Guides A-Z

Guide describing how to properly test the air barrier between the garage and house, and how to ensure the air barrier is tight enough to prevent garage air from entering the home.

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

Home owners who use an HVAC system with a central air handler fan can realize significant energy savings by using a fan with an electronically commutated (ECM) motor (see Figure 1). Savings will be even larger for homeowners who run the HVAC fan continuously or frequently to filter the air or to...

Guide describing how to provide combustion air for fireplaces and how to test fireplaces for combustion safety.

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 install an exhaust fan in an attached garage to pull fumes out of the garage and to depressurize the garage with reference to the home.

Guide describing how to install a radon mitigation fan with various types of house foundations.

Guide describing how to select and install whole-house ventilation systems for existing homes.

This guide describes how to install a whole-building ventilation system to provide adequate dilution of indoor air contaminants.