Number of heating, ventilation, air-conditioning, and refrigeration (HVAC-R) units certified by Energy Star shipped in the United States in 2023, by type (in 1,000s)

The type of Energy Star HVAC-R equipment with most shipments in 2023 were for refrigeration. HVAC-R stands for heating, ventilation, air-conditioning, and refrigeration. These figures do not refer to all shipments of HVAC equipments or devices, but just to those certified by Energy Star. California was the U.S. state with plumbing and HVAC contractor establishment.