DIY Solar Collectors: Upgraded Build & Testing w/ Real World Use
85K views · Jul 12, 2026 · Education
Comments · 651
@user-nu2pj2ch7t · 2 months ago
such a gem on youtube. i learn so much from your content and genuinely appreciate your scientific method approach to determining effectiveness
98
@MrDustin713 · 2 months ago
If I can please make one request for a sand battery bank project for thermal heat storage/use! I think it would integrate very well with your current projects. Love the video's man, keep them coming!
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@SeekingBeautifulDesign · 2 months ago (edited)
I'm sure someone else will mention this but ...<br>Scandinavian Drying Closet: Hang wet clothes in box through which hot dry air passes with low speed fan. Clothes dry, but aren't degraded at the rate imposed by tumble dryers. Box is cheaper and more reliable than dryer, tumble mechanism and control electronics. Dryer does dry more quickly. <br><br>Drying closet requires no control electronics as passing warm air over already dried clothes doesn't degrade closet, fans or use much extra electricity. Both lower temperature air with higher volume or higher temperature with lower volume both work. Basically just run fan so that max temperature never occurs. <br><br>If 5W fan is used as per video, drying closet saves 150W electricity for the tumble motor.<br><br>So, the final test here wasn't really about follow on efficiency after the collector, but since we're already thinking about the concept of efficiency...
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@mauriceupp9381 · 1 month ago
The bug screen is not what's gathering the heat up in your box.It's the piece of metal that's fainted black.And in the case of the first one, it's the styrofoam that was fainted black
6
@theamazinggonzo1 · 2 months ago (edited)
Always excited for the latest greenhill video
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@utubeaccess7 · 2 months ago
I really appreciate all of your hard work.
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@44MichaelBarrett44 · 2 months ago
Solar water heating will be interesting.
2
@niceguy191 · 2 months ago
I'm wondering if you could lay/loop the bug screen like ribbon candy so that the air flows through multiple "baffles" of the screen.
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@jakecorbin1998 · 2 months ago
I'd be interested how (one layer of) landscaping fabric compares to bug screen.
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@JakMang · 2 months ago
Heat pump manufacturers should offer add on modules like these. The pump fan could pull air through the collector. Anywhere with winter sun would really benefit
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@RentableSocks · 2 months ago
more bug screen layers please!
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@Cynthia_Cantrell · 2 weeks ago
Excellent work! I'd be tempted to add a humidity sensor to the dryer exhaust and wire it back to the Arduino. This would allow the controller to automatically turn off the dryer when your clothes are dry, saving even more money - or running it longer on cloudy days to make sure your clothes dry out. I suspect this means adding a power relay to the electronics, but that's not difficult.<br><br>I wish my health was still good enough to work on projects like this!
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