A simple solar heater that is cheap and easy to make. When there is direct sun on the unit it produces heat like a hair dryer.
According to the creator it produces a stream of air of around 120 degrees.
Some suggested tips for improvement:
– Make sure your black paint is matte so it doesn’t reflect the sun.
– The air moves by convection, however, you could add a small computer fan on the outlet and wire it to a 12 volt solar cell the unit to control the air rate.
– The intake size could be adjusted to control air rate as well. Making the intake smaller will give the air time to heat up while passing through the dryer ducting but it will slow down the rate of air flow. You can run it hot and slower or with more air and not as warm.
– A flat plate could be added between the intake tube and inside wall up to a little pulley inside the house. You could then adjust the air rate like this as well and have an on/off option.
– Add insulation to help maintain heat running through the system. Could prove vital for very cold areas.
My husband made one also. About too hot for me.
Don’t tell the Republican Congress this.
The left side of my house would be perfect.
How would one get the details ????
Look on YouTube Jim Meadows. There are a ton of how-to available
Elle says:
“It is also called a hot water heater. It’s a heater that tuen cold water into hot water. Apparently you forgot that part! :)”
From: http://www.truthandaction.org/simple-solar-furnace-under-50/comment-page-1/#comment-383763
Where do you get one?
I have 3 of these, home made! I have to hide them from the city code enforcement or I will get a ticket. They work great in Colorado I did not turn my furnace on until overnight temp dropped to 20 degrees. I have measured 180 degrees coming into the house! A man in the 1980’s made houses that were off grid the U.S. put him out of business! Google earth ships for the documentary!
wow…if only I were handy
cool