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Copper to Pex - infloor heating question

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  • Copper to Pex - infloor heating question

    I am looking to install Pex with the fin plates under the plywood sub-floor in my bathroom to create in floor heating(I have access underneath - 2 x 10" floor joists). My plan is to connect to the existing 3/4" copper hot water baseboard line, loop the Pex between the joists, and then re-connect to the baseboard to continue the loop of the zone. My question is, do I need to use 1" Pex so I do not have issues with the water flow rate created by the hot-water furnace? Or can I use 3/4" or even 1/2". Thanks.

  • #2
    Re: Copper to Pex - infloor heating question

    How about your water temp. ? Sorry, just curious.

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    • #3
      Re: Copper to Pex - infloor heating question

      Water temp is 160 - 170F.

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      • #4
        Re: Copper to Pex - infloor heating question

        How will you control the bathroom temp?

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        • #5
          Re: Copper to Pex - infloor heating question

          That temp is to high for radiant, how will you temper it ?

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          • #6
            Re: Copper to Pex - infloor heating question

            The thermostat is in the bedroom that controls the heat for the bathroom...my idea is to have Pex under the sub-floor so when the thermostat calls for heat it also heats up the tiled floor...I am not concerned that it will get too hot in the bathroom...

            Regarding the temp, will the Pex pipe not handle that type of temp?

            Thanks

            Comment


            • #7
              Re: Copper to Pex - infloor heating question

              Originally posted by mdejong View Post
              The thermostat is in the bedroom that controls the heat for the bathroom...my idea is to have Pex under the sub-floor so when the thermostat calls for heat it also heats up the tiled floor...I am not concerned that it will get too hot in the bathroom...

              Regarding the temp, will the Pex pipe not handle that type of temp?

              Thanks
              Sure

              Comment

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