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Guide describing how to air seal around duct shafts and flues installed through ceilings, walls and flooring in new and existing homes.

Guide describing how to air seal and insulate metal ducts.

Guide describing air-sealing of the seams and holes in HVAC air handler and furnace cabinets.

Guide describing how to air seal and insulate fiber board ducts.

Guide describing how to thoroughly seal HVAC ducts to ensure air delivery without leakage, and to ensure economical and quiet performance of the HVAC system.

Guide describing how to air seal and insulate flex ducts.

Guide describing the repair and reconfiguration of the air handler closet and platform when replacing the air handler.