Hi, I am getting hot rads when the boiler is set to supply only hot water to the tank.
The electronic valves are working correctly.
It appears to be syphoning back through the system on the return to the boiler.
Question: can I fit a 22mm non return valve into the return pipe which comes back from the radiators, or will this overwork my circulating pump or impede the flow to much??????????????????
Thanks for your help
The electronic valves are working correctly.
It appears to be syphoning back through the system on the return to the boiler.
Question: can I fit a 22mm non return valve into the return pipe which comes back from the radiators, or will this overwork my circulating pump or impede the flow to much??????????????????
Thanks for your help