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Going through some old photos from my parents and found this “proof of concept” hot box my dad built in 1979. This would eventually turn into a “six panel” system across the back of our house. By “panel” I mean salvaged “storm windows”. The system would pull cold air from the basement, through the hot box where convection would pull it through a wall cavity, through a drop ceiling and out a vent located over a doorway into the north facing end of the house. “Free heat !” Is what he used to call it when the little strip of toilet paper thumb tacked over the vent would start fluttering. Of course the heat basically flowed up and out of the (then) 80 year old house…insulation would follow at some point down the road too. What’s interesting though is just TODAY, I opened the latest issue of Mother Earth News to an ad featuring a “Window Solar Heat Grabber Blueprint” for $10.00. Now what do you think about that?
1 – It’s all been done before.
2 – Good ideas stand the test of time.