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Wrong – These flex ducts are pulled taut, which is correct but they are inadequately supported with straps that are spaced too far apart and are too tight causing pinching of the insulation and turns are sharp rather than gradual.

Guide describing how to upgrade or expand an existing HVAC system.

Guide describing how to install a bathroom exhaust fan to remove excess moisture.

Guide describing how to select and install whole-house ventilation systems for existing homes.

Guide describing how to evaluate existing ventilations systems before performing home upgrades.

Information guide describing things to consider before attempting retrofits including any combustion appliances, or that may affect them.

Guide describing how to correctly vent a clothes dryer.

This guide describes how to install a whole-building ventilation system to provide adequate dilution of indoor air contaminants.

This guide presents central and individual dwelling unit ventilation and exhaust strategies for multifamily construction.