I have a 25 year old Ideal Standard conventional boiler and recently the pump went. I replaced the pump with a GRUNFOS 15/60 pump and since then the pipes into the boiler, all radiators and also hot water are never more than lukewarm even when the room thermostat and the boiler hot water thermostat are put at very high (max) settings. Any ideas?
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New Pump Problem?
- Thread starter robg47
- Start date
DIYnot Local
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