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Mend Boiler Pressure Heating

is it possible that the mains water is pressurizing the boiler?

it seems as though the boiler is on mains pressure although the fill pipe has been disconnected draing down it seems as though it has unlimited pressure the pressure gauge shows .5 bar

larry
November 2010
Heating, Home Heating SystemsBoiler Pressure Heating

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Boiler Pressurised by Mains Water - Help!