Pump sizing when using Heat Exchanger

  • Active since 1995, Hearth.com is THE place on the internet for free information and advice about wood stoves, pellet stoves and other energy saving equipment.

    We strive to provide opinions, articles, discussions and history related to Hearth Products and in a more general sense, energy issues.

    We promote the EFFICIENT, RESPONSIBLE, CLEAN and SAFE use of all fuels, whether renewable or fossil.
Not open for further replies.


Hearth Supporter
Mar 14, 2008
West Coast
To size the pump going between Heat Exchanger and floor slab, do I need to take into account the size of the heat exchanger and potential Btu output of the stove?
Regards, Scotty
sort of? the head loss of a flat plate HX will be pretty small when compared to the drag of the water in the pipe/mixing valve. If you're doing the usual "FPHE to the mixing valve hot, mixed to the pump to the floor" the flow rate thru the heat exchanger would be minimal, and therefore the head loss as well. more important is seeing what the head loss thru the tube and mixing valve is going to be.
  • Like
Reactions: ewdudley
Not open for further replies.