The partnership combines Lennox's strength in residential distribution and customer relationships with Ariston Group's advanced water heating technology and manufacturing footprint, to launch water heaters that will carry the Lennox brands. DALLAS, May 27, 2025 /PRNewswire/ -- Lennox (NYSE: LII), a leader of innovative climate solutions in the HVACR industry, and Ariston Group (Bloomberg: ARIS IM), a global leader in sustainable climate and water comfort, have entered into a joint venture that will bring a ...