You can safely leave a gas water heater running on its pilot light indefinitely, often for many years, provided the thermocouple, gas supply, and venting systems remain fully functional and uncompromised. The pilot light consumes a very small, steady amount of gas to keep the safety thermocouple heated so the main gas valve stays open. However, if you leave your home vacant for an extended period, turning the gas valve to the "PILOT" or "OFF" position saves energy. Verification: Inspect the pilot flame periodically to ensure it burns a steady blue color.
1 votes
Marked as accepted