GAS PIPE MUST BE BONDED

When installing or inspecting gas piping systems, one common question often arises: "Does the gas bond at the water heater comply with safety standards?" Proper bonding is essential not only to meet NEC 250.104(B) but to protect individuals from hazards associated with stray electrical currents. From my experience working on residential installations, bonding the metal gas piping creates a direct electrical path that helps prevent potential differences between metal parts. This is particularly important where gas piping connects to appliances like water heaters, which may be grounded separately. Without a proper bond, metal gas pipes could become energized, increasing shock risk during maintenance or accidental contact. I’ve also noticed that many DIY installations overlook verifying bonding continuity. Using a multimeter to check the resistance between the gas pipe and grounding system can confirm the bond’s effectiveness. Inspectors should look for proper bonding jumpers and secure connections at all times. In addition, when upgrading or replacing water heaters, ensuring the gas pipe bond is maintained or re-established is necessary. Sometimes older installations may have outdated or corroded bonds that no longer provide reliable grounding. Ultimately, understanding and implementing gas pipe bonding safeguards both the electrical and gas systems, reducing fire risks and electrical shock hazards. Taking the time to inspect and confirm bonding during every phase of installation or inspection ensures compliance and maximizes safety.