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8.1.2 Condensing Boiler Flue Kits
FIRE SAFETY
As with a metal flue system, where a plastic flue system is used within a building
which is ‘compartmentalised’ as defined by the Building Regulations, care must be
taken to ensure that the installation of the flue does not contravene the
Regulations and create a safety risk.
In particular, where the flue passes through a ‘compartment floor’ or ‘compartment
wall’ as defined by the Building Regulations it must be enclosed so as to create a
‘protected shaft’ as defined by the Regulations. Consult your local Building Control
department for detailed guidance.
In regard to the above, the use of a plastic flue system is no different from that of
a metal flue system. If in doubt, consult your local Building Control department.
8.1.3 Fit Flue Thermostat
1. Remove the test point bolt from the boiler. Apply PTFE tape to the flue
thermostat threads (1) then screw it into the test point (2). Tighten by hand only.