08:32 AM EDT, 08/18/2025 (MT Newswires) -- Lennox International ( LII ) said Monday it has agreed to acquire the HVAC division of NSI Industries from Sentinel Capital Partners for $550 million.

The acquisition includes well-known brands such as Duro Dyne and Supco, which produce essential HVAC components and technician-focused parts, the company said.

The deal, expected to close in Q4, strengthens Lennox's North American distribution, manufacturing, and digital capabilities while broadening its product offerings for both residential and commercial markets, it added.