Why is it important to purge gas lines?

Purge gas lines is a critical procedure primarily to remove air from the system before starting a gas device. When gas lines contain air, there can be dangerous combustion issues, such as incomplete combustion or backfiring, when the appliance is ignited. This is because the proper fuel-to-air ratio must be established for efficient and safe combustion, and air in the gas lines can disrupt this balance.

By purging the lines, you ensure that only gas is present, creating a safer environment for operation. This procedure also helps in achieving better appliance performance and efficiency while minimizing emissions, which is vital for safety and functionality. Proper purging helps in preventing hazards that could arise from improper gas-air mixtures, ensuring that appliances operate correctly and safely from the moment they are ignited.