Boats and the CO risk

Carbon monoxide poisoning is a serious concern on boats, and it's essential for individuals who enjoy maritime activities to be aware of the potential dangers.

Boats and yachts often have fuel-burning appliances for cooking or heating. Poorly maintained or improperly used marine appliances can contribute to carbon monoxide buildup in confined spaces.

Boats have small living spaces, much the same size as a small bedsit. However, they are also sealed containers, essential for keeping water out, but also equally effective at retaining gases and fumes.

Many boats have multiple potential sources of fire and carbon monoxide. They may also have multiple engines and appliances for cooking, heating and lighting. Some of these will be powered on or in use whilst occupants are sleeping.

Below is an overview of the risks associated with carbon monoxide poisoning on boats.

These include.

Engine Exhaust

Generators and Appliances

Moored or Docked Boats

The primary source of carbon monoxide on boats is the engine exhaust. Boat engines produce carbon monoxide as a byproduct of combustion.

Improper ventilation can lead to carbon monoxide accumulation in enclosed spaces.

Ensure that boat engines are well-maintained, and never swim or stay near exhaust outlets while the engine is running. Install carbon monoxide detectors in enclosed spaces.

Boats may have generators, stoves, or other appliances that burn fuel, emitting carbon monoxide. Poorly ventilated areas can trap carbon monoxide and lead to poisoning.

Properly maintain and regularly inspect generators and appliances. Use them in well-ventilated areas or open spaces. Avoid using them in cabins.

Even when a boat is stationary and moored or docked, carbon monoxide can be a hazard if the engine or generator is running. It can accumulate in enclosed cabins or living spaces.

Turn off the engine or generator when moored or docked. Avoid sleeping in enclosed spaces while the engine or generator is running.

Below is an overview of the precautions to take to prevent carbon monoxide exposure on boats.

Install CO Detectors

Ensure carbon monoxide detectors are installed in key areas of the boat, especially in sleeping quarters. Ensure detectors are regularly tested and have fresh batteries.

Proper Ventilation
Maintain proper ventilation throughout the boat. Open windows, hatches, and doors to allow fresh air to circulate and help dissipate carbon monoxide. Avoid blocking ventilation sources.

Engine and Generator Maintenance
Schedule regular maintenance for boat engines and generators. Ensure exhaust systems are in good condition, and promptly address any signs of malfunction or leaks.

Avoid Stern Riding

Discourage passengers from riding on the boat's stern or swim platform while the engine is running. Exhaust fumes, including carbon monoxide, can accumulate in these areas.

Generator Safety
If using a generator, position it in an open area away from living spaces. Never use a generator in enclosed spaces, such as cabins or below-deck areas.

Symptom Awareness

Inform passengers about the symptoms of carbon monoxide poisoning, including headaches, dizziness, nausea, and confusion. Encourage reporting any signs immediately.

Mooring Safety

Turn off the engine and generator when the boat is moored or docked. Avoid sleeping in enclosed spaces while the engine or generator is running, even at low speeds.

Check Local Regulations

Be aware of and adhere to local regulations regarding carbon monoxide detectors on boats. Different regions may have specific requirements, and compliance ensures a safer boating experience.