Yinleader portable gas heater (dual use). It can be connected to a butane gas cylinder or an external liquefied gas tank. Free external gas connector. ---------------------------- Use of this heater: It is recommended for outdoor heating or heating. It is not recommended to use in confined spaces. Especially avoid using it unattended. There are instructions in the box, if you don?t have it or you need other languages, please contact the seller to send the corresponding instructions. -Material: steel, ceramic heater. -Dimensions: 29 x 29 x 20 cm. -Weight: 2.35 kg. -Heat output: 1.3 kW -Air consumption: 160 g/h. If the heater does not turn on the first time, try again to make sure that the control button is fully turned and that the air cylinder is connected properly. If it is connected correctly, it still cannot be opened. Please contact the seller after sale. What do you get: 1 A dual-purpose gas heater 2 a manual 3 Free one external connector