ECM Air Handler Fans Description 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.
Ground-Source Heat Pumps Description Guide describing ground-source (geothermal) heat pumps including an overview of technology and guidance on compliance and installation.
Heat Pump Quality Installation and Commissioning Description Guide describing best practices for testing and commissioning heat pump systems using smart tools during and after installation.