The vertical thermal chimneys on the DeLonghi MG7307CM Comfortemp Oil Filled Radiator maximize heat flow while maintaining a low, safe-to-touch surface temperature. Convenient, pre-mounted smart-snap wheels ensure safety and stability. With their patented design, they snap into place perfectly, with no assembly or tools required. The DeLonghi MG7307CM Comfortemp Oil Filled Radiator has 3 heat settings and an adjustable thermostat to let you adjust output levels, optimizing the unit's energy-efficient operation. 7 oil-filled fin heating elements provide larger heating capacity. This permanently sealed DeLonghi MG7307CM Comfortemp Oil Filled Radiator never needs refilling! Unit is permanently sealed with pure diathermic oil for stable and efficient heating. The wrap-around cord design lets you store cord when heater is not in use.