U.S. shipments of residential gas storage water heaters for June 2021 increased 9.3 percent, to 449,815 units, up from 411,726 units shipped in June 2020. Residential electric storage water heater shipments increased 6.2 percent in June 2021 to 440,104 units, up from 414,469 units shipped in June 2020. Year-to-date U.S. shipments of residential gas storage water heaters increased 11.5 percent, to 2,471,772 compared to 2,217,780 shipped during that same period in 2020. Residential electric storage water heater shipments increased 9.8 percent year-to-date, to 2,445,529 units, compared to 2,226,268 shipped during the same period in 2020.