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How many pumps on electric wet UFH?

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I am being told that wet UFH only needs one pump located on the UFH manifold and UFH circuits. 


My understanding is that it  needs two pumps, one for the boiler circuit and one for the UFH circuits as they are two distinct circuits. 


Seeing as you are all experts on circuit arrangements, tell me if the UFH manifold pump can circulate the water through the boiler without a boiler circuit pump installed?
Parents
  • We have a circulating HW main. It remains off unless we have guests because the guest bathroom is furthest from the tank.


    I wonder which wastes more heat: (a) leaving hot water in the pipes after washing; or (b) maintaining the circuit at 60°C?


    I cannot see the point in an average-sized house.
Reply
  • We have a circulating HW main. It remains off unless we have guests because the guest bathroom is furthest from the tank.


    I wonder which wastes more heat: (a) leaving hot water in the pipes after washing; or (b) maintaining the circuit at 60°C?


    I cannot see the point in an average-sized house.
Children
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