What is the working pressure for most LP gas applications?

For most LP gas applications, the working pressure is typically between 5 and 10 inches of water column. This range is standard for many residential and commercial appliances that utilize LP gas, such as furnaces, water heaters, and cooking appliances. The pressure within this range ensures proper operation of these appliances, allowing them to function efficiently and safely without risking equipment damage or improper fuel combustion.

In contrast to the other options, the specified pressure range reflects a balance between adequate gas flow and safety. Pressures above 20 inches of water column may indicate a high-pressure system that is not suitable for general LP gas applications, while pressures below 5 inches may not provide sufficient gas flow for efficient operation. Additionally, a constant pressure of 10 inches of water column is not applicable to all situations, as actual operating pressures may vary within the typical range depending on the specific appliance and its requirements.