Compact Air Distribution Description Guide describing design and installation of compact duct systems for central heating and cooling systems.
Combustion Appliance Zone (CAZ) Testing Description Guide describing how to conduct combustion appliance zone testing.
Pre-Retrofit Assessment of Existing HVAC Systems Description Information guide describing considerations for before retrofitting HVAC systems, retrofit scope considerations, and HVAC system replacement options.
Condensing HVAC has Corrosion-Resistant Condensate Drain Pan Description Guide describing how to install a corrosion-resistant drain pan in condensate-producing HVAC equipment.