Here’s a quick and easy way to build a cheap solar heater that will, according to the following video, save you around $35 per month on your electricity bill during winter time.
- A Foam board
- Enough pennies to cover the board
- Black Spray paint
- A piece of plexiglass
When assembled, the heater should be set up next to a window that gets a lot of sunlight. Apparently, the device could bring the temperature of the room where it’s installed up around 10 degrees.