BASC Search

Guide describing the testing of duct leakage in central ventilation systems for multi-story, multi-family buildings.

Guide describing the retrofit of kitchen exhaust systems, including duct sizing and routing considerations.

Guide describing how to conduct duct leakage tests per RESNET protocols on all components of the HVAC system (including the air handler, ductwork, register boxes/boots, and all air devices such as diffusers, registers, or grilles).

Guide describing how to hang HVAC ducts with supporting straps or saddles to adequately support ducts so they do not sag and are not pinched or compressed.

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

Guide describing how to install jump ducts in bedroom walls to balance air pressures between rooms, enabling stale air to return of the central air handler, even when room doors are closed.

Guide describing the use of building cavities as supply or return ducts.

Guide describing how to air seal and insulate flex ducts.

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

Guide describing how to air seal and insulate metal ducts.

Guide describing the use of ducted returns to return stale air from bedrooms and bathrooms to a central heating system.

Guide describing how to design HVAC systems to be located within the conditioned space of the home, either in a utility closet or in an attic, basement, or crawl space.

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

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

Guide describing how to correctly install flex ducts without excessive coils or loops.

Guide describing how and where to install ducts, to ensure enough cavity space to avoid compression of the flex ducts or duct insulation.

Guide describing the use of building cavities as supply or return ducts.

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

Guide describing how to air seal and insulate fiber board ducts.

Guide describing how to install transfer grilles in bedroom walls to balance air pressures between rooms and to enable stale air to return to a central heating system.