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HI anybody sat the exams for these Building Regs and how did you find them

Filling loop disconected is there a way to ajust o/heat stat

Hi guys having a problem with temp getting to high renewed pressure relief valve, recharged expansion vessel no water coming out so diaphram seems o-k Any idea,s

Hi which one did you buy as some boilers dont have a lot of room

Any good tool suggestings for testing pressures on combi expansion vessels