could someone please tell me how i increase the pressure in the central heating system for a biasi 24s combi. when the system is cold the pressure is stable at about 0.8 bar. What should i increase it to max and min please.
0.8 is ok if it doesnt get any lower. expect it to rise to 1.5 when hot!
the filling loop on these is external so could be anywhere, but under the boiler most obvious under worktops behind wash/m. your looking for a flexible metal braided hose with 1 or 2 valves
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