The Outdoor GreatRoom Harmony Tabletop Fire Pit is so much more than a warm, welcoming flame, although it’s that, too. The special Venturi flame technology uses a turbo disc in a tempered glass cylinder to create a beautiful spinning effect. Gel fuel similar to a sterno can burns an alcohol-based gel fuel that’s safe for use indoors or out. And that’s not all - the bora silicate chimney has an eye-catching glass and crystal base that makes any space elegant. Normal burn without Venturi effect is 1.5 hours, up to three hours without. Burns up to 9,000 BTUs when spinning. UL-listed and safety tested. About Outdoor GreatRoom CompanyWith over 50 patents to its name, the Outdoor GreatRoom Company is one of the most innovative names in gas fireplaces and outdoor design, period. Since 1975, Dan, Ron, Steve, and Ger have produced a yard of amazing products, like the Heat-N-Glo, that have changed the industry. In fact, they want to change the way you think about your backyard or patio. It"s about bringing the luxury and comfort of the living room outside to make an ""Outdoor Room."" They want you to, literally, think outside the box. To make that beautiful concept a reality, Outdoor GreatRoom designs, manufactures, and sells pergolas, outdoor kitchens, grills, outdoor furniture, fireplaces, fire pits, lighting, and heating products. There"s no better name in outdoor leisure than this fine Minnesotan company. * Tabletop fire pit with spinning flame * Bora silicate chimney * Heavy-duty glass and crystal base * Up to 9,000 BTUs * Dimensions: 13W x 13D x 15.5H in.