Air Sealing the Air Handler Closet Description Guide describing the repair and reconfiguration of the air handler closet and platform when replacing the air handler.
Kitchen Exhaust Retrofit Duct Guide Description Guide describing the retrofit of kitchen exhaust systems, including duct sizing and routing considerations.
Pre-Retrofit Assessment of Combustion Appliances Description Information guide describing things to consider before attempting retrofits including any combustion appliances, or that may affect them.