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    Central Heating/Pump Question

    I live in a 14 year old 4 bedroom house fitted with 13 radiators, a Grundfos Selectric 15/50 central heating pump & have 3 problems that could all be connected: 1) The 2 radiators in the living room don’t get very hot unless I put the central heating pump on speed 3. 2) When the central...
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