YEAR-TO-DATE: Year-to-date U.S. shipments of residential gas storage water heaters increased 8.3%, residential electric storage water heaters increased 7.2%, commercial gas storage water heaters increased 17.9%, commercial electric storage water heaters increased 9.0%, gas warm-air furnaces increased 35.4%, oil warm-air furnaces increased 29.5%, central air conditioners increased 7.4%, and heat pumps increased 20.6%.

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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.