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Coldest climate for solar DHW

Ross_7
Ross_7 Member Posts: 577
in THE MAIN WALL
I realize that it is substantially reduced because of sunlight, but I would like to know how performance is when it's sub-zero & sunny out. If's it cloudy the boiler will take over.Thanks for the tip, HR.

Ross

Comments

  • Ross_7
    Ross_7 Member Posts: 577
    Coldest climate install for solar DHW

    What is the coldest design temp that anyone on the wall has installed solar DHW set-up. Our design temp for winter is -8F, here in Marquette, MI. I would like to hear from everone, especially from the Canadians, ( or is it Canadiens?). Thanks is advance for any info!

    Ross
  • hot_rod
    hot_rod Member Posts: 23,405
    It's more about the amount of sun

    you recieve. Log on to the nora website to download solar available tables for your area.

    hr
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • hot_rod
    hot_rod Member Posts: 23,405
    doesn't Green Bay, WI have

    one of the largest thermal arrays in the US? Solar energy is available anywhere the sun shines. How much, and what it would cost to harness enough for your task becomes the determining factor.

    Try the various solar design software programs to determine "solar fraction" Then see how it pencils out with the economic module of the program.

    hr
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
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