Journeyman Plumber ExamFixtures, Faucets, and Other AppliancesMedium
A plumber is installing a water heater in a garage. The manufacturer's instructions state that if the water heater is installed in a location susceptible to mechanical damage, it must be protected. Which of the following methods satisfies this requirement?
- AEnclosing the water heater within a protective barrier or bollards.
- BInstalling a drip pan underneath the water heater.
- CEnsuring a minimum 18-inch clearance from the garage door.
- DElevating the water heater on a 6-inch platform.
Show answer & explanationAnswer & explanation
Correct answer: A. Enclosing the water heater within a protective barrier or bollards.
Protecting a water heater from mechanical damage, especially in a garage where vehicles or equipment might strike it, typically involves physical barriers like bollards or a protective enclosure. A drip pan addresses leaks, elevating it addresses ignition sources, and door clearance is for access/ventilation.
Why the other options are wrong
- B. A drip pan is for containing leaks, not for protection against mechanical impact.
- C. Minimum clearance from a garage door relates to access, ventilation, or gas appliance ignition requirements, not protection from mechanical damage.
- D. Elevating the water heater is primarily to protect against flammable vapor ignition, not mechanical damage.
Water Heater Mechanical Protection
Measures taken to shield a water heater from physical impact or damage, particularly in vulnerable locations like garages or warehouses.
- Required in locations susceptible to vehicular or equipment damage.
- Common methods include bollards, protective enclosures, or guard rails.
- Prevents leaks, gas line ruptures, and electrical hazards.
Memory trick: Keep your water heater safe and sound, from impacts and leaks all around.