yes the boiler is the one with two pumps
and the boiler demand and flame comes on even if i open the tap half or full. but at full the water is just warm no way at the temperature it should be.
hi guys
my boiler works fine with central heating, and hot water works fine once the heating is on, but as soon as the heating is turned off and i open the tap/shower at high pressure the water is not hot but just little warmer than cold.
i've tried a few things like turning the hot water...