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Guide describing combustion furnaces with selection and installation guidance.

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

Guide describing the planning and installation process for Heat Pump Water Heaters (HPWHs) in single-family homes, including model selection, installation location, thermal resource adequacy, and condensate removal.

Guide describing causes of condensation in attics and roof assemblies during cold weather and ways to reduce this condensation.

Guide describing the split system heat pumps used for central forced air heating and cooling.

Guide describing ways to construct wall assemblies in cold climates to minimize the likelihood of condensation formation inside the walls.

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 insulation techniques for skylight shaft walls.

Guide providing information about treating bulk water drainage issues and moisture control measures in existing basements and crawl spaces.

Guide describing how to air-seal and insulate the floor above an unconditioned basement or crawl space.

Guide describing strategies for effectively utilizing integrated consumer heat pump water heaters (HPWH) in multifamily buildings.

Guide describing how to correctly air-seal a wall with missing top plates or open wall cavities.

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

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

Guide describing condensing clothes dryers, which have a secondary heat exchanger and do not require exterior venting.

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

Guide describing how to design or retrofit a crawlspace to reduce the risk of damage during a flood event.

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

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 construct flood-resistant homes using pier, pile, post, or column foundations.

Guide describing how to provide a continuous water control layer across the roof assembly by sealing all penetrations for pipes, vents, etc. in existing roofs.

Guide describing application of a radiant barrier layer in the attic to block radiant heat transfer between hot surfaces and heat-absorbing surfaces.

Guide describing methods for providing space cooling and refrigeration during extreme heat events and/or power outages.

Guide describing how to create a designated shelter-from-heat space in a home to help occupants successfully weather an extreme heat event.

Guide describing various ways of implementing passive and low-energy cooling techniques for a house.

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

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

Guide describing how to install a capillary break to help manage moisture in foundations.

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

Guide describing how to create a capillary break at all crawlspace floors using polyethylene sheeting to manage moisture in crawlspaces.

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

Guide describing ways to construct a raised-slab foundation to increase a home's resistance to floods.

Guide describing installation of a fully sealed continuous weather resistant barrier to provide a drainage plane to keep rainwater out of above-grade walls.

Guide describing how to install energy efficient refrigerators in new and exisitng homes.

Guide describing the principal of compartmentalization in multifamily buildings - the separation of dwelling units from each other and from common areas in terms of air flow. Locations where air-sealing is critical to maintain separation of air spaces and air-sealing methods especially for party walls are also described.

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

Guide describing ways builders can block off entry points and otherwise make homes inhospitable to all manner of pests.

Guide describing how to use a blower door test to determine building envelope air leakage.

Guide describing how to install low-e interior storm windows.

Guide describing the installation of a tankless hot water heater to provide domestic hot water that is heated on demand without the standby losses associated with tank storage water heaters.

Guide describing how to install low-e exterior storm windows.