BU-KO Patio Gas Heater Stainless Steel with Bluetooth. This pyramid-shaped outdoor heater is powered by propane gas and displays an attractive open flame safely contained in a quartz glass tube. Its column design and pagoda-shaped reflector atop the unit helps maximum heat and warmth radiate and spread out over a 10-foot radius. EASY TO ASSEMBLE & USE – Our portable heater now comes with a step by step assembly video guide to make assembly quick and simple! CERTIFIED SAFE – These elegant yet functional garden heaters are CE approved, meeting strict European manufacturing safety standards. It has a built-in safety valve that automatically shuts off the heater’s fuel supply if tilted. There is also a safety netting to protect you from the flames.