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CH pump speed (Read 1496 times)
Natedog
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CH pump speed
Dec 16th, 2011, 10:08am  
Our central heating has a grundfoss 3 speed pump.  How do you decide the right speed to set it to?
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thescruff
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Re: CH pump speed
Reply #1 - Dec 16th, 2011, 11:31am  
Load and pipe sizes.

Make and model of the boiler could also dictate the speed, otherwise low as it will go and the radiators still work.
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