HVAC -

Ventilation

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

Guide describing how to install ducted returns in bedroom walls to balance air pressures between rooms and to enable stale air to return to a central heating system's air handler for reconditioning even when room doors are closed.

Guide describing the use of electronically commutated motors (ECMs) in HVAC central air handler fans to reduce power consumption compared to a single-stage fan motor.

Guide describing how to upgrade or expand an existing HVAC system.

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

Guide describing requirements and best practices for mechanical garage exhaust in multifamily buildings.

Guide describing best practice venting strategies for existing steam heating systems in multifamily buildings.

This guide presents central and individual dwelling unit ventilation and exhaust strategies for multifamily construction.

Guide describing how to select and install whole-house ventilation systems for existing homes.