Pop soda beer can Solar heater furnace cansolair panel -- Part 1

@ ReR0LL

Yes.

Google Passive cooling cupboard

hi im enjoying getting my beer cans emptied cant wait to try this project

Would you say this completely heats your house in the winter?

I'm just using it on my shop, which has no heat. If it's 30 degrees outside, it's about 55-60 in my shop. The heater will def lower your heating bill.

Or just put a cover on it :)

An easy fix for this particular unit would be to make a wooden air tight manifold of sorts built into the end boxes in order that the air will travel only into the first tube then to each consecutively back and forth to each tube, until the last tube then into the workshop. The key is you are essentially making each single tube into one long tube so that the air will pass through all tubes in order to reach the vent exit. This should result in the air growing steadily warmer until it exits.

I've been wondering the same thing. It seems that all of the "pop can" style solar heaters I've seen are built in a way that air isn't traveling evenly through all of the tubes. I've been wondering if you could achieve higher temps by running the tubes in a series from one side to the other like you're talking about, so that the air travels through every tube. It would be more work to build one this way, but would be worth the time if it was more efficient.

Believe it or not the thermodynamic principles are very similar to the mechanical principle of a car jack when you see the equations on paper. Think of it this way. You can try and lift a car in one big lever push which would require a large lever. Or you can jack it up in small increments. Same with raising the temperature of air, you can pass it all at once from one end to the other in one big push or you can circulate it through all the tubes and raise the air temp in each in small increments

With the smaller increments you get a greater efficiency for the work load. In a system as large as the one in this video I wouldn't be surprised if by doing it that way if you wouldn't increase the efficiency by a significant factor. Wouldn't be that hard to alter this solar heater either the way it is well put together. All you would need to do is encapsulate tubes 1 and 2 together at the top then tubes 2 and 3 at the bottom then 3 and 4 at the top and so on. Should make one long tube.

If I was to build one like we are talking about with the tubes all connected, what effect would that have on the temperature inside the box? I would be getting hotter air out of the box, so the box would cool off faster right? I'm looking to build one of these soon and I want mine to be as efficient as possible. Also, what are your thoughts on cutting the fins in the bottom of the cans as opposed to drilling three holes in the bottom of the cans in a triangle shape? I've seen them done both ways