Features: Low Fuel Consumption Just one refueling provides constant heat for about a full day. Very economical due to low fuel consumption. High heat output High heat output makes it usable even in extremely cold places with temperatures as low as -40C. The thermal heater can also be used normally in the cold area of -40. The glass temperature can reach 55C-70C. The durable safety heater is made of zinc alloy with a polished surface and a surface coating. It's easy to use. Application: This heater is perfect for cold protection, therapy, skiing, camping and hunting. Suitable for daily life in cold season, outdoor and field work, outdoor sports, travel. Notebooks: Use products derived from oil for lighters. Do not use gasoline, alcohol, kerosene, etc. To ensure the service life of the convenience heater. Specification: Type: Handheld Heater Material: Zinc alloy fuel Consumption: about 1.5 hours/hour Catalyst life: about 1500 hours Fire 100 times Surface temperature: 55C-70C Size: 9.5x6 .8*1.6cm/3.7*2.7* 1.6 Inch Net Weight: 66.0g/2.33oz