Recent content by Simmo44

Hi It seems to have been a faulty programmer..... Replaced it like for like and so far seems ok.... Thanks again everyone

The hot water comes out of the tap due to the gravitational effect of the cold water tank which feeds the HW cylinder, but that's not called a gravity HW system. Confusing, eh. Thanks D_Hailsham. You're correct that its a fully pumped system as it uses a motorised valve. Thanks for all the...

Hi DP the hot water stat is fitted to the cylinder. Sorry - i don't know much about the wiring :-( The plumber who fitted the boiler seemed a bit confused by it all...... Thanks

Hi I've recently had a new boiler installed - Potterton Suprima HE. I also have a new programmer - Honeywell ST699 and Room stat - Honeywell DT90E. The Programmer is a Sundial Y plan with a gravity hot water/pumped central heating system so the heating only works when the water is also...