Platinum Equity has signed a definitive agreement to sell Heat Controller to Lennox, concluding its Motors & Armatures (MARS) investment. Heat Controller, a Jackson, Michigan HVAC distributor, has expanded under Platinum through product growth and leadership changes. Separately, CSW Industrials completed the 2025 acquisition of MARS' parts division for $650 million, highlighting ongoing consolidation in HVAC distribution.
The news centers on a private-equity exit and an announced sale to Lennox; CSW exposure originates from a prior, completed transaction in 2025. No new public-company financials or guidance are provided, reducing immediate price sensitivity for CSW; indirect effects may emerge from broader HVAC consolidation trends.
CSW exposure through MARS-related assets suggests potential longer-term upside, but near-term impact is muted.
Category: M&A; this is a private-equity-driven exit with a strategic sale to a public acquirer, underscoring ongoing consolidation in HVAC distribution and the value-creation thesis of focused portfolio transformations.