My Hydronic installation
is limping along and I've realized that it would be very easy to run a return line under the 16" x 36" area under the table. This is where we have breakfast every morning and surf the web many evenings. In our last house we had hydronic in-floor heat in key areas, including the eating area, and it really improves the comfort level at lower temperatures and saves lots of energy.
I'm thinking that a single
run of 3/4" pex, fastened to the bottom of the 1/2" teak/holly plywood
, backed by 1" of armaflex should be adequate. I have no idea how much heat escapes from pex but, if that doesn't work, then I could change that out for 3/4" od copper tubing.
Anyone out there with experience at this?