3 L capacity for the petroleum cooker. A pot of oil can be used for 10 hours. The maximum fire is about 1.4 litres per hour. It is economical and practical. The burner oil nozzle is removable and suitable for 1-2 people. The 3 litre oil barrel cannot be filled to the top; leave space to allow air expansion. How to use: Step 1: Unscrew the lid of the bucket and add about 1 pound of oil, clean the oil barrel, then pour half a barrel of oil and tighten the lid to avoid air leakage. Step 2: Pump the air into the middle green area. Step 3: Spray a small amount of oil from the oil nozzle, flow into the small preheating plate, then turn off the switch. Preheating and operation: Easy and fast preheating, preheating by lighting the preheating plate, burning with strong fire, easy to use and can withstand long-term use. This oil stove can only burn diesel or kerosene; petrol is prohibited. Applications: This oil cooker, which can actually cook food, is suitable for small outdoor construction sites, for fishing and outdoor picnics, for self-driving mountaineering, for picnics, and is an ideal choice for vehicles.