Active Solar Air Heater

Great looking project ! Please keep us informed

37° outside and 135°F coming out of the panel until it cooled off to 90° inside after about 10 minutes. 98° increase!!!!!!

Good work... I look forward to seeing your house unit.

Let me clarify....The intake air is also 35°F so I'm seeing a differential temp of 75°F. If I switch to manual mode and let the panel warm up longer I'd get a higher reading. I'll try that this weekend.

With the outdoor temp @35°F the output temp will quickly rise to 110°F then after about 15 minutes it will shut off @ 90° for a few minutes and the cycle starts again. Keep in mind that my 4" ducts inside the garage are not insulated yet but I found the loss insignificant as I got the same readings at the roof manifold. BTW...I drilled out the tops and bottoms of all the cans with a 1 3/4" hole saw. No fins or baffels.

Looks great, enjoy the very cheap heat as the fruits of your labor. You may have to set up some partitions around you main work area during the winter to reduce the cubit feet your trying to heat. Just a thought.. Thanks for posting your project.

Nice panel, I just built one using 48 cans for testing but need to drink another case of beer before finishing it. What are your outlet temperatures?