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Replacing rad; need help with room BTU requirement

  • 21-09-2005 01:12PM
    #1
    Samson
    Users Awaiting Email Confirmation Posts: 3,129 ✭✭✭


    I need to replace a radiator as the existing one is old, leaky, was always too small for the room anyway (600mm high x 900mm wide convector).

    My problem is that I don't know how to work out the BTU requirement for the room. I used to have one of those wheel chart things, that I got from a plumber friend, but I lost it a long time ago.
    So, I need a little help with working out the optimum BTU rating for the following size room:
    height 2400
    width 3500
    length 4900

    Thanks in advance.


Comments

  • #2
    kiss103
    Closed Accounts Posts: 50 ✭✭kiss103


    you need more info such as windows , external etc ,

    see this website http://www.radcalcs.com/


  • #3
    delly
    Moderators, Home & Garden Moderators, Recreation & Hobbies Moderators Posts: 7,809 Mod ✭✭✭✭delly


    I found B&Q's simple to use. Here


  • #4
    Samson
    Users Awaiting Email Confirmation Posts: 3,129 ✭✭✭Samson


    Thanks for the help lads.
    I'm a bit perplexed as to why both sites are giving me such varied results though, Radcalcs gave a result of ~5400BTU/hr, whereas B&Q gave me ~8000BTU/hr.
    :confused:
    I reckon I'll go for the 8000BTU/hr, just to be sure.


  • #5
    flocker
    Closed Accounts Posts: 139 ✭✭flocker


    A simple option is to change the 600 x 900 rad for a 600 x 900 double panel rad. Using a Stelrad schedule the output is 7087btu. There should be no moving of pipes just a slight bend out to suit the valve position.

    Just an idea.


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