WESTFIRE · WF
17
· WF
18
· WF
19
6
WESTFIRE · WF
17
· WF
18
· WF
19
7
UK: INSTALLATION MANUAL AND OPERATING INSTRUCTIONS
–WESTFIRE
WF
17/UNIQ 17,WESTFIRE
WF
18 /UNIQ 18WESTFIRE
WF
19
This manual refers to the stove types listed abeove which have been tested in accordance with EN13240.
Congratulations on your purchase of a new wood burning stove from Westfire ApS. Please read this manual care-
fully in order to ensure that you get maximum enjoyment from your new stove and to prevent any problems.
For further information on installing and using fireplaces and wood burning stoves, please see the relevant bro-
chure on building regulations that applies to the country in which WF 17, WF 18 and WF 19 have been approved,
as well as the relevant brochure on the correct use of wood burning stoves available from your local stove sup-
plier or your chimney sweep.
INSTALLATION
GUIDELINES
You must comply with all applicable national and local building regulations when installing your wood burning
stove. Please see the applicable regulations for full details. The regulations state that flammable floors beneath
closed hearths must be covered by a fire-proof material that extends a minimum of 30 cm in front of the stove
opening and a minimum of 15 cm on either side. The fire-proof material may be e.g. a steel plate, a glass plate,
tiles or artificial slate.
The floor on which the wood burning stove is to be installed must be sufficiently strong to carry the weight of
the stove.
The minimum distances to flammable materials are specified on the EN 13240 plaque on the back of the stove.
There are no rules regarding the minimum distance to non-flammable walls, but we recommend leaving a gap of
at least 10 cm behind the stove to make cleaning easier.
Combustion requires air, and fresh air must therefore be available in the room in which the stove is installed. Air
inlets must be positioned in such a way that they cannot be blocked. An air inlet may be a vent (the vent must be
open and the capacity of the vent sufficient when the stove is lit) or a fresh air system linked to the stove.
All wood burning stoves from Westfire are fitted with a smoke plate which ensures that the distance
travelled by the smoke is sufficient.
CHIMNEY CONNECTION
The chimney to which the stove is connected must have a diameter of at least 15 cm, which corresponds to an
area of 175 cm
2
.
The chimney must be sufficiently long to provide a good chimney draft, and to ensure that the smoke from the
stove will not cause a nuisance. The chimney must be fitted with an easily accessible cleaning hatch.
Minimum draft: The stoves have been tested with a draft of 12 Pa. Max. draft 25 Pa.
Flue gas flow 4.2 g/sec.
Flue gas temperature 272°C.
WF 17, WF 18 and WF 19 are fitted with both a top and rear outlet.
The chimney may be equipped with a regulation damper in the flue pipe to allow the draft to be regulated on
windy days. The damper must not be able to close fully, and must have a clearance of at least 20 cm
2
of the total
clear opening of the pipe.
Other types of dampers may also be used, such as allowing air to enter the chimney by bypassing the stove.
OPERATING INSTRUCTIONS
The heat-resistant paint on the stove will harden the first time you light up the appliance. This process produces a
good deal of smoke and odour, and the room should therefore be well ventilated.
The stove door should be kept open during the first couple of firings and only closed once the stove has cooled
down to prevent the packing cord around the door from sticking and coming away from the door.
Once the heat-resistant paint has hardened,
the stove door must be kept closed
except when lighting the stove,
adding firewood or removing ash in order to prevent flue gas from escaping.
To light the stove
1. Place a few smaller pieces of dry wood (kindling) in the stove on top of the non toxic firelighters.
2. Fully pull open the air slider (secondary air) and the air slider on ash pan (it maybe necessary pull the ash pan
drawer open 1cm as well)
3. Light the firelighters close the door.
4. Once the fire has caught, add two pieces of wood measuring approx 20 cm with a combined weight of approx
1.4kg and close the door.
5. After approximately 5 minutes when the fire is burning brightly shut the air control on the ash pan.
6. After approximately another 7 minutes close the secondary air slider by 50% (50% open)
At nominal heat output, expect to refuel your stove approximately once an hour.
WF 17, WF 18 and WF 19 are designed for intermittent combustion (wood must be added often and the stove is
not designed for 24-hour use).
WF 17, WF 18 and WF 19 are equipped with a control valve for secondary air designed to ensure a plentiful
supply of oxygen during firing.
When lit, the stove will get very hot and due care must therefore be exercised. Please use a glove when
operating levers and dampers.
In the event of a chimney fire:
Close the air damper and the stove door, and call 999 or your local fire department.
BASIC POSITIONS OF DAMPERS DURING OPERATION
WF 17, WF 18 and WF 19 have been approved in accordance with EN 13240. The nominal heat output of this stove is 5 kW.
WF 17, WF 18 and WF 19 have a test weight of 83 kg.
You will need to become familiar with your stove in order to be able to regulate the secondary air intake correctly,
as factors such as the quality and height of your chimney, the quality of your fuel and the external conditions
play a large role. It is easy to see whether the stove is functioning correctly, however. Incomplete combustion
may lead to a build-up of hard, shiny soot on the inside of your stove. This is prevented by the introduction of
additional secondary air.
It is important to check the draft conditions before lighting your stove. This may be done, for instance, by crum-
pling a piece of newspaper, placing it in the combustion chamber and lighting it. The draft conditions are good if
the smoke is drawn away through the chimney.
FUEL
Never use toxic wood such as chipboard, impregnated or painted wood. Always use dry firewood. The dryness of
the firewood plays an important role since the use of wet wood results in poor fuel economy and may cause tarry
soot to form.
Newly cut wood contains 60–70% water, making it totally unsuitable for use as firewood.
Newly cut wood should be stacked and air dried under cover for two years before being used as firewood.
Secondary air
WF 17 /UNIQ17, WF 18/UNIQ 18, WF19
75 % open
UK
UK
Back(cm)
Side(cm)
Furniture in front (cm)
WF UNIQ 17 /18/ 19
17,5 cm
30 cm
85 cm
