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The Hot-Kold was the result of a partnership between the refrigeration company Frigidaire and General Iron Works, which made furnaces. Unaffordable for most people during the Great Depression, it didn’t last long. 

Despite the hype around AI search, Google Business Profiles still drive 67% of total contractor revenue 

DOE is taking over the ENERGY STAR program, a move that could change how efficiency tiers align with federal standards and how quickly HVAC equipment certifications are updated. 

A petition filed on behalf of Choice Refrigerants asks the Supreme Court to reconsider a D.C. Circuit ruling that upheld the EPA’s implementation of the HFC phasedown program. 

Daikin says with inverter adoption expanding, heat pumps gaining share, and data center cooling expected to triple by 2030, the shifts could reshape how contractors plan for future installs and training.