Floor lamp electric patio heater Northgate. The Northgate floor lamp style electric patio heater. It is 63 inches tall. This beautiful electric heater can heat up to 12 feet diameter. It is perfect for cool evenings. This heater has a 1,200 W halogen bulb which is equivalent to approx. 4,095 BTUs of heat. It has 8 Ft. cord that uses a standard 120V grounded outlet. It has an automatic shutoff tilt switch. It is made with weather resistant hardware. It requires simple assembly.