Which Fire Extinguisher is Right for You

10/12/2016 (Permalink)

The Five Classes

Reading the Label

In the United States there are five classes of fire extinguishers.  They are A, B, C, D, and K.  A means that the fire extinguisher is effective against wood, paper, and trash fires.  B is good for combustible liquids and gasses such as gasoline or propane.  C is good for use against electrical fires because it will not conduct electricity.  D is for fires started by combustible metals.  These fire extinguishers are usually more for commercial use.  Lastly, K is for grease fires.  It effectively turns the fat in the grease into soap to stop the fire.  Fire extinguishers come in all sorts of different combinations of these classifications.  Typically for a homeowner, it is a good idea to get at least one that is ABC and a K for the kitchen.  In front of A and B there will be a number.  The higher the number, the more effective it is for that type of fire.   

Here is a list of what each classification stands for, its designated color, and its geometric symbol.

A – Ash – Green – Triangle

B – Barrel – Red – Square

C – Current – Blue – Circle   

D – Dynamite – Yellow – Star

K – Kitchen – Black – Hexagon

Disposable or Rechargeable

Fire extinguishers come in both types.  It is important to note that a refill on a rechargeable fire extinguisher is usually cheaper than buying a new disposable one.  The rechargeable fire extinguishers also usually have metal parts in comparison to the disposable which usually has plastic parts.  Generally speaking, the rechargeable ones have better quality parts, longer lasting charge, and the ability to refill it.  The initial cost is higher for a rechargeable one, but usually worth it in the end.

Size

This completely depends on your situation.  Bigger normally equals more chemicals, but also means heavier and less maneuverability.  The weight listed, just accounts for the chemical contents.  This is NOT the total weight, meaning it does not factor in the weight of the canister.  Pick what works best for your situation.  Consider the strength of anyone that might be using the fire extinguisher.  Also take into account the dimensions of the tight spaces the fire extinguisher might be needed in for maneuverability purposes. 

For information on what to do after a fire refer to our SERVPRO website