11
AIR FOR COMBUSTION
Any room or space containing a stove should have a permanent air vent
opening of at least the sizes shown in the table below. For stoves designed to
burn a range of different solid fuels, the air supply should be designed to
accommodate burning the fuel that produces the highest heating output.
There must always be a permanent means of providing air for combustion
into the room in which the fire is installed. A permanent vent with a total free
area of at least 550mm
2
for every kW rated above 5kW should be connected
directly to the outside air or an adjacent room which itself has a permanent
vent of the same size direct to the outside air. The fitting of an extractor fan to
either of these rooms is not permitted.
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CONNECTION TO THE CHIMNEY
This MUST be carried out by an accredited/competent person and/or
approved by your local Building Control Officer before using the stove.
Any existing flue must be in good condition with suitable access for collection
and removal of debris. Details of suitable linings for use with solid fuel are
given in the Official HETAS guide that can be viewed on their website at
www.hetas.co.uk
It is also important that suitable flue pipe complying with Building Regulations
is used to connect the stove to the chimney flue and that suitable access is
provided into the flue for regular inspection and sweeping of the flueways.
Chimneys should be as straight as possible. Horizontal runs should be
avoided except where the rear outlet of the appliance is used, in which case,
the horizontal section should not exceed 150mm (6 inches) in length. Refer to
the typical installation diagrams, Fig 6-9. Flue connections must be well
sealed.