Lennox International has been built on a heritage of integrity and innovation dating back to 1895. We are dedicated to providing trusted brands, innovative products and unsurpassed quality with responsive service. We are a Fortune 500 company and a world leader in residential and commercial heating, cooling, ventilation and refrigeration systems. We have started our operations in India in Chennai in 2010. his Chennai centre is a R& D centre with Mechanical Analysis , Embedded software, hardware and IT divisions.