue swept and soundness test complete yes no
Smoke test completed on installed appliance yes no
Spillage test completed yes no
Use of appliance and operation of controls explained yes no
Clearance to combustible materials checked yes no
Instruction book handed to customer yes no
Signature: name:

5
General points
1: Before installation and/or use of this appliance please read these instructions fully and
carefully to ensure that you have fully understood their requirements.
2: The appliance must be fitted by a registered installer, or approved by your local building
control officer.
3: All local regulations, including those referring to national and European Standards need to
be complied with when installing the appliance.
4: Only use for domestic heating in accordance with these operating instructions.
5: You must burn only approved fuels. Do not use with liquid fuels or as an incinerator.
6: Appliance surfaces become very hot when in use. Use a suitable fireguard if young children,
elderly or infirm persons are present.
7:Do not place combustible items on the wall or near the appliance. Exposure to hot
temperatures will cause damage. Do not place furniture or other items such as drying clothing
closer than 1m from the front of this appliance.
8: Extractor fans or cooker hoods must not be placed in the same room or space as this can
cause appliance to emit fumes into the room.
9: Do not obstruct inside or outside ventilation required for the safe use of this appliance.
10: Do not make unauthorized changes to the appliance.
11: The chimney must be swept at least once a year.
12: Do not connect, or share, the same flue or chimney system with another appliance.
13: it is important to follow these instructions in order to achieve clean burning and to
maximize the efficiency from the stove.
14: You must burn only approved fuels. Do not use with liquid fuels or as an incinerator.
15:The Marvic is capable of intermittent burning

6
User instructions
1: Primary Air - burns the fuel under the fuel
bed. For use with solid fuel and initially with
wood fires.
Push in to close pull out to open
O=open
C=closed
2: Air wash - air drawn over the window
cleans the glass. The source of Primary
Combustion air when burning wood.
Push in to open pull out to close
Door handle
Use a protected gloved hand to operate.
To open the door:
1: Pull the lower portion of the handle
To close the door:
2: Hold the handle in the open position and
push the door to the closed position
3: Rotate the handle to the vertical position
C
O
O
C

7
warning
Properly installed, operated and maintained this appliance will not emit fumes into the room.
Occasional fumes from de-ashing and refueling may occur.
Persistent fume emission is potentially dangerous and must not be tolerated.
If fume emission does persist:
•Open doors and windows to ventilate the room
•Allow fire to burn out or safely dispose of fuel from the appliance
•Check for chimney blockage and clean if required
•Do not attempt to relight until the cause of the emission has been identified and corrected
If necessary seek expert advice.
•All open flue appliances can be affected by temporary atmospheric conditions which may allow
fumes to enter the house. Because of this it is recommended that an electronic carbon monoxide
detector conforming to BSEN50291 be fitted and maintained.
First time use
1: To allow the appliance to settle, and fixing glues and paint to fully cure, operate the appliance at
alow temperature for first few days.
2: Do not touch the paint during the first period of use.
3: During this time the appliance may give off some unpleasant odours. Keep the room well ventilated
to avoid a build-up of fumes.
Wood Logs
Burn only seasoned timber with a moisture content of less than 20% and a length of 250mm. To
ensure this allow cut wood to dry for 12 to 18 months.
Poor quality timber:
Causes low combustion efficiency
Produces harmful condensation
Reduces effectiveness of the air wash and life of the appliance
Do not burn construction timber, painted, impregnated / treated wood, manufactured board
products or pallet wood.

8
Solid fuel
To burn smokeless fuels it is required to fit a multi fuel kit.
This is fitted by replacing the parts on the bottom of the combustion chamber in the order shown.
Burn only anthracite or manufactured briquette smokeless fuels listed as suitable for use with
closed heating appliances
Do not burn bituminous coal, ‘petro-coke’or other petroleum based fuels as this will invalidate
the product guarantee.

9
Lighting the appliance
For best results set air controls
primary air open and air wash
completely open
Place firelighters and two hands full
of dry kindling wood on the grade
Light the firelighters,
Leave the door slightly open as the
fire establishes and the glass warms
to avoid buildup of condensation.
after several minutes the fire bed is
dying back at this point you place
lager pieces of wood on the fire approximately 1 kg leave the air controls unaltered when
these logs are well alight place two more logs onto the fire approximately 1,4 kg the air
controls and the door being in the same position as before after about 20 minutes from the
start close the door and primary air control.
Do not overload the fire ensure that the top of the logs are no higher than and do not obstruct
the rear holes
Close the door do not leave the door open as this could over-fire and damage the appliance.
Refueling
after refueling set the door on the
latch but not closed. the primary
air set fully open and the
secondary air set in the required
position after 5 minutes when the
logs are burning well close the
door and the primary air supply.
You can close the grate by using the tool that is supplied with the stove
Close the Primary air control and use the Air wash to control the burn rate when appliance is at
operating temperature,
Wood burns best on a bed of ash.
Burn new logs at high output for a few minutes before adjusting the Air wash control. Refuel little and
often for clean, burning.
When in use, burning the appliance at high output for a short period also reduces tars and soot.

10
If a chimney fire occurs:
Shut all air controls immediately.
Evacuate the building.
Call the fire brigade.
Do not re-enter the building until it is confirmed safe.
Do not use the appliance after a chimney fire until:
It has been inspected by a registered installer, confirming the appliance is safe to use.

11
Burning Solid fuel
open the grate by using the tool that is
supplied with the stove
For best results set air controls primary
air open and air wash open
Open the Primary air control fully to
establish a glowing bed before adding
new fuel
Burn new fuel at high output for a few
minutes before adjusting the primary air
control to the desired setting
Refuel little and often for clean, efficient burning.
Do not burn large amounts of fuel with the Primary Air Control on low settings for long periods of time.
This reduces the glass cleaning effect of the air wash and causes tars and soot to build-up in the
appliance and flue system.
When in use, burning the appliance at high output for a short period also reduces tars and soot.
You must burn only anthracite or smokeless fuels suitable for use in closed appliances.
Do not burn bituminous coal, ‘petro-coke’or other petroleum based fuels as this invalidates
the product guarantee.
Fuel Quality Wood
Use wood with a moisture content of less than 20%. Seasoned logs have the bark beginning to lift and
peel away and cracks radiating from the center. They feel lighter than fresh cut wood of a similar size
and sound hollow when struck against each other. Logs should not feel damp.
Symptoms related to wet wood:
Difficulty starting and keeping a fire burning well
Smoke and small flames
Dirty glass and/or firebricks
Rapid creosote build-up in the chimney
Low heat output
Short burn times, excessive fuel consumption andblue/grey smoke from the chimney
Burn at high output for a short period each day to avoid large build-ups of tars and creosote within the
appliance and the flue system.
.

12
Fuel Quality Solid Fuel
Use recommended solid fuels approved for use with closed appliances.
Symptoms related to unsuitable fuels include:
Difficulty starting and keeping a fire burning well
Smoke and small flames
Dirty glass and/or fire bricks
Short life span for grate and baffles
Permanent staining of glass
Flue Draught
The chimney has two main functions:
To safely remove the smoke, gases and fumes from the house.
To provide a sufficient amount of draught in the appliance ensuring the fire keeps burning.
Draught is caused by the rising hot air in the chimney when the appliance is lit.
Symptoms of poor performance related to flue draught include:
Excessive fuel consumption (high flue draught)
Poor burning control, overheating (high flue draught)
Wind noise from air controls (high flue draught)
Difficulty getting a fire going and keeping it burning well(low flue draught)
Low heat output (low flue draught)
Smoke entering room when doors opened (low fluedraught)
The construction, position, size and height of the chimney all affect the performance of the flue
draught.
Other factors affecting the flue draught include:
Trees or other buildings nearby causing turbulence
High and gusty winds
Outside temperature
Outside weather conditions
Incorrect additional ventilation to building
Blocked flue / chimney

13
Your installer should advise you on possible solutions.
If the appliance emits smoke into the room continuously:
Close the air controls and allow the appliance to go out
Ventilate the room to clear the fumes
Leave the room
Do not re-light the appliance until the problem is solved.
Ash removal
Open door.
Remove ash pan.
Cover it by using the supplied ash pan
cover.
Remove ash carefully - heat can remain
long after use.
Do not place hot ash in a bin made from
combustible material.
Chimney sweeping
To maintain safe and efficient use of the appliance, the chimney/flue must be inspected and swept at
least once a year by a qualified chimney sweep.
If the appliance is used continuously throughout the year, or it is used to burn wood, more frequent
sweeping is recommended.
The best time to have the chimney swept is at the start of the heating season.
The chimney, any connecting flue pipe and the appliance flue ways, if incorporated, must be regularly
cleaned.
If the chimney is believed to have previously served an open fire it must be swept extra careful.
This should be done by a registered chimney sweep, who will issue you with a certificate.

14
Stove glass blackening
This has four possible causes:
Incorrect use of Air wash
See User Instructions.
Burning unseasoned wood
See User Instructions
Stove operated at too low a temperature
Failing to close down the Primary Air Control once the appliance has heated up to this range may
cause the appliance to exceed the ideal temperature range and to over-fire. Over-firing can cause
permanent damage to the appliance and invalidates your warranty. Burn with the Air wash Control fully
open for approximately 20 minutes to cure this.
The problem may be caused by damping down the appliance during periods of extended burning.
Problems with the flue, in particular insufficient air pull.
If the flue is not working efficiently the glass can blacken. A flue which has too much downdraft may be
too short, needs lining, or has too many bends. This can also cause blackening of the stove glass.
Contact the installer or a flue specialist for advice.
Appliance is producing tar
This can be identified by:
very strong pungent smell shortly after the appliance is lit and heats up.
Glass blackening.
This is caused by burning damp wood and running the appliance at too low a temperature.
Use well seasoned wood and operate the appliance within the ideal temperature range.
Tar is a major cause of chimney fires. If the appliance experiences problems with tar build up consult a
chimney sweep before continued use of the appliance.
In the unlikely event of a problem that cannot be solved by these tips contact your installer or dealer
for help.

15
Technical specification
Nom heat
output efficiency CO emission At 13% O² Flue gas temperature Flue gas Mass flow
Wood 4,8 kW 78,1% 0,27% 258ºC 4,5 g/s
Ancit 4,5 kW 70,8% 0,04% 318ºC 4,1 g/s
Distance from combustibles Shelf 575 mm
Side 300 mm
Refuelling interval Wood Ancit
1 h 1 h
mass of the Marvic 65 kg

16

17
The flue or chimney system must be in good condition.
It must be inspected by a competent person and passed for use with the appliance before installation
Products of combustion enteringthe room can cause serious health risks.
You must check the following:
The construction of the masonry chimneys, flue block chimneys and connecting flue pipe system must
meet the requirements of the Building Regulations
A flexible flue liner system certified for use with solid fuel systems and installed to manufacturer’s
instructions and Building Regulations should be used.
Theflue liner must be replaced when an appliance is replaced unless proven to be recently installed
and in good condition.
The minimum height of the flue or chimney must be 4.5m from the hearth to the top of the flue, with no
horizontal sections, a maximum of 3 bends with angles of less than 45 degrees
Ensure the connecting flue pipe is kept a suitable distance from any combustible material and does
not form part of the supporting structure of the building
Make provision to remove the appliance without the need to dismantle the chimney
Any existing flue must be confirmed as suitable forthenew intended use as defined in the Building
Regulations.
The flue or chimney systems must be inspected and swept to confirm the system is structurally sound
and free from obstructions.
If the appliance is believed to have previously servedan open fire the chimney must be swept a
secondtime within a few months of regular use after installation to clear any soot falls that may
occurred due to difference in combustion levels.
The flue exit from the building must comply with local building control rules.
Do not connect or share the flue or chimney system with another heating appliance
You must sweep and inspect the flue when the appliance is installed.
You must check the flue draught with all windows and doors closed and any extraction fans in this or
adjoining rooms running at maximum speed.
Max. Draught = 2.0mm Wg
Min. Draught = 1.5mm Wg

18
The chimney flue must always end up in outlet area 1 (see the drawing and the table below)
Roof slope x larger than 23° Roof slope x smaller than23°
Ventilation :
For satisfactory appliance operation with a natural draught, check that sufficient air for
combustion isavailable in the room.
This appliance has a nominal output not exceeding 5kW (and therefore does not normally
require any additional permanent ventilation) but spillage is detected when commissioning the
fire, there may be insufficient natural ventilation and additional ventilation may be required.
Height of chimney on the roof at a horizontal distance A measured from the ridge
Roof with
slope X Horizontal distance A from the ridge, in metres
On the
ridge 0.5 m 0.75 m 1 m 1.25 m 1.5 m 2 m 3 m 4 m
25
o
0.5 0.75 0.85 1.0 1.1 1.2 1.6 2.5 3.3
30
o
0.5 0.85 1.2 1.6 2.0 2.4 3.2 4.9 6.5
35
o
0.5 1.0 1.8 2.4 3.0 3.6 4.8 7.3 10
40
o
0.5 1.2 2.4 3.2 4.0 4.8 6.4 10 13
45
o
0.5 1.5 3.0 4.0 5.0 6.0 8.0 12 16

19
The appliance must stand on a
non-combustible constructional
hearth which is at least 125mm
thick with the minimum
dimensions as shown in
diagram. If it is to be fitted in a
raised setting consideration
may need to be given to
extending the depth of the
hearth to safely containing any
falling logs or embers.
The building must have a
suitable load-bearing capacity
for the hearth and appliance.
Consult a structural engineer
for advice before proceeding
When fitting into an existing hearth check:
That the appliance complies with current construction regulations and is at least the minimum sizes
shown
If there is no existing fireplace or chimney it is possible to construct a suitable non-combustible
housing and hearth setting. The flue must be installed in accordance with all local and national
regulations and current rules in force .
Check if adding a new chimney to your property requires planning permission
Some houses are built using a timber frame construction with high levels of thermal insulation. Isolate
the appliance from combustible materials, and provide sufficient ventilation to maintain the heating
efficiency.

20
Distance to combustible material
All parts of the studwork
must be non-combustible
for example metal
studding.
Do not use combustible
materials within the
dimensions as shown in
the diagrams on this
page.
Fill the space around the
appliance not with
insulation material.
The space built for the appliance must be ventilated to prevent a buildup of heat. If the space is sealed
then you must fit vents at both low and high levels of approximately 50cm2 each. These vents must
take cold air from the room and return warm air back into the room.