Quote:
Originally Posted by where2
Removing the baseboard plumbing and running PEX under the floors for radiant heating.
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If there is any way that you could put your radiant system on top of the floor rather than underneath, you will have much better efficiency.
There are lengthy discussions here on EcoRenovator about this.
A 1.5" Gypcrete floor with PEX works well.
Also, a built-up layered floor with aluminum spreaders is great.
If you must put your PEX under the floor, it should be directly in contact with the floor, and you should use aluminum spreader plates.
Do not use 'suspended PEX'. It's easy, it's cheap, is really, really inefficient.
Best,
-AC