Hi,
My central heating system has a Baxi Bermuda LFE5 Super back boiler, 10 rads. Gravity hot water, pumped heat. When we moved in there were no thermostats, (only the boiler stat). I put in a room stat 3 yrs ago, and it all works ok except that the boiler seems to spend a lot of time cutting in and out, which is not only annoying, but seems to me to indicate something's wrong. (?) I wired the stat so that it cuts the supply to boiler and pump to avoid dry cycling. (Is that right??)
Anyway, I thought I'd upgrade the system with a new boiler in the kitchen or a combi in the airing cupboard. I've had 2 recommended C/H people have a look but neither of them came back with a quote.
One said some of the ground floor pipes are under the concrete floor so a combi is out, and that the pipework is a mixture of one-pipe and two-pipe.
Well, okay, that can be fixed. I can do that. And I could install one of those Y Plan control sets, and keep the existing boiler? Would that be better?
Having said that, I see there are 4 pipes in and out of the boiler, and with the Y Plan I'd only need one Feed and Return; could anyone explain that for me?
Any advice would be greatly appreciated.
My central heating system has a Baxi Bermuda LFE5 Super back boiler, 10 rads. Gravity hot water, pumped heat. When we moved in there were no thermostats, (only the boiler stat). I put in a room stat 3 yrs ago, and it all works ok except that the boiler seems to spend a lot of time cutting in and out, which is not only annoying, but seems to me to indicate something's wrong. (?) I wired the stat so that it cuts the supply to boiler and pump to avoid dry cycling. (Is that right??)
Anyway, I thought I'd upgrade the system with a new boiler in the kitchen or a combi in the airing cupboard. I've had 2 recommended C/H people have a look but neither of them came back with a quote.
One said some of the ground floor pipes are under the concrete floor so a combi is out, and that the pipework is a mixture of one-pipe and two-pipe.
Well, okay, that can be fixed. I can do that. And I could install one of those Y Plan control sets, and keep the existing boiler? Would that be better?
Having said that, I see there are 4 pipes in and out of the boiler, and with the Y Plan I'd only need one Feed and Return; could anyone explain that for me?
Any advice would be greatly appreciated.