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Return-Air Problems
Subtitle: What happens when the bedroom doors are closed Images: In homes with a single central return-air grille, return air often struggles to find its way back to the furnace. The result:...
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This New Door Design Solves an Old Problem
Subtitle: Canadian students developed an interior door that helps equalize air pressure between adjacent rooms, and then founded a company to market it Images: UPDATEDAn interior door developed by...
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