6
FDC 4, 5, 5W & 8
Issue 05 10/14
Due to the fact that combustible shelves, timber fireplaces and beams have potentially
thousands of possible configurations in conjunction with stoves outset or inserted
partially or fully into chambers, it is not possible to give firm guidance on dimensions to
these features. As a guideline, materials that are in ‘line of sight’ to the stove are more
likely to overheat due to direct radiation from the stove body than materials that are not
in ‘line of sight’ (e.g. with stove fully inside a chamber). Materials above the stove are
more likely to overheat than materials alongside or below. A guideline limiting
temperature for solid timber (not surface finishes) is approximately 80-85 degrees C with
a normal ambient room temperature. Temperatures of combustible materials can be
substantially lowered with a simple heat shield constructed of a non-combustible
material and small air gap between the shield and combustible material.
Distances from NON-combustible materials:
The stove can be recessed in a suitable sized non-combustible fireplace but a
permanent free air gap of at least 50mm must be left around the sides and top and at
least 50mm at the back of the stove to obtain reasonable heat output and for access to
the stove for removal and maintenance. A clearance of 150mm will give a better heat
output
All non-combustible walls closer than 400mm to the stove should be at least 75mm
thick. For practical reasons the back wall of the fireplace recess and the hearth should
ideally be made of non-combustible material.
4.6 Hearths:
These freestanding stoves do not require a constructional hearth beneath them as they
do not cause the floor temperature to exceed 100 degrees C.
Note:
the optional solid
fuel hearth heat shield MUST be fitted when using smokeless or any coal fuels to
ensure compliance with this requirement. In any case a non-combustible superimposed
hearth extending fully underneath the stove and forming an apron of at least 225mm at
the front of the stove and 150mm on either side must be provided. The superimposed
hearth must not be less than 12mm thick and must have a clearly defined edge (change
of level) to discourage placing of any combustible materials on or partially over it.
Hearths must be level.
The appliance shall be installed on a floor with adequate load-bearing capacity. If the
existing construction does not meet this requirement, suitable measures (e.g. load
distributing plate) should be provided to achieve it.
4.7 Commissioning and Handover
A CO detector must be fitted in the same room as the stove according to current
standards or codes of practice. Advise the customer of the importance of this device and
maintaining it.
If the stove is to be used with smokeless fuel exclusively then the solid fuel fitting kit
(supplied separately) must be fitted to the stove according to the instructions supplied
with it.
Upon completion of the installation, allow a suitable period of time for any fire cement
and mortar to dry out. A small fire may then be lit and checked to ensure the smoke and
fumes are taken from the stove up the chimney and emitted safely to atmosphere.
Advise the customer not to run the stove at full output for at 3
– 4 days. Explain that the
stoves can provide much more or less than their rated heat outputs depending upon
how they are burnt and fuels and fuel loads used.