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Hydronic resistance of CI Rads?

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Phil_8
Phil_8 Member Posts: 42
in THE MAIN WALL
Does anyone have a rough guideline for calculating the hydronic resistance of cast iron rads. For example a Burnham slim line, four tube, 26" tall, CI Rad with "x" number of sections would be equivalent to "y" feet of 3/4" copper tube? Thanks!

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  • Mike T., Swampeast MO
    Mike T., Swampeast MO Member Posts: 6,928


    For hydronic heating purposes the resistance is zero. The main water passage is very large and you'd have to move a ridiculous amount of water to get any resistance.
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