Lennox® gas and oil furnaces promise unsurpassed comfort. Innovative design and technology automatically adjusts outputs in precise and minute increments to hold temperatures exactly where you want them. As quiet as they are efficient, Lennox furnaces combine advanced technology, engineering and sound-absorbing insulation to ensure whisper-quiet operation. Offering industry-leading efficiencies, Lennox furnaces can help save you hundreds of dollars in utility costs every year. Some Lennox furnaces are ENERGY STAR® certified, which may qualify you for federal energy tax credits and local utility rebates. No other manufacturer can match our products for efficiency, comfort, precision, quiet and customer satisfaction. Available in variety of types, from a variable-capacity gas furnace to a two-stage gas furnace, and a variety of oil furnaces, Lennox offers a range of options to meet everyone’s heating needs.