According to a BSRIA report, the market volume of ATW cylinder-integrated heat pumps amounted to 82,000 units in the United States in 2015. Most ATW heat pumps sold in the United States are cylinder-integrated ATW models, and few monobloc or split-type ATW heat pumps are sold in the country.
While parts of the Northeastern Seaboard and West Coast have a culture of radiator heating, high-priced ATW heat pumps are not yet a common product in the United States. Demand is typically only found in places that lack gas infra-structure or where electricity rates are cheap. Moreover, the U.S. shale gas development is making already inexpensive gas even cheaper. This has created a more challenging business environment for ATW heat pumps, which must compete against gas boilers with cheap running costs.