Recent content by RichardRichard

If the hot water motorised zone valve is on, but the central heating motorised valve is Off, the radiators still get a little warm. The attached photo of the pipe work above the boiler shows the layout [/img]

plumbing pictures

The pipe on the output side of the zone valve does get hot, but only for a few inche. It has always done this. The return pipe from the upstairs radiators is hot all the way up to the ceiling with the CH OFF.

With the central heating off, but the hot water on, some radiators get warm. The Honeywell zone valve that controls the radiator circuit does appear to switch off the radiator water.

I want to install a filter in the primary system. The HW primary return in my system needs to be moved to near the boiler to avoid warm radiators when the CH is off. It would be convenient to put a filter in the new HW primary return pipe. Is this a good place? Where is the best place for a...

If the hot water motorised zone valve is on, but the central heating motorised valve is Off, the radiators still get a little warm. The hot water primary return is about two feet from the boiler and there are central heating returns between the hot water return and the boiler. A plumber tells...