I haven't looked it up, but is this one of those deals that absorbs solar heat, then blows it into the house when it gets to a certain temp? I read an article on how to build those things years ago. I've a got a shitload of South/Southwest exposure on my place.
__________________
"To those of you who are wearing ties, I think my dad would appreciate it if you took them off." - Robert Moog
|