Combustion Furnaces Description Guide describing combustion furnaces with compliance and installation guidance.
Ducts in Dropped Ceilings Description Guide describing method for installing ducts in a duct chase above a dropped ceiling.
Gas-Fired Boilers Description Guide describing gas-fired boilers and hot water heat distribution systems used for home heating.
Ground-Source Heat Pump Foundation Heat Exchanger (FHX) Description Guide describing sizing and installation of foundation heat exchangers, which can be connected to a heat pump system used for spacing conditioning as well as domestic water heating.
Oil-Fired Boilers Description Guide describing oil-fired boilers and hot water heat distribution systems used for home heating.
Whole-House Dehumidification Description Guide describing options for adding dehumidification equipment to a home to maintain indoor relative humidity below 60%.