Page 7
of 16
Distance to Non-combustible Materials
Stove
Distance From
Wall (x)
Minimum Wall
Thickness (t)
Minimum Wall Height (h)
0-50mm
200mm
300mm above height of
appliance and at least 1.2m
above the hearth
51-300mm
75mm
>300mm
No requirement At least 1.2m above the hearth
Stove clearances to
non-combustibles
125mm Flue Liner
It is recommended to fit with a
150mm liner for best performance,
however, If only dry wood or
anthracite is to be burnt on this
appliance then it is possible to fit
with a 125mm liner.
IMPORTANT:
if you intend to
burn unauthorised fuels on this
appliance then a 150mm liner
must be fitted and your lifetime
guarantee will be invalidated.
Your Fireplace
Stoves become very hot, the
setting must be made entirely of
durable fireproof materials. Thin
(<50mm) stone slabs risk cracking
unless cut into sections to allow
for expansion and backed with
a heat resistant concrete. Even
beyond the safety clearance,
items can become very
hot - take great care in siting
vulnerable materials like wax,
textiles, paper etc.
Air Supply
Your stove needs air to breathe –
there must be a permanent fresh air supply into the space in which it is installed equal to the size given
on page 1. This can often be provided by air leaking around door frames etc. (it is commonly accepted
that this alone may suffice for appliances <c5kW) but in case of any doubt, fit a purpose made air vent.
An extractor fan, or another fuel using appliance in the same building, can remove this air. Fit a Carbon
Monoxide alarm near to the stove.
Regarding installations in rooms with extractor fans
For solid fuel appliances: avoid installing extract ventilation in the same room. If mechanical extraction is
unavoidable then seek specialist advice to ensure the installation is tested for the safe operation of the
appliance.
A suitable test would be to check for spillage when appliances are subjected to the greatest possible
depressurisation. A prerequisite for this condition is that all external doors, windows and other adjustable
ventilators to outside are closed. The depressurisation at the appliance will depend on the particular
combination of fans in operation (fans in the room containing the appliance and fans elsewhere in the
building) and the pattern of open internal doors, hatches etc. which is established at the time of the
test (when fans should be on their maximum useable setting), and the specific combination causing the
greatest depressurisation at the appliance depends upon the circumstances in each case. Several tests
(which should include a test with the door leading into the room of installation closed and all fans in that
room switched on) may therefore be necessary to demonstrate the safe operation of the appliance with
reasonable certainty. The effect of ceiling fans should be checked during the tests. Extra ventilation should
be supplied if tests show that this is necessary.
