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Hi, I'm not sure whether i'm after help, advice, reassurance or all three here so bear with me. I have an old Glow worm space saver 20-30 F boiler. A honeywell 4073a 3 port valve, honeywell cylinder stat and honeywell room stat. (y plan?) The HW is gravity fed and CH is pumped. If I...

Hi, I believe that my old Honeywell 3 port valve is faulty and is not opening up to allow just CH when the HW has been satisfied. I've picked up a cheap Sunvic momo 3 port and just wanted to test it works ok before fully installing. Can I just wire it in to the box as instructed and then...

Hi, I've been having a problem with my cental heating. It has only been coming on when the water in the cylinder needs heating, ie 1st in morning or evening. Once water has reached a certain temp the CH goes off also. Anyway after to speaking to a plumber colleague at work today he...

Hi, I'm after a bit of help please. We are having a bit of a problem with our heating. The rads don't stay on long enough to for the house to reach the temp set by the thermostat (20 degrees). It seems like that once the water reaches it's desired temp it, the heating is turning off as well...

Hi, I have an old room thermostat that needs replacing. It's an old 70's style one which is no longer working. Inside the case it says that it's an Honeywell 4200 3879-01. I perhaps looking to replace with either a basic digital model or another honeywell dial type. From my research I see...