Jon Grimm wrote:
I am curious about hydronic radiant heat, and wonder if anybody here
has experience using a lesser quality tubing than PEX.

My cats enjoy the radiant heat in the bathroom floor. It's been in for about
12 years or so and no leaks so far. It's 3/4" Wirsbo PePex cross-linked
polyethylene I bought from a local Danex distributor. Danex marketed an
aluminum radiant baseboard panel, it worked nicely but had to be wrapped
around practically every wall since it did not put out the same BTU's per
foot as conventional baseboard.