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Old 07-08-18, 06:25 PM   #1
Join Date: Jan 2011
Location: Mpls,MN
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Default More pex loops better???

I'm putting hydronic pex heating in a high mass concrete slab 14' x 30'. It is for an open room floor plan so it could easily be done with just two loops and meet 1/2 pex length recommendations(approx two 200' loops) spaced from 6" apart near exterior to 12" in the interior. But would increasing number of and shortening the length be better for supplying more and quicker heating if needed(worst case demand). It certainly wouldn't over complicate the system to have 3 or 4 loops in the manifold to any great cost. Structure is super insulated to R50 walls and R80 ceilings. and all the details of Hi-R construction built into the design. Once the slab is poured its too late for any should have's, lol.

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