YEAR-TO-DATE: Year-to-date U.S. shipments of residential gas storage water heaters increased 5.8%, residential electric storage water heaters increased 2.9%, commercial gas storage water heaters increased 2.3%, commercial electric storage water heaters decreased 6.4%, gas warm-air furnaces increased 52.8%, oil warm-air furnaces increased 38.1%, central air conditioners increased 14.2%, and heat pumps increased 16.9%.

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SOURCE: Information contained in these graphs is courtesy of the Air-Conditioning, Heating, and Refrigeration Institute (AHRI). Industry figures are estimates that are derived from the best available figures supplied by a sample of AHRI member companies.