This well-built drop-in water heater is useful to warm up water at shows, in the kid barn, or anywhere you need hot water and have an electrical outlet. Heats a gallon of water from 60 to 130 degrees in about 10 minutes. Good quality shockproof heater built for years of service. Much better than "donut" heaters. Do not operate unattended; no automatic shut-off. UL approved 3-wire cord with grounding plug. 1000 watts. 120 volt.