hi all i have currently got a vaillant thermocompact 142 boiler fitted and wish to have it replaced with a similar type of boiler can anyone tell me if my pipework needs to be changed? i currently have 15mm gas feed to the boiler.
just trying to work out if im going to need to save a few more pennies or not.
thanks
sam
just trying to work out if im going to need to save a few more pennies or not.
thanks
sam