old raditors

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[Deleted User]
[Deleted User] Posts: 1
in THE MAIN WALL
we have a couple of jobs comming up where there are old raditors and i am trying to figure out how many btu's they draw i was told there are books that give this info so i came here to find it and all the info on them show the rating in square feet of heating surface so how do i convert this to a btu rating for say 180 degree water or 140 degree water
any help on this would be great
thanks
mike

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  • michael_15
    michael_15 Posts: 231
    BTU - EDR conversion

    You're probably looking for the conversion of around 90 BTU/h per sqft EDR for 140 degree water and 170 BTU/h for 180 degree water.

    -Michael
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