Search results

Thankyou all. Two things are clear: 1) The pump should be placed on the boiler flow, not the return 2) An automatic bypass valve should have been fitted, instead of a gate valve @Dan. I can often hear there is air in the system when the pump is running. I regularly have to try and clear it by...

i am hoping someone can help me. I am an enthusiastic DIYer trying to establish if my boiler configuration is correct, having had it professionally installed back in 2013. Specifically, I am concerned at the: - placement of the pump on the boiler return - placement of the heating 2port motorised...