Guides A-Z

Guide describing combustion furnaces with compliance and installation guidance.

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

Guide describing how to upgrade or expand an existing HVAC system.

Kitchen exhaust ventilation, properly ducted to the outside, is an essential component of good indoor air quality (Figure 1). Research has identified kitchens as the primary location where most harmful pollutants are generated in the home. During the cooking process, moisture and pollutants are...

Guide describing how to correctly vent a clothes dryer.

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