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    • xyz123
    • By xyz123 12th Sep 17, 6:32 AM
    • 1,510Posts
    • 369Thanks
    xyz123
    Any reliable BTU calculator?
    • #1
    • 12th Sep 17, 6:32 AM
    Any reliable BTU calculator? 12th Sep 17 at 6:32 AM
    Hi, as per my other thread I am looking to replace all radiators in house. For replacement I should do BTU calculation. I tried a few (B&q, plumb nation, home supply) and all give quite different output. Difference is over 20%. So I don't know which one to use?

    Any suggestions re BTU calculator suitable for household use please. Thanks.
Page 1
    • Doozergirl
    • By Doozergirl 12th Sep 17, 8:19 AM
    • 24,214 Posts
    • 67,013 Thanks
    Doozergirl
    • #2
    • 12th Sep 17, 8:19 AM
    • #2
    • 12th Sep 17, 8:19 AM
    They give different answers because they ask different questions. Some are more detailed than others.

    I use the one on the Best Heating website when I need to.

    But you're better off going with a highwr number as you can always turn a radiator down a tad. You can't make an undersized radiator make the room any warmer.
    Everything that is supposed to be in heaven is already here on earth.
    • trailingspouse
    • By trailingspouse 12th Sep 17, 8:39 AM
    • 2,597 Posts
    • 4,015 Thanks
    trailingspouse
    • #3
    • 12th Sep 17, 8:39 AM
    • #3
    • 12th Sep 17, 8:39 AM
    Or you find yourself in my situation - having done various complex calculations I discovered that only one size of the radiator I wanted would fit anyway!!
    • Le_Kirk
    • By Le_Kirk 12th Sep 17, 10:13 AM
    • 2,286 Posts
    • 1,176 Thanks
    Le_Kirk
    • #4
    • 12th Sep 17, 10:13 AM
    • #4
    • 12th Sep 17, 10:13 AM
    This one referred to by Doozergirl.
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