• 

  electroviddude

  

  

This heater is in its second winter and has held up well for a prototype. It could be made of wood and solar glass and it would still be a bargain since it will pay for itself. The more surface area you cover, the more heat you get.

Permalink:
Credits:	Grant T. Schaefer
URL:	http://solarevolution.net
Tags:	dillinger escape heat passive solar plan solar

MORE

LESS