I've put up a web page with photos taken during installation of a
pair of passive solar heating panels at

http://www.iedu.com/DeSoto/SC_Madison/

These two panels use neither fuel nor electricity, and keep the
building "shirtsleeve comfortable" through the winter.

Something to think about if/when your heating costs begin to get
out of hand...

--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto