Guides A-Z

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

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

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

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

Guide describing how to air seal and insulate flex ducts.

Guide describing how to air seal and insulate metal ducts.

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

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.

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

Guide describing how to conduct duct leakage tests per RESNET protocols.

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

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's air handler for reconditioning even when room doors are closed.

Guide describing how to undercut the doors 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.

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

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

Guide describing options for adding dehumidification equipment to a home to maintain indoor relative humidity below 60%.