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Some people build these with painted beer can columns on the inside serving as air ducts, see this video for an example: https://youtu.be/nuxanLdtwZQ https://yo
by rzzzt 10y ago
Some people build these with painted beer can columns on the inside serving as air ducts, see this video for an example: https://youtu.be/nuxanLdtwZQ https://youtu.be/nuxanLdtwZQ
They also tend to install it on the side wall; it doesn't get that much sunshine in the summer, but it becomes more efficient in the winter when the Sun stays at lower angles. External circulation of air is still required and is usually done by using an electric fan.
- imaginenore 10y agoYeah, I'm fully aware of that design. I've seen tests of it against a much simple design with the sheet of fabric in the middle, and there's basically no difference. Cutting so many cans' tops and bottoms is actually not an easy task, I had tried.
- redtexture 10y agoA couple of pieces of plywood, for each window, and some foam strips for air-flow sealing would do. This is not a big effort, just more than your (exceedingly short-lived) cardboard design contemplates. The gain in creature-comfort in the apartment, might be more than the money saved in avoided heating, as a renter of the apartment.