Do my numbers look on the low side? The boiler sticks out 30kw CH against my estimation of 19kw, so I figure that even if I'm out by a huge margin then I'm still on the safe side. And when I did my calcs I was pessimistic about certain things (e.g. wall insulation - fairly sure they're all...
So I think I'm right in saying that this would only be an issue if you have the central heating and hot water on at the same time? If I stick the water on 30 mins before the heating (so the cylinder gets the full 30kw) then I'll be laughing?
I appreciate everyone's input!
However, I'm still no closer to choosing a boiler or having any idea what is suitable. Opinions range from 'it'll be perfect' to 'definitely not sufficient!'
I don't really understand the process - assuming my numbers in the opening post are correct, will the...
They do a system version I believe;
Greenstar i System (27kW and 30kW) | Worcester, Bosch Group
Perhaps not quite finger in the wind, it seems a fairly detailed estimate using this calculator;
Calculate heat requirements
Now we have a conventional boiler, we are changing to a system boiler and getting rid of the cold water tank.
We need various bits of pipework doing at the same time so the added complexity of a system boiler doesn't really matter.
Evening all,
Our boiler hasn't been doing very well recently. Just doesn't get the radiators hot at all. It was a relic of a smaller house, which was then extended. They didn't replace the boiler.
We've decided to replace the boiler and sort out some pipework, install new valves etc, but I...
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