# Lennox to acquire HVAC division of NSI Industries for $550M

Lennox International has signed a definitive agreement to purchase the HVAC division of NSI Industries from Sentinel Capital Partners for approximately $550 million, including brands Duro Dyne and Supco.

- Type: Acquisition
- Announced: 2025-08-18
- Where: United States
- Value: $550.0M
- Status: announced
- Products: HVAC parts and supplies, HVAC/R components and accessories
- Sectors: [HVAC and Industrial Refrigeration](https://endata.com/sectors/hvac-refrigeration.md)

## Companies

- [Lennox International](https://endata.com/companies/28657.md) (acquirer)
- [NSI Industries](https://endata.com/companies/38048.md) (target)
- [Sentinel Capital Partners](https://endata.com/companies/47251.md) (investor)

## Sources

- [prnewswire.com](https://www.prnewswire.com/news-releases/lennox-signs-agreement-to-acquire-hvac-division-of-nsi-industries-302531774.html), 2025-08-18: "This acquisition strengthens our ability to deliver complete lifecycle solutions for residential and commercial customers and reinforces our position as a one-stop partner for the HVAC industry."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.