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Equipment and Installations (continued)

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Exhaust Pipes

cross-section of cabin and hull.

Cover hot exhaust pipes from engines (as well as stoves) with a solid or perforated metal shield.

Use a large metal plate or other non-flammable cover to prevent hot exhaust pipes from setting fire to the deck.

Ventilation and Backfire Control

cross-section of cabin and hull.

Many fires and explosions are caused by poor ventilation or backfire control.

For proper ventilation:

  1. Use at least one exhaust duct leading from the bilges, under the engine, to the surface.
  2. Use at least one supply duct from the surface to a level below the engine air intake.
  3. Place ducts far apart for good circulation.
  4. Ducts may be fitted with wind-activated, self-trimming or rotary heads as well as power exhaust fans.
  5. Turn on the fan at least 5 minutes before starting the engine.

Flame arrestors

Flame arrestors help prevent dangerous backfires. Clean them often with soap and water.

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Date modified:
2010-01-19