DESC: Sit back and relax in the warmth of the Qmark HBB750. This worry free baseboard heater is perfect for households with kids and pets. A sheathed electric heating element is totally immersed in a heat-transfer liquid and sealed in a heater-length copper tube. The large diameter reservoir maximizes the volume of heat storage fluid to prolong the thermal constant of the entire heater. Gentle heat keeps radiating even after the thermostat turns off because of the hydronic elements retention qualities. The entire unit mounts flush to any wall and flat on any floor - wood carpet or tile. The trim three-inch thick functional design and low operating temperatures allow carpeting to be installed up to and around the baseboard. Heavy-duty welded steel louvered grilles discourage insertion of foreign objects and direct heat outward into the room. Built-in cut-off automatically shuts down the heater should any overheating occur.