Lennox manufactures furnace, air conditioners, heat pumps, boilers, air handlers, packaged systems, and ductless mini-splits. Mr. Holland’s services Lennox equipment experiencing weak airflow, uneven temperatures, short cycling, ignition trouble, refrigerant problems, unusual noises, or control failures. For new installations, we calculate the property’s heating and cooling requirements and verify that the equipment, controls, ductwork, fuel source, and electrical system can operate together correctly.