storage water heater
Defined in 1 dictionary — U.S. Code
United States Code
42 U.S.C. § 6311 — for purposes of this part (6 versions over time)
The term “storage water heater” means a water heater that heats and stores water within the appliance at a thermostatically controlled temperature for delivery on demand. Such term does not include units with an input rating of 4000 Btu per hour or more per gallon of stored water.