Recent content by MartinSullivan

Ok you pointed me in the right direction I think - just found this Basically, there are four wires going to the zone valve. (Actually there may be an additional earth wire, as they seem to be metal cased). Amongst them should be a brown/blue pair. These control the motor. The blue will be...

Andy thanks for the swift reply, Im learning as I go along :) Its two 2 port valves, does that make it S plan?? Ive seen the terms scattered about over t'internet but not appreciated the subtleties. I read that I should have one rad without a trv, these were all fitted before I bought the...

Hi I have an existing Apollo 50Si boiler, which seems quite reliable and works well. Until recently this wasnt able to run central heating independantly of hot water, but Ive just had that sorted. All the radiators have manual TRV's on them but I would like to add a room thermostat to give...