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.
could we do this?
The theory is correct but I just don’t see this working when we need it most. It won’t matter if the sun is shining on the thing if it’s covered in an inch of ice. Our rooftop doesn’t even thaw out for 2+ months and it’s solid black.
Looks simple enough
Plenty of house boats do this with a regular garden hose on their roof for hot showers in the evening.
Following
I have been going to try this for several years, I don’t know why I haven’t done it yet I was talking to a friend about this a couple weeks ago, guess it time to get my butt in gear
I am still going to do this.
One great lesson last night is Its impossible for Hillary to separate herself from Obama. She was with him 100% all in.
(y)
pmillerj says:
“The heaters and A/Cs do recirculate air; however, they are also required to pull in fresh air. Especially in newer houses that are “air tight.””
From: http://www.truthandaction.org/simple-solar-furnace-under-50/comment-page-5/#comment-676435