Guides A-Z

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

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 the use of building cavities as supply or return ducts.

Guide describing compression cooling air conditioning systems for space cooling.

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 air sealed conditioned attic, basement, or crawl space.

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

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

This guide describes proper installation of high-MERV furnace and air-handler filters.

This measure guide describes how to correctly install ducts, ensuring enough cavity space to avoid compression.

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.