This tabletop heater earned The Best rating from the Hammacher Schlemmer Institute due to its superior performance in all tested categories. During evaluations, it raised an 81' sq. room’s temperature by an average of 13.65° F after only 15 minutes, while lesser units only warmed the room by 5.5° F. It was also rated as the easiest unit to use thanks to a clear LCD panel, programmable thermostat, and scheduling/timer options. This unit also received the highest marks for construction and quality due to its strong metal grate, tip-over protection, and overall stability. The Best model was also lauded for its features including two heat settings (1,000-watts or 1,500-watts) and an oscillating option. It can be operated from its easy-to-use control panel, a free app (on a device with iOS 8 and above), or a home’s Alexa or Google Assistant (requires a secure home Wi-Fi). AC plug. 18" H x 9" W x 8 1/4" D. (6 lbs.)