How high must an electric hot water heater be elevated in a private garage to ensure safety?

To ensure safety in a private garage, the North Carolina Mechanical Code specifies that electric hot water heaters must be elevated at least 18 inches above the ground. This requirement is primarily based on the potential presence of flammable vapors, commonly found in garage environments, especially when vehicles are parked that can emit fuel vapors. Elevating the heater minimizes the risk of ignition if these vapors accumulate near the floor.

The standard elevation of 18 inches is a precautionary measure designed to safeguard not just the equipment but also the occupants of the garage. By adhering to this guideline, you reduce the likelihood of creating a fire hazard due to hot surfaces igniting flammable materials. Thus, ensuring the hot water heater is positioned properly is an essential practice for maintaining safety in residential settings.