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Thanks for all the great discussions here, I've learned a lot.
Long story short - we're renovating and considering radiant but are also hoping to use 5" wide 3/4 hardwood (white oak). It would be installed in about 1200 sq ft with R25 walls, double pane low-e windows and simple floor plan. We will also be install a new high-efficiency boiler and are hoping for as low water temperatures as possible.
Thoughts on installing 5"-wide hardwood over Warmboard-R? Are we asking for trouble and need to consider something else for the flooring? Anything else other than Warmboard-R that you would consider better for 5"-wide hardwood?
We have spoken to a heating company that has worked with our family before. They usually use Uponor products for radiant but are willing to use something else.
Thanks in advance