What type of extinguisher should be used to put out a fire in the engine space?

The appropriate type of extinguisher to use in the engine space of a boat is a CO2 extinguisher. CO2 extinguishers are effective because they displace oxygen and cool the fire without causing any additional damage to the equipment, which is critical in the confined spaces of an engine compartment. They are particularly suitable for electrical fires and flammable liquids, both of which could be present in an engine space.

In contrast, water extinguishers are ineffective for oil or electrical fires, as using water can spread the fire or create hazards. Foam extinguishers are more suited for flammable liquids but might not be as safe for use in confined or sensitive areas like an engine compartment. While "fire extinguisher" is a general term, it does not specify the type, and each type has its specific applications and limitations. Therefore, CO2 is the best choice for effectively addressing a potential fire situation in the engine space.