Being a fire warden also entails having a basic understanding of the types of fires there are. Class A fires involve solid materials such as wood, paper, rubber, plastic and cloth. Class B fires involve flammable or combustible liquids, such as petrol, oil and paint. Class C fires involve flammable gases, such as propane, butane and methane. Class D fires involve flammable metals, such as potassium, aluminium and titanium. Class F fires involve cooking oils and fats. It is important to be aware of the different fire classes so that you can effectively deal with them should the need arise. Having fire safety training can help you to become familiar with the different fire classifications and how to best extinguish them.