In a residential garage, appliances installed in an enclosed space must have access from where?

Access to appliances installed in an enclosed space, such as a residential garage, must be provided from outside the garage. This requirement is primarily based on safety considerations. When appliances such as water heaters, furnaces, or gas appliances are located in a garage, accessing them requires ensuring that the maintenance and repair work does not expose occupants to any hazards or combustible materials that may be present in the garage environment.

By providing access from outside the garage, it minimizes the risk of an accidental ignition or a safety incident occurring within the enclosed space. Additionally, this setup limits exposure to potentially harmful gases or fumes that could accumulate within the garage. In terms of code compliance and best practices, having access from outside also ensures that these appliances can be serviced or inspected without disrupting the functionality of the garage as a working space or storage area.