© MHG Heating Ltd
MHG Heating Ltd, Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey, KT20 5LR
P:0845 6448802 F:0845 6448803 E:
W: www.mhgheating.co.uk
010617
18
9.0 Fluing Options
Please note that excessive resistance within the flue and combustion air supply
systems will lead to a reduction in the output of the appliance and induce operation
faults.
Boiler Type
Flue Outlet Size
Flue Size
Maximum Length
Flue and Combustion Air Ducts
CombinedMust Not Have a Resistance
of Greater Than 150Pa Max.
ProCon 150
DN 160
DN 160
28m
ProCon 225
DN 160
DN 160
23m
See section 19 for a full list of DN160 flue components
9.1 Single ProCon HT Conventionally Flued
9.2 Single ProCon HT Balanced Flued
Please note: The combustion air duct must have a resistance no greater than 100Pa