$10 DIY Passive Solar Room Heater

Life Hacker has an excellent little instructional video posted today on a DIY solar window heater. The vid details how you can turn a couple sheets of foamboard, some pennies, some flat black spray paint, and a sheet of plexi-glass into a unit that could save you $30 to $40 dollars a month on your heating costs.The concepts are simple, and the construction looks like it could be managed by any