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    u504491's Avatar
    u504491 Posts: 2, Reputation: 1
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    #1

    Nov 4, 2006, 05:57 AM
    Central Heating Pump
    How do I calculate the size of pump I need for my system
    NorthernHeat's Avatar
    NorthernHeat Posts: 1,455, Reputation: 132
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    #2

    Nov 4, 2006, 08:18 AM
    Water pump? Heat pump?
    u504491's Avatar
    u504491 Posts: 2, Reputation: 1
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    #3

    Nov 5, 2006, 06:12 AM
    It's a water circulating pump for a 12 radiator ststem.
    NorthernHeat's Avatar
    NorthernHeat Posts: 1,455, Reputation: 132
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    #4

    Nov 6, 2006, 05:44 AM
    Many grundfoss pumps have 3 speeds and will work fine for only 12 baseboard radiators.
    Airwren's Avatar
    Airwren Posts: 15, Reputation: 2
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    #5

    Nov 7, 2006, 06:39 AM
    Most boilers have a recommendation for min flow rate through boiler, some provide specific pump makes. After the boiler needs have been met, a pump to circulate through the radiators is not as crucial most pumps will be more than adaquate. Be careful with the temp of the return side of the boiler if it gets to low and your boiler is prone to corrosion it could condensate and prematurely rot your boiler.
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