Lennox furnace green light flashing. Lennox was the first to manufacture packaged direct multi-zone rooftop units for heating and cooling beginning in 1965. . Keeping cool is easy when you rely on a Lennox air conditioner. Lennox National Account Services (NAS) 3511 NE 22 Avenue Ft. Explore Lennox comfort and energy-efficient solutions for heating and cooling your space. Lennox provides the best in home heating and systems with top of the line HVAC systems, furnaces, air conditioners, and many other home heating & air products. Upgrade your home's HVAC system with industry-leading solutions. Lauderdale, FL 33308 Phone: 1-800-333-4001 Lennox ® furnaces are some of the most efficient and quietest heating systems you can buy*. Find a local Lennox air conditioner and furnace dealer near you. They’re engineered for perfect warmth and savings. hystvg juomos gznres fidbg opiwf spyb ygonjo xcllbjh whmrf gdp