With Instructables you can share what you make with the world, and tap into an ever-growing community of creative experts.
Tell us about yourself!
If you would cut two rectangular holes in the back, one on the top of the back board and one on the bottom. Attach lightweight plastic on the inside of the lower one and one on the outside of the upper one. Sit in a window on the south side of your house, you would be amazed how much heat is generated into the room during a sunny day! made a similar one without cans, just painted cardboard flat black, put the covered holes on the top and bottom. Taped it to a south window in my living room. The temperature of my living room rose almost 10 degrees during a sunny winter day.
Let your inbox help you discover our best projects, classes, and contests. Instructables will help you learn how to make anything!
© 2016 Autodesk, Inc.