How to Buy Fire Extinguishers

By eHow Home & Garden Editor

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You never want to have to use them, but it's wise to own several fire extinguishers. Used correctly, they'll reduce flame and smoke damage and may save your home--or your life. But not all fires are alike and using the wrong type of extinguisher will actually make things worse.

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Instructions

Difficulty: Moderately Easy

Step1

Look for symbols or the letters A, B and C to determine which fire class(es) the extinguisher will put out. Class A extinguishers put out fires fueled by wood, paper, cloth, rubber and most plastics. Class B extinguishes flammable liquids, such as gasoline, oil and grease. Class C is for wiring, appliance and electrical fires.

Step2

Buy the most suitable extinguisher for each room. Keep one in the garage, and another near the furnace. In the kitchen, get a combination B-C extinguisher for grease and gas fires.

Step3

Check each extinguisher's number rating. The higher the number, the larger a fire the extinguisher can put out. (A 4-A unit will put out twice as much Class A fire as a 2-A one.) A high number usually means a big, heavy unit.

Step4

Select disposable or rechargeable models. Disposable units ($10 to $20) are typically made of plastic and lose pressure after about 12 years. Rechargeable extinguishers (up to $50) can be refilled after use and if they lose pressure. They should be serviced annually by the manufacturer.

What to Look For:

Relevant fire-class rating
High number rating
Manageable size and weight
Disposable or rechargeable

Tips & Warnings

Whatever class or size you choose, the extinguisher must be approved by Underwriters Laboratories (UL.com) or Factory Mutual (FMglobal.com).
Make sure you and other family members understand how to operate your home's fire extinguishers.