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A comment on Air-to-Air Heat Exchangers for Healthier Energy-Efficient Homes. Parent comment

Re:Air-to-Air Heat Exchangers for Healthier Energy-Efficient... by tinco on Saturday February 04, 2023 @06:41PM (#34659706)
I got used PIR panels for cheap for my renovation. There's companies who operate large barns filled with that stuff selling it online.
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