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heatin guy

Anyone have issues with radiant heat in a 6" concrete slab "OVERHEATING" ?

The tubing was laid out by one engineer who is no longer on the job, 12" centers through out, 12" insulation under the slab!!! The boiler will have outdoor reset and t stats will have a 5degree anticipator.

The new engineer wants to abandon the tubing in 6" slab and install new tubing on top in a thin slab. He believes the thermal mass of the 6" slab will cause the rooms to overheat. Any suggestions or comments greatly appreciated


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