Guides A-Z

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

Guide describing how to conduct combustion appliance zone testing.

Guide describing combustion furnaces with selection and installation guidance.

Guide describing design and installation of compact duct systems for central heating and cooling systems.

Guide describing how to install a corrosion-resistant drain pan in condensate-producing HVAC equipment.

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 how to upgrade or expand an existing HVAC system.