In 1895, Dave Lennox single-handedly elevated the standard of American living by pioneering the riveted-steel furnace. Working from his machine shop in Marshalltown, Iowa, Dave Lennox began building the first Lennox® furnaces and joined legendary inventors like Bell and Edison in laying the foundation for the 20th century.
As Dave Lennox paved the way for modern indoor comfort, he put together a solid formula for long-term success. At the heart of this formula is a focus on innovation, hard work and sound business practices. It is this vision that has kept Lennox at the forefront of the HVAC industry for more than 100 years.
Today, the Lennox name is recognized throughout the world for quality indoor comfort. So when you see the Lennox label, you know you can count on exceptional performance and reliability. Our name and the image of our founder Dave Lennox represent more than a hundred years’ tradition of creating the industry’s finest, most innovative heating, cooling and indoor air quality products.
Experience an interactive timeline of Lennox’ history and highlights.
The U.S. Department of Energy selected Lennox' L Series® RTU for outstanding energy efficiency.
