Platinum Equity, which bought Heat Controller in early 2024 as part of its Motors & Armatures, Inc. platform, has agreed to sell the HVAC equipment maker to Lennox. The Jackson, Michigan‑based supplier operates under the Comfort‑Aire and Century brands and serves distributors across North America. CEO Philip Windham will remain at the helm during the transition.

The deal, expected to close later this year, comes as Lennox seeks to broaden its product portfolio and distribution footprint in the residential and light‑commercial HVAC segments. Acquiring Heat Controller gives Lennox immediate access to established brand channels and a manufacturing base in the Midwest, potentially strengthening its competitive position against rivals such as Carrier and Trane.

With no price disclosed, the transaction underscores Platinum Equity’s strategy of building value through platform investments and then exiting to strategic buyers. Lennox’s acquisition will likely integrate Heat Controller’s product lines into its existing portfolio, offering cross‑selling opportunities and expanding its reach in key U.S. markets.

Analysts view the sale as a sign that consolidation in the HVAC supply chain is accelerating, with larger manufacturers absorbing niche distributors to achieve scale. Lennox’s move could pressure smaller players to seek partnerships or exits as the industry adapts to rising demand for energy‑efficient systems.