Recent content by lbutton

both working fine. hence the new one fitted, because the old didn't!

OK. The system is a gravity fed system which explains in my set-up why I can't have heating without HW. There is no cylinder thermostat, instead there is a water temp. control on the boiler. Don't know how good or accurate this is. The first pump is on the HW circuit, the second (just...

Sorry, I think i misunderstand you. I definitely don't want to waste your time. I can post a picture somewhere if you like? What info do you need on how it is supposed to work? The second pump is for the CH. Which is why I can't understand the first pump being connected to the same pipe...

On my timer near the boiler, downstairs, beneath the cylinder I can select for 'HW' or 'CH and HW'. I can't put the CH on without the HW. The first pump, nearest the cylinder has 'Hot Water' written on it (only found when i cleaned the dust off!). I'm trying to understand.... 1) Why I...

Thanks for your interest. It is a standard 'grade 3' copper cylinder. There is a pipe into the top from the water supply. A pipe from the middle(ish) comes out in a 'T', right to a Grundfos 15-50, left to water supply (water tanks are directly above cylinder.) The pipe out of the pump...

Well, I'm stuck! There are two pumps near my hot water tank on the same pipe source. The upstairs bathroom radiator gets warm when the HW is on and the CH is off (gravity valve?). Only the upstairs bathroom radiator gets warm when the CH is on and nothing else, not even the pipes warm up...