Established 1906
Fitting Instructions
Fitting Instructions
W T Knowles & Sons Limited
Ash Grove Pipe Works
Elland
West Yorkshire
HX5 9JA
www.wtknowles.co.uk
Code No: KNODFE5
DFE Double Combi Gas Terminal
July 2018: Issue 2
©
WT Knowles & Sons Limited 2018
DFE Double Combi Gas
Terminal KNODFE5
Flaunching
Damp Proof
Course
Mortar
Flaunching
Light Weight
Insulating Mortar
Flue Liner
Mortar bed
Instructions
•
The Installer is reminded that The Building Regulations: Approved Document J will apply to
the fitting of a flue terminal facility in respect of height and position.
•
A chimney pot should always be used to obtain a satisfactory chimney performance. The
chimney should not be terminated with just a mortar flaunching.
•
Inspect the gas terminal top and base to confirm they are undamaged and ensure the gas
terminal is suitable for use with the flue system and the type of fire installed.
•
Inspect the chimney stack for cracks and repair any defective mortar pointing. Check that
the flue liner is sound and totally clear of debris. Any mortar ingress into the flue liner should
be wiped clean to ensure a smooth passage for the flue gases and for sweeping.
