HVAC -

Ventilation

Guide describing air-sealing of the seams and holes in HVAC air handler and furnace cabinets.

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

Guide describing correct ducting for exhaust fans.

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 how to upgrade or expand an existing HVAC system.

Guide describing the retrofit of kitchen exhaust systems, including duct sizing and routing considerations.