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Discuss Old radiator output help in the Central Heating Forum area at UKPlumbersForums.co.uk.

  1. JohnWB

    JohnWB Member

    I am going to replace an old radiator and I was wondering if anyone would have an idea what its output would be.

    It's a double 2.2m x 0.44m without any fins
     
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  2. joni os

    joni os Plumber

    Replace with 2.5Kw output at Delta 50 or a 3Kw which would approx 2.5Kw at Delta 40.
     
  3. JohnWB

    JohnWB Member

    Thanks very much for that but I was really trying to find out the old radiator heat output
     
  4. PlumbBobBob

    PlumbBobBob Guest

    it is very difficult to know without knowing the make because they aren't all made the same.
     
  5. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    about 1kw for something like a roundtop etc
     
  6. ChrisC2

    ChrisC2 New Member

    Whilst I take Steveb's point about it being different for different makes are they so different that any make wouldn't give a rough idea? I have done the same myself but found it difficult to get info on radiators without convector fins as not many seem to be sold now. I only needed single panel I haven't seen any data on double panel no convector fins (hence your post).


    Can you still buy the double panel without fins? I haven't seen any. Another approach if you cannot get them is to ask was this radiator sufficient when at it's best? If not or borderline get double panel with convector (check whether the pipework will reach it). If it was a bit much then a single panel with convector fins.
    The nearest size I found for your figures is the Stelrad 450x2200. The single panel single fin is 1690W at deltaT 50 and the double panel single fin is 2433W so yours was probably somewhere in between when new.
     
  7. ChrisC2

    ChrisC2 New Member

    Whilst I take Steveb's point about it being different for different makes are they so different that any make wouldn't give a rough idea? I have done the same myself but found it difficult to get info on radiators without convector fins as not many seem to be sold now. I only needed single panel I haven't seen any data on double panel no convector fins (hence your post).


    Can you still buy the double panel without fins? I haven't seen any. Another approach if you cannot get them is to ask was this radiator sufficient when at it's best? If not or borderline get double panel with convector (check whether the pipework will reach it). If it was a bit much then a single panel with convector fins.
    The nearest size I found for your figures is the Stelrad 450x2200. The single panel single fin is 1690W at deltaT 50 and the double panel single fin is 2433W so yours was probably somewhere in between when new.
     
  8. ChrisC2

    ChrisC2 New Member

    wiki.diyfaq.org.uk contains a page on central heating radiators which might be helpful though it doesn't deal with double panel no convector.
     
  9. Last Plumber

    Last Plumber Plumber GSR

    It's around 7000Btu's/hr @ Delta 60 ( Ish, don't hold me to it but it's near as damn it for your needs )
     
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