Many people use portable fire extinguishers as "door stops" on fire doors.
This practice is unwise, unsafe and almost certainly a code violation.
For example, NFPA 1 requires all usable fire extinguishers to be mounted with the bottom no less than 4 inches from the floor, if it is not on wheels.
FIRE extinguishers are used to put out fire.
Extinguishers with a Class C rating (C can be used on Currents)
Fire extinguishers!!
Some fire extinguishers use dry chemicals and some use a foam to extinguish flames. Some fire extinguishers actually still use water, but they're only for use on smaller fires. Others use a dry chemical, mostly sodium bicarbonate, or Carbon Dioxide.
Yes, a carbon-dioxide type of fire extinguisher contains ONLY carbon dioxide. Other extinguishers might use compressed nitrogen or other inert gases as propellants, as well as compressed carbon dioxide.
At the base of the fire and use a sweeping motion
It is the Class C fires that invlove electrically energized equipments, and they are suppressed using CO2 extinguishers or dry chemical extinguishers. Certainly the use of water or water-based extinguishers or other water-based suppression equipment is not to be considered.
There are different types of fire extinguishers. For a boat it would be best to get a portable type like those designed for use in automobiles.
Use extinguishers with a class B rating. They are intended for use on burning liquids.
It is very important to know the proper way to use a fire extinguisher. If you would like to learn the ABC's of fire extinguishers, you should go here: http://www.fireextinguisher.com/ This interactive and thorough website will teach you all about fire extinguishers and what types of extinguishers you should use on certain types of fires. The site is very in depth.
USFA fire extinguishers is a good brand. Remove the safety pin if there is one and break the safety seal. After that exert pressure by squeezing the handle.
In the USA, marine fire extinguishers must be UL listed and US Coast Guard approved. Don't know about other countries. There are private testing agencies to which a fire extinguisher applies for the necessary testing and certifications, according to the UL and USCG standards.