It depends on the ANSI/UL ratings and their age? In 1978, UL required a hose and nozzle assembly on all new extinguishers with a rating equal to or greater than 2A or 20B.

Who decided on and sanctioned this change? UL and FEMA. They did cooperative fire tests using only novice fire fighters. The tests involved a variety of UL test fires, a variety of extinguisher types and a variety of operating instructions. Witnesses to the tests were not allowed to assist any novice in fighting the fire. There were no instructions or warnings given.

There were two results from these tests. First, it proved that the use of a hose and horn made the novice fire fighter more successful. How? Proper application was easier because it was simpler to operate the extinguisher with one hand while the other hand directed agent from the hose onto the fire. Having an extinguisher with a hose made it impossible for the operator to turn the extinguisher sideways or upside down which would blow pressurizing agent on the fire rather than extinguishing agent.

The other change involved the use of easier-to-understand pictures indicating pull, aim, squeeze and sweep. Along with the types of fire against which the agent is successful.

All of the changes made by UL were part of an effort to make the extinguisher safer and more user friendly. If this was proven twenty years ago and required on all new units, then isn’t it about time to think about getting rid of 5 lb., 6 lb., 10 lb. and in some cases – 20 lb. dry chemical extinguishers that still have fixed nozzles?

These units have no manufacturer’s warranty because they either no longer have a manufacturer or they are too old. Also, you can’t merely find a hose and horn that will fit and replace the fixed nozzle because there are differences in velocity of discharge between the two. It is time to upgrade your customer to safety levels of the 21st Century!