My friends need a boiler to replace the conventional floor mounted one
which works the central heating and the hot water system. The HW is
gravity fed and the CH is pumped round a single pipe system of
radiators. It's a fair sized 3 bedroom detached house.
They'd like a wall mounted one but one quote says they can't have a
gravity fed HW system wall mounted. Any idea why he'd say that?
They also thought about getting a combi boiler as the idea of always
having hot water available sounded good but on the minus side they've
1) combi boilers don't last very long - maybe 5 years or so.
2) In a hard water area, having mains water run through the heat
exchanger doesn't do them much good either.
3) Some people say you can't have a combi with a single pipe system (for
Is that right? They're aware of the other things like only one hot tap
at a time and reduced flow but it's these points that sound worse as
they don't want to have to get a new boiler that often. The
conventional one in there has been there for decades.
Don't know if it matters they have a conservatory so the flue would have
to be angled so it goes out through the wall and up through the
conservatorey roof as it does at present.