Combustion Furnaces Description Guide describing combustion furnaces with compliance and installation guidance.
Condensing Boilers Description Guide describing condensing boilers and hot water heat distribution systems used for home heating.
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.
Gas-Fired Boilers Description Guide describing gas-fired boilers and hot water heat distribution systems used for home heating.
Gas-Fired Tankless Water Heaters Description Guide describing how to install a tankless hot water heater in a new or existing home to provide domestic hot water that is heated on demand without the standby losses associated with tank storage water heaters
Traditional Split Heat Pumps Description Guide describing the split system heat pumps used for central forced air heating and cooling.