1.2 Flue & chimney suitability
This appliance is designed for use with conventional brick built or lined chimneys all flues must
conform to the following minimum dimensions
Minimum dimension of flues 125 mm
Minimum effective height of all flue types 3 metres
Before commencing installation, a flue or chimney should be inspected to ensure that all of the
following conditions are satisfied.
1.check that the chimney / flue only serves one fireplace and is clear of any obstruction, any
dampers or register plates must be removed or securely locked in the open position
2.brick/stone built chimneys or any chimney or flue which has been used for an appliance burning
fuel other than gas must be thoroughly swept.
3.any under floor air supply to the fireplace must be completely sealed off
4.ensure that the inside of the chimney / flue is in good condition along its length and check that
there is no leakage of smoke through the structure of the chimney / flue during and after the
smoke pellet test
5.using a smoke pellet check there is an updraft in the chimney / flue and that the smoke can be
seen coming from the terminal/ pot outside
There must be no leakage of smoke through the structure of the chimney during or after the
smoke pellet test and it is important to check the inside upstairs rooms adjacent to the chimney /
flue
Check the chimney pot / terminal and general condition of the brickwork and masonry. if the
chimney / flue is in poor condition or if there is no up-draught do not proceed with the installation,
if there is a history of down draught conditions with the chimney / flue,
A tested and certificated flue terminal or cowl suitable for the relevant flue type should be
considered
6.a spillage test must always be carried out during commissioning of this appliance
