Floating de icer Thermostatically controlled with an automatic shut off Styrofoam float is completely enclosed within a rugged plastic housing The cord exits from the top of the unit giving the heater added stability and it is less likely to tip the tank 1500 watt The guards are specifically designed to protect the plastic tank The guard is made of galvanized wire, and is assembled without the use of welding The end result is a much stronger guard which is less effected by rust and corrosion