hi plumbbob Some more info about my system: Boiler: Ideal mexico with 4 tappings Boiler timer: Horstmann 425 Diadem Room Stat: Drayton+3 CH system: Pumped with 2 port valve in line to prevent HW syphoning during CH shut down in summer. this opens when pump energised HW system: Originally pure gravit...
Have purchasd a Honeywell wiring centre and intend to use it to wire C plan. My system is a typical pumped CH and gravity HW with 2 modifications. I have a 2 port valve in the CH flow (to close Ch pipes in summer) and a pump in the Hw return (had problems with air locks in HW system) I am assuming t...
I would like to have more contro over my heating system and to that end I have installed a 6x 7 day room stat. I now want to fit cylinder stat and zone valve for the HWS and re-wire the timing, but I have no installation space between cylinder and vent and feed for the zone valve. Are there any alte...
