Leaky, uninsulated ducts in crawlspaces and attics waste huge amounts of energy and money. Use duct wrap insulation for a quick fix with a big, immediate payoff.

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with This Old House plumbing and heating expert Richard Trethewey | thisoldhouse.com | from How to Insulate Ductwork

Allow a gap between the fan and insulation, if required by the manufacturer and local codes. Attach the duct to the fan body.

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Duct Insulation Wrap, R8 HVAC Insulation, Duct Work Insulation

Prodex Total 16 Inch Insulation reflective insulation for in-floor heating systems in a ceiling. delivered to your door at only a small cost above fiberglass

E/O 12 in. x 15 ft. Self-Stick Foam/Foil Duct Insulation FV516 at The Home Depot - Mobile

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