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cast iron radiators

I am installing a cast iron radiator and I am not sure if there is a right or wrong way for the in or out pipes. I have a bottom to bottom set up and just want to know which way to flow the water.


  • zacmobilezacmobile Member Posts: 211
    edited November 2012
    rad connections

    The most ideal way to pipe them is in top/out bottom. Bottom in/bottom out will work but depending on the rad you would reduce it's output by 5-10%

    If you're wondering about flow direction, it doesn't matter.
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