Lennox® heat pumps are some of the most precise and efficient you can buy. Delivering effective temperature and humidity control, and efficient energy usage, Lennox heat pumps keep your home's temperature exactly where you want it. The units work like an all-in-one cooling and heating system, and are perfectly suited to warmer climates. During summer months, the heat pump works like an air conditioner, extracting heat from inside your home and moving it outdoors. When the weather turns cooler, the process is reversed as the unit collects heat from the air outside and transfers it inside. Extremely quiet and exceptionally efficient, Lennox heat pumps deliver industry-leading efficiencies of up to 23.50 SEER and 10.20 HSPF, which can help save you hundreds of dollars every year in utility costs.