Hi, recently my system has run out of domestic hot water due to no water in the expansion tank. Having refilled the expansion tank to get the systems going again I have noticed that the water in the tank is VERY hot ............ almost boiling. Is this right ???
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Join date : 2009-04-20
As long as the water in the tank doesn't start boiling and the airing cupboard becomes full of steam, that is fine. Make sure the header thank is full half way.
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