Fixed-Mounted Suppression Systems
Many boats are equipped with a fixed-mounted automatic fire-suppression system in the engine space. Because of their fixed nature, and the fact that they're essentially out of sight, people are likely to ignore the routine maintenance and checks that should be conducted to ensure that this equipment functions properly when needed.
These systems can vary in their sophistication, depending on the size of the engine room, which, on larger boats, may include other machinery, such as generators. Bigger boats, for example, may have a single extinguishing-agent bottle with multiple discharge nozzles that are plumbed using copper tubing. The multiple nozzles permit coverage of a more extensive area. Most modest-sized cruising boats, however, will have a single bottle and discharge nozzle near the engine; these closely resemble a standard fire extinguisher.