Hi All,
I need your advise as I'm really concerned here. I only just had regular boiler replaced with combi (Vaillant ecoFIT Pure 25kw). I had few surveys done and everyone stated the gas supply pipe from the meter to the boiler must be changed from current 15mm to 22mm. The plumber I used said there is no need for that if the gas pressure meets boiler requirements (13-23mbar), and what he's done, he ran like 2m od 22mm pipe from the boiler and then connected to existing 15mm pipe. The distance from the meter to boiler (horiz +vert) approx 8-9m. Gas pressure test hasn't been done yet.
Can anyone please confirm if this is correct, safe and legal? All the regulations I've read were saying only about 22mm pipe and nothing about the minimum pressure.
Boiler works fine, and to be honest I wouldn't mind if that was ok and could stay like that (what could save me running the new pipe outside or stripping the floor).
Thank you very much.
I need your advise as I'm really concerned here. I only just had regular boiler replaced with combi (Vaillant ecoFIT Pure 25kw). I had few surveys done and everyone stated the gas supply pipe from the meter to the boiler must be changed from current 15mm to 22mm. The plumber I used said there is no need for that if the gas pressure meets boiler requirements (13-23mbar), and what he's done, he ran like 2m od 22mm pipe from the boiler and then connected to existing 15mm pipe. The distance from the meter to boiler (horiz +vert) approx 8-9m. Gas pressure test hasn't been done yet.
Can anyone please confirm if this is correct, safe and legal? All the regulations I've read were saying only about 22mm pipe and nothing about the minimum pressure.
Boiler works fine, and to be honest I wouldn't mind if that was ok and could stay like that (what could save me running the new pipe outside or stripping the floor).
Thank you very much.