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Hi guys
House we've moved in to had a conservatory built over the existing vent four years ago!
We have a Potterton Housewarmer BBU and firefront.
What size vent would I need to fit into the conservatory dwarf wall to comply with legislation, please?
Segment from Potterton manual:
3.6 Air Supply & Ventilation
The ventilation of the room containing the boiler shall include air for combustion and draught diverter dilution. A permanent air vent must be fitted either directly to the outside of the building or into a room or space containing a permanent air vent of the same effective area. The air vent must not enter the room through the builders opening.
The minimum effective area of the air vent required is as follows:-
45 Back Boiler and Gas Fire: 73cm²
55 Back Boiler and Gas Fire: 89cm²
Any air grille and/or duct should be so sited and of a type not to become easily blocked or flooded and should offer low resistance to air flow.
If an extraction fan is fitted in any position which could affect the air supply to the boiler, then a spillage test with the fan running as detailed in BS 5440:1 must be carried out.
I will get in a gas pro as this set-up can't have been seen to in that time. Would hate to think it had and the ventilation overlooked!
Sleeved 100 x 100mm
Thanks in advance
UF
House we've moved in to had a conservatory built over the existing vent four years ago!
We have a Potterton Housewarmer BBU and firefront.
What size vent would I need to fit into the conservatory dwarf wall to comply with legislation, please?
Segment from Potterton manual:
3.6 Air Supply & Ventilation
The ventilation of the room containing the boiler shall include air for combustion and draught diverter dilution. A permanent air vent must be fitted either directly to the outside of the building or into a room or space containing a permanent air vent of the same effective area. The air vent must not enter the room through the builders opening.
The minimum effective area of the air vent required is as follows:-
45 Back Boiler and Gas Fire: 73cm²
55 Back Boiler and Gas Fire: 89cm²
Any air grille and/or duct should be so sited and of a type not to become easily blocked or flooded and should offer low resistance to air flow.
If an extraction fan is fitted in any position which could affect the air supply to the boiler, then a spillage test with the fan running as detailed in BS 5440:1 must be carried out.
I will get in a gas pro as this set-up can't have been seen to in that time. Would hate to think it had and the ventilation overlooked!
Sleeved 100 x 100mm
Thanks in advance
UF