What is the common pressure required from the meter to the furnace when using natural gas?

When using natural gas, the common pressure required from the meter to the furnace is typically around 7 inches of water column (WC). This pressure ensures that the furnace receives an adequate and consistent supply of gas, which is critical for efficient combustion and proper operation of the heating system.

Having the correct gas pressure is vital for the furnace to operate safely and effectively. If the pressure is too low, the furnace may not function properly, leading to insufficient heating and potential operational issues. Conversely, if the pressure is too high, it could result in unsafe conditions or damage to the equipment.

This standard of 7 inches WC aligns with industry practices for many residential heating systems that utilize natural gas, making it a common requirement in installations. It may be helpful to understand that variations can occur based on specific system designs or regional codes, but 7 inches WC serves as a reliable benchmark in most situations.