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.
Yes, fire extinguishers can be refilled by trained professionals to ensure they are ready for use in case of a fire emergency.
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.
Fire extinguishers should be recharged annually to ensure they are ready for use in case of an emergency.
At the base of the fire and use a sweeping motion
No, fire extinguishers are typically designed for multiple uses as long as they are properly maintained and have not expired.
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.