online heat loss calc???

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by Gnfanatic, Jul 21, 2010.

  1. Gnfanatic

    Gnfanatic New Member

    Messages:
    43
    Location:
    New Jersey
    Hey guys, is there an easy to understand heat loss calc online I can use for my house before I buy a boiler??? Last year I had 6 diff plumbers at my brothers house for a new boiler and none of them even measured the house for a heat loss. they didnt even ask me what was in the walls! So, not trusting any of them I would like to do it myself on my house. Any help would be appreciated!


    thanks!
  2. wallskev

    wallskev New Member

    Messages:
    72
    Location:
    North Carolina,USA
  3. Nate R

    Nate R New Member

    Messages:
    472
    Location:
    Milwaukee, WI
    I use ResCheck to run heat loss calcs.

    This is a program by DOE used to check code compliance for energy use of buildings.

    http://www.energycodes.gov/rescheck/

    Free.

    Figured out that my current furnace is pretty oversized, and once I change the windows, add insulation around the foundation and air seal, I'll be moving down to a smaller furnace.
  4. Gnfanatic

    Gnfanatic New Member

    Messages:
    43
    Location:
    New Jersey
    Thanks guys, Nate I am going to try your calc first, may ask what this means though " Enter or calculate the maximum glazing area, defined as the sum of all glazing (including windows, sliding glass doors, skylights and windows in conditioned basements) divided by the gross wall area (excluding basement walls) expressed as a percentage." What is glazing???
  5. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    21,820
    Location:
    New England
    Don't you use Google? A dictionary would help, too. Glazing is the glass. They want to know what percentage of the wall is covered by glass verses a wall that has better (hopefully, anyway) insulation in it.
  6. Gnfanatic

    Gnfanatic New Member

    Messages:
    43
    Location:
    New Jersey
    thanks Jim, will do the calcs this weekend.
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