How might I heat a basement space with solar heated water running through radiant underfloor tubing?
I live in the northeast and have a basement meant to be used by the kids as a hang out and studio space. It's cold. I'd like to heat it cheaply and environmentally. My preference is to use radiant floor heating with hot water supplied by a solar water heating system. I need to build both. I've seen great ideas for heating the ground and upper floors but I'm snagged on how to adapt any of them to a basement space. Oh, and I have practically no budget at all - tubing to be purchased but most everything else scrounged/salvaged/adapted. Any helpful suggestions?