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Boiler size

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cdm
cdm Member Posts: 77
in THE MAIN WALL
My steam radiators egual 206 sq. ft. of radiation area, from my figures I need a 50K BTU boiler.  Do I need to to increase the net output of a boiler by 1/3 to compensate for piping loss, to have a properly size boiler.



thanks -chuck mulford-

Comments

  • Paul48
    Paul48 Member Posts: 4,469
    No

    That's how they arrive at a net output. You match the net to your total EDR.
  • gennady
    gennady Member Posts: 840
    sizing

    look for removed radiators and take into account their piping. It affects pick up factor. 
    Gennady Tsakh
    Absolute Mechanical Co. Inc.
  • gennady
    gennady Member Posts: 840
    edited December 2012
    duplicate

    duplicate
    Gennady Tsakh
    Absolute Mechanical Co. Inc.
  • cdm
    cdm Member Posts: 77
    Reply to boiler sizing

    Thanks - I appreciate your quick response, and will size my boiler accordingly.





    cd mulford
  • cdm
    cdm Member Posts: 77
    Boiler sizing

    Thanks for your response - I did remove one (6) section radiator in my kitchen - I will include the extra EDR in my boiler selection - thanks







    cd mulford
  • gennady
    gennady Member Posts: 840
    removed radiators

    No you do not have to add them. what you do is add 1/4 edr of removed radiators, just to account for existing piping to non existing radiators.
    Gennady Tsakh
    Absolute Mechanical Co. Inc.
  • cdm
    cdm Member Posts: 77
    boiler sizing

    Thanks for the info. I will thake this lesser amount (1/4 EDR) into account.





    cd mulford
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