HVAC -

Ventilation

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

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

Guide describing how to insulate a basement to improve the overall thermal performance of the building and provide more dry, usable conditioned space for home occupants and for HVAC equipment.

Guide describing how to air seal bathroom and kitchen exhaust fans.

Guide describing how to install back-draft dampers in exhaust fans to make a shared duct possible.

Guide describing how to install a bathroom fan to remove excess moisture, cleaning chemical fumes, etc.

Guide describing the bathroom exhaust fan ENERGY STAR rating requirements.

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

Guide describing correct ducting for exhaust fans.

Guide describing how to select low-sone supply and exhaust fans for quiet, continuous operation.

Guide describing how to install continuously operating exhaust fans.

Guide describing the installation of roof vents that are resistant to damage from high winds and entry of wind-borne rain, wildfire embers, or pests.

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.

Home owners who use an HVAC system with a central air handler fan can realize significant energy savings by using a fan with an electronically commutated (ECM) motor (see Figure 1). Savings will be even larger for homeowners who run the HVAC fan continuously or frequently to filter the air or to...

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 sizing and installation of foundation heat exchangers, which can be connected to a heat pump system used for spacing conditioning as well as domestic water heating.

This guide describes the uses, selection process, and specification of high-MERV filters.

Guide describing how to choose ENERGY STAR fans.

Guide describing how to install efficient kitchen exhaust systems.

Kitchen exhaust ventilation, properly ducted to the outside, is an essential component of good indoor air quality (Figure 1). Research has identified kitchens as the primary location where most harmful pollutants are generated in the home. During the cooking process, moisture and pollutants are...

Guide describing steps to take to minimize indoor humidity in preparation for cold winter weather.

Guide describing mechanical ventilation tools and methods required for accurate airflow measurement.

Guide describing how to install an exhaust fan in an attached garage to pull fumes out of the garage and to depressurize the garage with reference to the home.

Guide describing how to install obvious ventilation controls.

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

Guide describing how to correctly vent a clothes dryer.

Guide describing how to install a radon mitigation fan with various types of house foundations.

Guide describing steps to keep birds, rodents, and other pests out of vent openings and other locations in new and existing homes.

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

Guide describing design of a mechanical ventilation design to enable accurate measurement of ventilation system airflow.

Guide describing options for designing and locating the thermal boundary at either the attic floor or along the roof line in new and existing homes.

Guide describing how to install ventilation air inlets in open locations at a safe distance from potential air contamination sources.

Guide describing how to install a radon-mitigating vertical ventilation pipe in new and existing homes with various types of house foundations.

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

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.