Closing my whole house AC. Need to block drafts
I made a blocker with a sheet of styrofoam but have another filter to block and have no more styrofoam. How else can I block air during winter
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heavy plastic,bubble wrap,air conditioning insulation kits
You can use cardboard in the registers. Also, put an insulation sheet in each outlet.
Do you have central air? My forced air gas heating uses the same ductwork. I turn the a/c breaker off. Then I get a cover for the a/c unit. It's basically just to keep the leaves, debris and snow out. I live in Michigan. Window ac units are usually taken out.