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Is this a decent heat loss calculator?

Hi all,

Does anyone have an opinion on the heat loss calculator on the U.S. Boiler company's website?

Trying to figure out the heat loss for a couple of rooms in my house and this one seems simple enough although it does not seem to be able to account for rooms over heated spaces (the only options are "over unheated space" or 3"-" overhang"). Is the Slant/Fin App better? Are there other free options that are user friendly?


  • Steve Minnich
    Steve Minnich Member Posts: 2,695
    I think the Slant Fin is a better option, much easier to do a room by room heat loss.
    Steve Minnich
    Minnich Hydronic Consulting & Design, LLC
    [email protected]
  • JimmyNJ
    JimmyNJ Member Posts: 98
    Thanks for the input. Once I figured out how to use the app on my android tablet it went pretty smooth.