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Need help with floor warming

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smoore
smoore Member Posts: 28
in THE MAIN WALL
I have a customer that is remodling a bathroom and would like radiant heat in his walk in shower. The concrete has already been poured in the shower and i don't know if it will work by installing tubeing in joist space with heat plates. there are two layers of 3/4" plywood, 2 1/2" of concrete and ceramic tile going on top. Will it work in the joists or do i need to break concrete out and install tubeing into concrete? the shower is 4 1/2' by 4 1/2' and the room is heated via forced air furnace. thanks for any help.

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  • j_4
    j_4 Member Posts: 59
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    shower heat

    most tile installers don't like tubing in their setting bed....what about radiant walls in the shower
  • Mike T., Swampeast MO
    Mike T., Swampeast MO Member Posts: 6,928
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    If you water at least 140

    You should be able to do it with 3/8" copper tubing in Radiant Engineering Thermo-fin on 8" centers. Not particularly fun to do, but a lot easier than destroying the mud floor.
  • smoore
    smoore Member Posts: 28
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    radiant walls

    The radiant isn't really to heat the shower just to warm the floor as this customer is somewhat spoiled and doesn't want to step onto a cold shower floor.
  • hr
    hr Member Posts: 6,106
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    Floor warming

    If you have a way to get under the floor a plate type system should work fine. That is my most popular retro fit application. I would go with 8" O.C. spacing and 3/8" pex for ease of installation.

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