Can You Use a Fire Extinguisher for Heat?

Choosing the Right Extinguisher

When stranded with a vehicle fire or overheating engine, having the right type of fire extinguisher is crucial. Look for a Class B fire extinguisher, which is designed to fight fires involving flammable liquids, such as gasoline, oil, and grease. These extinguishers are often labeled with a picture of a flammable liquid and the words “Class B” or “B:C” (for both Class B and Class C fires, where C is for electrical fires).

Using the Extinguisher Safely

To use a fire extinguisher safely, remember the PASS method: Pull the safety pin or ring to release the lock, Aim the nozzle or hose at the base of the fire, Squeeze the handle to release the extinguishing agent, and Sweep the nozzle or hose back and forth, covering the entire area of the fire. For a vehicle fire, aim the extinguisher at the base of the fire, where the fuel is most likely to be. For an overheating engine, aim at the engine block or radiator. Move quickly and calmly, and never fight a fire that is too large or spreading too quickly.

Additional Safety Precautions

When fighting a vehicle fire or overheating engine, wear protective clothing, including gloves, safety glasses, and a fire-resistant jacket. Never put yourself in harm’s way or risk injury by trying to fight a fire that is too large or spreading too quickly. If the fire is too large or spreading rapidly, evacuate the area and call for professional help.