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.
Creating a Cool Room for Extreme Heat Events Description Guide describing how to create a designated shelter-from-heat space in a home to help occupants successfully weather an extreme heat event.
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.
Integrated Heating and Hot Water with Tankless Gas or Electric Water Heating Description Guide describing installation procedures for combined space and water heating systems.
Outdoor HVAC Equipment Elevated and Secured for Resistance to Floods, Earthquakes, and High Winds Description A guide describing how to elevate and secure HVAC equipment for protection against floods, earthquakes, and high winds.