insulation

insulation ac duct tape funny - 7523072000
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I had to install an air conditioner, but my window is weirdly shaped. So I cut some housing foam to fill in the gap, but measured wrong, so I taped the gap at the other end with cardboard

insulation towels - 6628828672
By Unknown
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Oh sure, that'll trap about 0.000001% of all heat in the house. Every little bit counts!