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Retrofitting older buildings with modern HVAC solutions is a growing market opportunity, particularly for multifamily and public housing. Gradient's approach of using window units with integrated software addresses the specific needs of legacy infrastructure.

Impact: Companies in the energy sector can find significant growth in the retrofit market by offering scalable, non-invasive solutions for older properties.

— from TikTok Resilience and Gradient HVAC Innovation · TechCrunch Daily Crunch· Feb 04, 2026