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Btu question

keith_27keith_27 Posts: 63Member
edited November 2018 in Domestic Hot Water
what is the btu for bare 3/4 copper in the basement
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Comments

  • IronmanIronman Posts: 5,091Member
    That depends upon the temp differential between the pipe and the ambient air. At 70* ambient air and 180* in the pipe, it's 45 btus per lineal foot.
    Bob Boan


    You can choose to do what you want, but you cannot choose the consequences.
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  • hot_rodhot_rod Posts: 11,629Member
    flow rate inside the pipe as well as any air movement around it will have some effect. Keep in mind the temperature drop, measure SWT and RWT, add those two then ÷ by 2 to get average temperature across the run. Use that average for your estimates.
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    The magic is in hydronics, and hydronics is in me
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