A gas/propane water heater in a garage is elevated. This is to ensure the open flame (at the bottom) is above a certain height (?) to avoid any combustible fuels in the garage from igniting.
This all makes sense.
But does it apply to electric/heat pump hot water heaters? I assume not, as there is no flame to cause combustion, but I'm not sure where in the code to find out if this is true or not. Is it a plumbing code? Electrical?