Ideal Classic no heating but have hot water?
switchmaster cylinder stat to honeywell cylinder stat?
HOW DO I SET IT?
Honeywell ST7100 programmer goes blank when RUN selected?
what is wrong with my isar boiler/honeywell thermostat?
why has my wireless time clock stopped responding?
boiler bangs when zones shut down?
Ideal W Stelrad Group boiler RS450 1239(3)?
dmestic hot water near boiling point, howto adjust temperature?
How can i marry my honeywell CM921 the the BDR91 relay box?
How do I reprogram my ideal bolier rf thermostat receiver?
Radiators not all working all the time???