This is a simple idea that uses solar fans inside of a box to move heat into your room from an external window box. It can also be used to cook with. This will work great for off the grid power outages.
Heat all winter and cook all summer with this simple device.
Watch the video for more details…
If you like this idea, be sure to share it with your friends and inspire someone you know. Anything becomes possible with just a little inspiration…
