What is the typical design pressure for residential natural gas systems?

The typical design pressure for residential natural gas systems is in the range of 11 to 13 inches of water column (W.C.). This range is commonly used because it provides sufficient pressure to deliver natural gas to appliances while ensuring safe operation.

Natural gas systems are designed to operate at a lower pressure than commercial or industrial systems, where higher pressures are required for larger appliances. The pressure in the 11 to 13 in. W.C. range allows for efficient combustion in residential appliances such as furnaces, water heaters, and stoves, without the risks associated with higher pressures.

Managing this pressure effectively is crucial for both safety and efficiency in residential gas installations. If the pressure were too low, appliances might not function properly; if too high, it could lead to unsafe conditions, including leaks or uncontrolled combustion. Therefore, the 11 to 13 in. W.C. range is a well-established standard in residential gas system design.