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Pre-Retrofit Assessment of Ventilation Systems

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

Home Performance Assessment

Information guide describing how to apply a whole-house approach to home improvement with energy efficiency upgrades, improved indoor air quality, and increased comfort.

Pre-Retrofit Assessment of Existing HVAC Systems

Information guide describing considerations for before retrofitting HVAC systems, retrofit scope considerations, and HVAC system replacement options.

Air Sealing the Air Handler Closet

Guide describing the repair and reconfiguration of the air handler closet and platform when replacing the air handler.

Direct Vent Equipment

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

Condensing Boilers

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

Combustion Furnaces

Guide describing combustion furnaces with selection and installation guidance.

Gas-Fired Boilers

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