Recent content by JPreston

I mean that if I were to drain the heating circuit, then I wouldn't have heating while it was empty and if I had problems refilling it afterwards... I should also stress that I did not drain the heating circuit, so would not have created an airlock in the heating coil, I guess. I was hoping to...

The stiff valve is a regular gate valve, it doesn't look like any balance valve that google throws out. Not sure if that changes your verdict? It is on what I now realise to be the heating circuit out from the cylinder (it comes out directly beneath the circuit in from the three way valve). I...

Hi all - first post from me but long time lurker - any advice gratefully received... After draining my water tanks and pipes in order to move appliances round a new kitchen, my gas boiler no longer heats my water cylinder. Cold water flows steadily from my hot taps. Gas central heating works...