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Re:Heat Pumps – The Well-Tempered Future of A/Cs by zip1234 on Wednesday July 05, 2023 @08:30PM (#36609268)
- spray foam around/behind outlets on exterior walls (major leak point) which can be done often by just removing the outlet covers

- spray foam around windows (requires removing trim)

- caulk joints/spray foam rim joist in basement/crawl space

- spray foam around any attic can lights/duct work

- make sure ducts and air returns are sealed properly

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