Who We Are: Lennox (NYSE: LII) Driven by 130 years of legacy, HVAC and refrigeration success, Lennox provides our residential and commercial customers with industry-leading climate-control solutions. We bring together the collective strengths of seven comfort brands – Armstrong Air, AirEase, Concord, Ducane, Allied, Allied Commercial and Magic-Pak to give distributors and dealers the ultimate source for heating and cooling solutions.