In a public garage, a heater must be installed at least how far above the floor?

In a public garage, heaters need to be installed at a minimum height of 8 feet above the floor primarily to ensure safety and compliance with fire and safety regulations. This height helps mitigate the risk of accidental contact with vehicles and their occupants, as well as reduces the risk of heat-related ignition of flammable materials commonly found in garages.

Installing the heater at this clearance allows for proper air circulation, which is essential for efficient operation and safety. Placing heaters too close to the ground could pose a hazard by creating an environment conducive to the buildup of flammable vapors, thus increasing fire risk. This safety code is particularly important in environments such as public garages, where there may be a higher concentration of automotive fluids that can be flammable.

Other options suggest different heights that do not align with the regulations typically enforced in such settings, emphasizing the importance of adhering to these standards to maintain a safe and compliant environment.