Firebird condensing boilers, when in condensing mode, extract more heat from the flue products and the resulting condensate which is mildly acidic, need to be drained from the boiler via a condensate pipe to the drainage system.
Provision must be made for the removal of condensate from the boiler to an internal soil stack, waste pipe, external soil stack, gully or soak-away as per 6798:2014
The condensate trap is provided with the boiler and situated on the front of the boiler (under the cleaning door). This should be checked at regular intervals and cleaned during annual service.
The condensate line should:
- Be plastic and have a minimum diameter of 22mm
- Have a fall from the boiler of 1:100 minimum
- Have as few bends as possible to reduce the risk of trapping condensate.
Always prime condensate trap with water
Copper or steel cannot be used.
Condensate pipework that is external or in an unheated gagage should not exceed 3 Metres and should be lagged with water proof insulation to prevent freezing.