The PrimeGlo HIL-1821 Tabletop Patio Heater is for indoor / outdoor use and 1500 watts heats up to a 1000 sq ft area. It's adjustable height makes this heater versatile while it's stainless steel finish makes it the perfect addition to nearly any decor. The HIL-1821 also features a safety anti-tilt switch, variable temperature control and is quick / easy to assemble.