HVAC -

Ventilation

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

Guide describing how to insulate a vented attic in an existing home using blown insulation added to the attic floor.

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 uses, selection process, and specification of high-MERV filters.

Guide describing the types of whole-house fans, installation details to reduce energy loss, and how to operate them for comfort and energy savings based on climate zone.

This guide describes how to install a whole-building ventilation system to provide adequate dilution of indoor air contaminants.