5. Screen Absorber Solar Air Heater
If you have a solar panel, tools and enough electrical know-how to make the previously mentioned DIY Electric Space Heater, you can create a Solar Air Heater that will provide you with a better range of heat.
When this Solar Air Heater is working to full capacity, it can turn outside temperatures in the 40s to almost 140 degrees Fahrenheit!
This is something that anyone who wants to use solar energy as much as possible should consider making. Even if you don’t want to use it on a regular basis, making one now could come in handy after the SHTF.