Where must a regulator be installed inside a building?

Installing a regulator as close as possible to the point of service line entering the building is critical for several reasons. First, this location allows for optimal performance in regulating the pressure of the gas as it enters the building, ensuring that the appliances receive a consistent and appropriate gas supply. This helps to prevent issues related to fluctuating gas pressure, which could affect appliance efficiency and safety.

Additionally, locating the regulator near the service line simplifies the installation and minimizes the length of piping required, which can reduce the risk of leaks and other potential issues. It also allows for easier access for maintenance and inspection, ensuring that any necessary adjustments or repairs can be made quickly and safely.

Other options, such as placing the regulator away from the building entryway or near the main electrical panel, do not prioritize the efficiency and safety of the gas delivery system. These locations may complicate installation and create potential hazards, while placing it in the basement may not provide the necessary accessibility or performance benefits.