radiant floor heating

Old 02-12-02, 07:58 PM
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radiant floor heating

Lots of questions that are knid of all over the place. Here goes... We are looking at building a house - approx 1800 square feet. It will be built on a slab. Our contractor thinks we may have to do two separate pours - one for the slab and another for the heating system. Is this necessary? Also, I would like to know what kinds of problems people have had with this type of heating. We are planning wood floors throughout the house with tile floors in the bathrooms. Am interested in using a tankless hot water heater to heat the water for the floor heat. Looking for both pros and cons.
Old 02-13-02, 06:27 AM
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Cool do it in one pour!

I see no good reason to do your radiant heat in 2 pours. this will cost you more for the company to come in and do a topping on your slab to cover the heat system. then you have the extra height to deal with when the second pour is done. Every room in the house will have to be double plated to accept the second pour. This sure sounds like the builder is all Smiles looking at your final cost and his extra gambling $........
Old 02-13-02, 06:54 AM
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I agree

I did concrete for years and did a few radiant floors. We poured the footings in one pour and the floor in another. I don't know your floor plan and circumstances though. If it's just a flat slab I see no need for 2 pours.
Old 02-17-02, 08:35 AM
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Nix on the 2 pours. Put the tubing into the original slab.

Get a good design guy and he'll be aware of, and plan for, any potential problems that may occur. Then pay attention to what he says. You can't fix any design flaws after the pour.

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