Lennox International Inc. is an American company. Through its subsidiaries, it is a provider of climate control products for the heating, ventilation, air conditioning

HVAC

HVAC refers to technology of indoor or automotive environmental comfort. HVAC system design is a major subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer...

, and refrigeration

Refrigeration

Refrigeration is a process in which work is done to move heat from one location to another. This work is traditionally done by mechanical work, but can also be done by magnetism, laser or other means...

 markets around the world. The company was founded in 1895 by Dave Lennox

Dave Lennox

David Lennox was an American inventor and businessman. A furnace manufacturing business he founded in 1895 in Marshalltown, Iowa evolved into what is today known as Lennox International, a global corporation specializing in air conditioning, heating, and commercial refrigeration...

 and today is focused on four core businesses: Residential Heating and Cooling, Commercial Heating and Cooling, Service Experts, and Refrigeration. The company headquarters are in Richardson, Texas

Richardson, Texas

Richardson is a city in Dallas and Collin Counties in the U.S. state of Texas. As of the 2010 census, the city had a total population of 99,223. In 2011 the population was estimated to be 107,684. Richardson is an affluent inner suburb of Dallas and home of the Telecom Corridor with a high...

, near Dallas.