Search results

We got up this morning and only switched on the hot water and the rads are just as hot as if the ch had been switched on as well

I checked that and all 3 pipes are hot

1) reverse circulation sounds about right, so if the 3 way is faulty, it would let this happen? I'm pointing out that it may be 25 yrs old and appeared to be working ok 4 weeks ago. 2) correct, the rads get hot when only the HW is turned on, the valve is a honeywell. I might be sounding...

Hi, I'm a newbie here, and can handle many DIY situations. We have just moved into somewhere new and I'm having trouble understanding the central heating system. It's a Halstead 'hero' boiler in an open vented system incorporating a 3 way valve which may be the cause of my problems. The house...