We’d like to remind Forumites to please avoid political debate on the Forum.

This is to keep it a safe and useful space for MoneySaving discussions. Threads that are – or become – political in nature may be removed in line with the Forum’s rules. Thank you for your understanding.

The MSE Forum Team would like to wish you all a Merry Christmas. However, we know this time of year can be difficult for some. If you're struggling during the festive period, here's a list of organisations that might be able to help
📨 Have you signed up to the Forum's new Email Digest yet? Get a selection of trending threads sent straight to your inbox daily, weekly or monthly!
Has MSE helped you to save or reclaim money this year? Share your 2025 MoneySaving success stories!

Any reliable BTU calculator?

xyz123
xyz123 Posts: 1,672 Forumite
Part of the Furniture 1,000 Posts 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: 25,642 Forumite
    Part of the Furniture 10,000 Posts Photogenic Name Dropper
    This one referred to by Doozergirl.
This discussion has been closed.
★ ★ ★ Meet your Ambassadors

🚀 Getting Started

Hi new member!

Our Getting Started Guide will help you get the most out of the Forum

Categories

  • All Categories
  • 352.9K Banking & Borrowing
  • 253.9K Reduce Debt & Boost Income
  • 454.7K Spending & Discounts
  • 246K Work, Benefits & Business
  • 602.1K Mortgages, Homes & Bills
  • 177.8K Life & Family
  • 259.9K Travel & Transport
  • 1.5M Hobbies & Leisure
  • 16K Discuss & Feedback
  • 37.7K Read-Only Boards

Is this how you want to be seen?

We see you are using a default avatar. It takes only a few seconds to pick a picture.
Update Your Picture