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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 how to conduct combustion appliance zone testing.

Guide describing combustion furnaces with compliance and installation guidance.

Guide describing how to choose and install a carbon monoxide alarm.

Guide describing condensing boilers and hot water heat distribution systems used for home heating.

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

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

Guide describing gas-fired boilers and hot water heat distribution systems used for home heating.

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

Guide describing how to conduct a home performance assessment before beginning retrofit projects in existing homes.

Guide describing oil-fired boilers and hot water heat distribution systems used for home heating.

Retrofit guide describing how to assess harmful gasses such as carbon monoxide, sulfur oxides, nitrogen oxides, and soot from existing combustion appliances.

This guide can help you assess an existing Heating, Ventilation and Air Conditioning (HVAC) system for potential intervention such as repair, upgrade or expansion, or replacement.

Guide describing how to evaluate existing ventilations systems before performing home upgrades.

Information guide describing how to perform a thorough visual evaluation of walls, windows and doors before proceeding with renovation projects.

Guide describing how to properly ventilate un-vented combustion appliances such as sealed fireplaces.