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Any reliable BTU calculator?

xyz123
xyz123 Posts: 1,674 Forumite
Part of the Furniture 1,000 Posts Name Dropper Combo Breaker
in In my home (includes DIY) MoneySaving
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.

Comments

  • Doozergirl
    Doozergirl Posts: 34,082 Forumite
    Part of the Furniture 10,000 Posts Name Dropper Photogenic
    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
    trailingspouse Posts: 4,042 Forumite
    Part of the Furniture 1,000 Posts
    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!!
    No longer a spouse, or trailing, but MSE won't allow me to change my username...
  • Le_Kirk
    Le_Kirk Posts: 25,942 Forumite
    Part of the Furniture 10,000 Posts Photogenic Name Dropper
    This one referred to by Doozergirl.
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