For natural gas applications, what is the ideal line pressure?

In natural gas applications, the ideal line pressure specified as 7.0 inches of water gauge (in. w.g.) is considered optimal for most residential and light commercial systems. This pressure is sufficient to ensure that gas appliances operate efficiently, providing reliable performance while maintaining safety.

Utilizing a line pressure of 7.0 in. w.g. typically allows for adequate gas flow without causing excessive pressure that could lead to safety concerns or inefficient appliance operation. It balances the need for enough pressure to deliver gas effectively to appliances while minimizing the risk of issues such as combustion problems or gas leaks.

Higher pressures, such as 11.0 in. w.g., may be more suitable for certain industrial applications but are typically not necessary for standard residential use, where 7.0 in. w.g. is adequate. Similarly, lower pressures like 5.0 in. w.g. or 3.0 in. w.g. may not provide the necessary levels of performance and efficiency expected from gas appliances. Thus, having 7.0 in. w.g. as the ideal pressure ensures optimal function within the standard requirements for natural gas systems in homes and small businesses.