Guides A-Z

Guide describing the installation of boiler controls in multifamily housing.

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

Guide describing sizing methods for cold climate heat pumps.

Guide describing how to conduct combustion appliance zone testing.

Guide describing combustion furnaces with selection and installation guidance.

Guide describing design and installation of compact duct systems for central heating and cooling systems.

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

Guide describing how to install a corrosion-resistant drain pan in condensate-producing HVAC equipment.

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

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 ductless heat pump systems used for single-room or whole-house heating and cooling.

Guide describing buried ducts in loose-fill attic insulation, a method that can only be used in dry climates.

Guide describing approaches to burying and encapsulating ducts in unconditioned attics to increase the overall R-value of duct insulation.

Guide that illustrates how and when to encapsulate ductwork in unconditioned attics, increases the R-value of duct insulation, mitigating condensation issues and reducing air leakage.

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

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.

Guide describing ground-source (geothermal) heat pumps including an overview of technology and guidance on compliance and installation.

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

Guide describing how to thoroughly seal HVAC ducts to ensure air delivery without leakage, and to ensure economical and quiet performance of the HVAC system.

Guide describing how to properly insulate garages in multifamily buildings.

Guide describing installation procedures for combined space and water heating systems.