DIY Solar Heater

It’s only March, but the sun is already beating hot and heavy on us here in SoCal. But here’s an easy project for you to try in the colder regions of the world: a solar heater that converts the visible light spectrum to usable heat using pennies! Yep, pennies. So I hardly need to tell you that this solar heater doesn’t cost too much to construct. It’s yet another good idea from the folks behind greenupdater.com, a site that shows you DIY projects that can enhance your life using alternative energy. Visit their site for the full instructions, but here’s the equipment list so you can collect before jumping in head-first:

2x 20″ x 30″ Foam Board – at your local hardware or craft store.

About 300 pennies (Ross uses 304) – Start looking in the couch.

Flat Black Paint – Benjiaman Moore Eco-Spec paint which is a low VOC (Volatile Organic Compounds) latex paint. Many hardware stores will sell you small sample jars.

24″ x 36″ Plexiglass – At your local hardware store.

Spray Adhesive

Hot Glue Gun

Packing Tape

Utility Knife

And here’s a picture of the completed unit: DIY Solar Penny Heater

Happy Easter everyone!

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1 Response so far »

  1. 1

    Casey said,

    Did you try this? Because I did, and the directions weren’t very good. I found it on the greenupdater site, and just couldn’t see how the 24″ x 36″ piece of plexiglass could fit over a 20″ x 30″ frame. I made it work, but it’s pretty ugly…


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