Lennox 16W72 Gas Furnace Twinning Kit

The Lennox 16W72 Gas Furnace Twinning Kit is used to link two gas-fired furnaces that are installed in a duct system and that should be controlled by a single thermostat. This kit is especially useful for single and two-stage heating and cooling systems, which improves the efficiency of the HVAC system configurations and allows for the operation of both furnaces at the same time. There are five relays, quick disconnect terminals, self-tapping screws, and the installation manual to help in the integration of the kit into other systems.