Direct Vent Equipment Description Guide describing categories of direct-vent combustion space- and water-heating equipment and combustion safety testing.
Fireplaces and Wood Stoves Have Proper Ventilation Description Guide describing how to provide combustion air for fireplaces and how to test fireplaces for combustion safety.
Whole-House Dehumidification Description Guide describing options for adding dehumidification equipment to a home to maintain indoor relative humidity below 60%.