Direct Vent Equipment Description Guide describing categories of direct-vent combustion space- and water-heating equipment and combustion safety testing.
Combustion Furnaces Description Guide describing combustion furnaces with selection and installation guidance.
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.
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.
Bathroom Exhaust Fans Description Guide describing how to install a bathroom exhaust fan to remove excess moisture.
Thermostatic Radiator Valves on Steam Heating Systems Description Guide describing how to analyze boiler and building performance and install thermostatic radiator valves (TRV) to reduce temperatures in over heated spaces.
Compact Air Distribution Description Guide describing design and installation of compact duct systems for central heating and cooling systems.