Boating can be fun but this be as it is, you can certainly find that it has some accidents that can be so frightening and one of them is a case of a fire breakout that cannot be controlled. Considering how fast an onboard fire can spread and increase in intensity, we see the fact that the difference there is between a simple fire breakout and a total catastrophe is having the right fire extinguisher for your boat.
Generally speaking, fire extinguishers come classified by Roman numerals and alphabets. The letters are an indication of the type of fires that the fire extinguisher is designed to deal with. And as for the numerals, these indicate the size of the extinguisher. The larger the numeral on the extinguisher, the larger the size of the extinguisher. And the size determines the portability of the fire extinguisher with sizes 1 and 2 being highly portable and sizes 3, 4 and 5 being semi-portable.
For those fires that leave ash behind them after they have burnt, consider the Class A fire extinguishers for them as they are the ones that have been designed to help fight such fires. Thus if you are looking for an extinguisher to help fight a fire resulting from such combustible substances such as wood, cloth, paper, plastics in the boat, the fiberglass reinforced parts and the like, then you will do well going for the class A labeled fire extinguishers. Going forward, it is worth noting as well the fact that the most suitable extinguishing agents for those Class A fires are water and chemical foam.
The Class B fires on the other hand are known to involve liquids and aqueous chemicals. They result from stove alcohol, petrol, acetone, acetone thinners, vanishes and oil to mention but a few. The most suitable extinguishing agents for these fires classified under class B are carbon dioxide and dry chemical or AFFF, aqueous film forming foam.
Talking of the classes of fires, there is as well the Class C fires and these are generally those fires that result from a charge from an energized electrical kit. For such fires, never try putting them off using a water based fire extinguishing agent as there is the risk of getting an electrical shock. It is rather advisable to fight them by first turning off the power or cutting the power supply off and then having done this, the fire will be reduced to a Class A or B fire which you can now fight using the Class or B fire extinguishers.