BASC Search

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

Guide describing how to correctly vent a clothes dryer.

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

Guide describing combustion furnaces with selection and installation guidance.

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

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

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

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

This guide describes evaporative cooling technologies which can be used to cool homes in dry climates.

Guide describing how to install a bathroom exhaust fan to remove excess moisture.

Guide describing how to install efficient kitchen exhaust systems.

Guide describing how to analyze boiler and building performance and install thermostatic radiator valves (TRV) to reduce temperatures in over heated spaces.

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

Guide outlining how to correctly install flex ducts without kinks or sharp bends.

Guide for designing and installing interior ducts in an interstitial floor cavity in new and existing homes.

Guide describing how to properly ventilate un-vented combustion appliances such as sealed fireplaces.

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 air seal and insulate flex ducts.

Guide describing how to air seal and insulate metal ducts.

A guide describing how to elevate and secure HVAC equipment for protection against floods, earthquakes, and high winds.

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

Guide describing how to hang ducts with supporting straps or saddles to adequately support ducts so they do not sag and are not pinched or compressed in a manner that would cause damage to the ducts, the duct insulation, or the duct air barrier covering.

No outdoor air intakes connected to return side of the HVAC system, unless controls are installed to operate intermittently & automatically based on a timer and to restrict intake when not in use (e.g., motorized damper)

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

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

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

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 method for designing and installing ducts in a raised ceiling chase.

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

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 refrigerant-based compression-cooling air conditioning systems for space cooling.