This amazingly simple Window Solar Heater unit can be built for around $30 in parts.
What is a Solar Air Heater?
Solar Air Heaters are systems that capture the suns rays and convert the energy into heat. As the sunlight passes through the front of the unit, the sunrays are trapped, giving off heat.
Cooler air from your home or outside enters the system and is heated by the sun. In fact, temperatures inside solar heaters can reach over 220 degrees! As the air is warmed, it rises. A vent in the top of the unit allows this warmed air to pass directly into your home.
The system does not run off a solar panel, however one can be used to power other features such as a thermostat and blower fan.
Solar Heaters are ideal because they:
Produce Heat for ZERO Cost
Require less than 5 minutes of maintenance a year
Don't interfere with your current HVAC system
Run for years
Can be used in places with no electricity or gas
Are completely safe
Are easy to build
Pay for themselves in as little as 1 month!
www.DIYsolarAirHeater.info