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Hi All Sorry if this is a silly question Do all heating systems have a motorized valve? We have just moved into a bungalow and we are having issues with the boiler and I wanted to check the motorised valve but can't find one anywhere. Can find the water pump etc but no valve. The boiler is a...

Hi Has anyone come across these units before i. e. The units marked as HeatSaver. One appears to be a controller and the other a relay unit. They appear to be restricting the central heating in some way. We have a back boiler which is working fine and we get steaming hot water via the taps etc...