How to make free solar hot air collectors at home with free materials, these are made from old light fixtures, uses glass, surplus foam board and used metal siding. After these collectors are installed we will have a blower fan to force cool air through a manifold system from the the house into the bottom holes. The hot air being forced out the top will be channeled to different rooms of the house. The blower motor will have a thermostat to come on only when there is enough heat produced within the collector. A second thermostat will control the maximum temp. so the house does not overheat. www.instructables.com
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December 2, 2011 at 2:25 am
Never hit glass with your hand.
December 2, 2011 at 2:25 am
@VillageGoneGreen old cast iron radiators are good but heavy!! or alternally aluminnum,, regards chris
December 2, 2011 at 2:25 am
Thank you for the comments, I wanted to keep them looking somewhat clean looking on the outside. I think the best heat transfer metal is aluminum, copper, mixed alloys and then general steel. Eco Steve
December 2, 2011 at 2:25 am
Nice job Steve, I think that if you put the foam insulation on the outside instead of the inside you should be able to almost double the BTU’s due to having nore exposed metal inside. Question, what metal gives out the most heat?
December 2, 2011 at 2:25 am
For your space size you can use mini solar panels and computer fans for the force air in. When there is enough sun to make the fan run, there is enough sun to make heat. Eco Steve
December 2, 2011 at 2:25 am
This is the video that made up my mind about adding Solar hot air collection to my RV (although I will have to adapt it to my size requirements). This is an excellent instructional video of how to get free heat from the sun.
December 2, 2011 at 2:25 am
Thank for the post, because of the window design and depth, they caused to much shadowing when mounted on the inside. Behind the panels and glass is our houses library, so we can use the windows as intended. Dads ok, he always says a job isn’t done right unless someone draws blood, I decided to leave the clip in as an actual warning. Eco Steve
December 2, 2011 at 2:25 am
Really nice panels. Hope your dad is ok. Why would you mount the panels on the outside of the house? Would they not make better heat inside of the house windows? I can certainly see mounting these on a blank wall,but not over windows.
December 2, 2011 at 2:25 am
@ 12:25 In the video we tried. If you look at the old style windows and the depth, if caused to many shadows as the sun tracked across the sky. A conventional house with “normal windows” may be able to have the collectors attached directly to the existing windows. Good Idea! Eco Steve
December 2, 2011 at 2:25 am
instead of caulking a glass to your invention, you can just caulk it to your existing windows.
December 2, 2011 at 2:25 am
@preparedchipmunk Thank you
December 2, 2011 at 2:25 am
@rigbym99 I did not use plexi, I use free glass that was being thrown out and there was no single piece that was the full length of the panel
December 2, 2011 at 2:25 am
really ver nice
December 2, 2011 at 2:25 am
Great Idea for frames. Why did you do two pieces of plexi vs one solid piece?