The DeLonghi Magnum oil filled radiator combines a 35% larger radiant surface with the efficiency of fast moving heat. The Magnum is more effective in heating a room than ordinary oil filled radiator heaters. Its patented honeycomb fin construction with 24 vertical hot air chimneys harnesses the power of convection and radiation, drawing cold air in from the bottom, rapidly heating it and noiselessly moving it out through the top at a comfortable 163F (73FC). -Heats rooms up to 180 square feet in less time than similar sized oil filled radiators. -Features room monitoring, energy saving thermostat that automatically maintains your desired room temperature. -Three variable heat settings with indicator lights, allows you to control comfort and BTUs. -Provides noiseless operation - quiet enough for a babys bedroom. -Permanently sealed with pure diathermic oil (never needs refilling) for stable and efficient heating. -Durable metal construction with no exposed elements, cool grip handle, 25% lower surface temperature and no sharp edges. -Built-in Timer for convenient on/off operation -Exceeds U.S. and international standards.