Hi, I have a Y plan open vent system, boiler 30+ years old, and requires replacement. My plumber is recommending fitting a new Viessmann 11kw System boiler in the current boilers position. The problem is he plans to run two new separate pipes fro the boiler to the hot water cylinder.
Once this...
I have a 3 port valve Y plan system, with a hot water tank in airing cupboard and a cold water feeder tank in loft. I want to replace the old 25+ year old boiler. Should I just replace with a like for like condensing boiler or a combi. I understand to fit a combi involves a lot more work (more...