Spiral Design with a high-quality canvas cover for gas tank Extremely fuel-economical 12kw propane heater can heat up to 20 feet in diameter Sensor Shut off Adjustable Heat Regulator Integral Wheel System- move unit effortlessly to any location Spending relaxing time on your patio in winter has never been easier! A top-quality outdoor gas patio heater the Spiral Evolution Patio Heater is made from high-quality stainless steel which will never rust. A combination of sleek stylish design and easy portability this heater is the perfect addition to any outdoor space. It also has its own cover so you can store it safely when not in use. The Spiral Evolution Patio Heater easily converts to a through-table heater! Easy to follow instructions and all necessary hardware are included. Use with a 20lb or 30lb propane tank not included.