Flue and Chimney Requirements
BS 5440 : PART 1
Before installation of the appliance, the chimney or flue system must be inspected and passed as suitable.
In particular, the following should be checked:
a) This appliance is suitable for installation onto the following flue types:
A suitable sized diameter flexible or fabricated steel flue system (See appliance data for
flue size), or a precast flue system (See Technical Bulletin TB118).
b) We would strongly recommend that a flue liner is also fitted if being installed into an existing
chimney built with an integral clay liner.
c) If being installed into an existing masonry flue which has NOT been built with an
integral clay liner, a flexible flue liner MUST always be used to line the entire chimney.
NOTE:
Any steel flue systems used should be manufactured in line with the requirements of BS 715, and
installed with due regard to the manufacturers recommendations.
d) The chimney should be thoroughly swept prior to installation of the flue liner. However,
if the flue is clean and unobstructed throughout its entire length, it need not be swept.
e) The chimney or flue must be free from any obstruction. Any flue damper or restrictor
must be removed or permanently fixed in the fully open position.
f) The minimum effective height of the chimney or flue must be 10ft (3 metres) measured
from the hearth to the termination of the flue (chimney pot). If the flue has any non
vertical sections the height should be increased in line with BS 5440 : Part 1.
For further information see the Euroheat Flue Guide IN1087.
g) An approved gas flue terminal MUST be fitted in accordance to the manufacturers
recommendations.
h) Where required a closure plate, of a suitable non-combustible material should be fitted. This
should have an infill panel so as to facilitate removal of any debris that may fall down
the chimney. Even after sweeping soot or debris may continue to fall down the chimney.
Ventilation
BS 5440 : PART 2
Before proceeding further, the following ventilation requirements must be satisfied.
a) If the stove is installed in a builder’s opening or fireplace recess that has an air supply entering from below
floor level, or within the opening or recess, this must be completely sealed off.
b) If there is another gas appliance fitted in the same room, or adjacent area, or extractor fan system, air
conditioning, etc., it will be necessary to refer to BS 6714 and BS 5440 : Part 2 to ascertain the additional
precautions necessary.
If any of the pre-installation checks reveal inadequacies, the installation should not proceed until they are
rectified.
Do not fit the appliance, seek expert advice.