Guides A-Z

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

Guide describing categories of direct-vent combustion space- and water-heating equipment and combustion safety testing.

Guide describing the use of electronically commutated motors (ECMs) in HVAC central air handler fans to reduce power consumption compared to a single-stage fan motor.

Guide describing the retrofit of kitchen exhaust systems, including duct sizing and routing considerations.

Guide describing options for adding dehumidification equipment to a home to maintain indoor relative humidity below 60%.