It has been used only a few times, because I bought it to warm a room for occasional visits from my grand-children.  It is the safest heater I could find to trust with children. Perfectly working. It works well also with a 2-prong adaptor outlet. Please read the following specifications. The price indicated is actually what it costed to me.  I'd  be willing to sell it for one third of what I paid for. You are welcome to check it out at my house in Highland Park. Thank you very much for your attention. Best wishes, Marilena Betancourt         412 661-5764                         EdenPURE EdenPURE A4137 Personal Space Heater, Heats Up To 300 Sq. Ft. Sears Item# SPM1661451101 | Model# A4137 $299.00 Read full description...Perfect for a bedroom or office, the EdenPURE Personal heater moves easily from room to room. Our Personal Heater heats any space up to 300 square feet. Model EdenPURE Personal Heater Area: Up to 300 square feet Dimensions: 14" H x 11.25" W x 13.5" D Amps: 6.3 Watts: 900   110v 3-prong outlet   * On/Off Switch * Temperature Adjustment Panel located on back of unit * Electronic Thermostat: range 60 to 86 degrees * Filter can be cleaned with warm water or a vacuum once removed from the back of the unit * Modular design - galvanized steel inside * ABS copolymer cabinet * Rated at approximately 2300 BTU * Uses 3 commercial infrared quartz tubes * Uses 1 copper heat exchangers * Conserves energy compared to most heaters * Listed by Underwriters Laboratories (UL) No. E307136 Using zone heating our Personal Heater can keep you comfortable and reduce heating bills. And if you are able to delay firing up your large central furnace until the weather turns much colder, your savings can be substantial. The EdenPURE Personal Heater can pay for itself in a matter of weeks and then start putting a great deal of extra money in your pocket after that. And that's just the start of the benefits for EdenPURE's Infrared Heater.  The EdenPURE Personal Heater comes in the decorator color of black with burled wood accents and heats a room up to 300 square feet.