Lochinvar & A.O. Smith 100108954 Heating Element

The Lochinvar & A.O. Smith 100108954 Heating Element is a heavy-duty, 120V 2500W copper heating component engineered for high-performance thermal transfer in residential and light commercial water heaters. This 8.125-inch screw-in heating element features a robust copper (CU) construction with Corrogard zinc-plating to resist corrosive mineral buildup and extend service life in varied water conditions. Designed as a genuine OEM water heater replacement part, it ensures precise fitment and thermal consistency for Lochinvar and A.O. Smith units, specifically models like the JR(A)006, JR(A)010, and JR(A)020. With a low-watt density design, this 2500W electric heating element minimizes localized overheating and scaling, maintaining high-efficiency water heater repair standards. Technicians should verify the 100108954 part number against the unit’s serial plate to ensure it meets the 20.83-amp draw requirements before installation.

• Enhanced Corrosion Resistance: The zinc-plated copper sheath prevents pitting and oxidation, even in hard water environments.
• Optimal Heat Transfer: High-purity copper ensures rapid recovery times and consistent temperature regulation within the tank.
• Durable Screw-In Design: Standard 8-1/8" length and screw-in base allow for a secure, leak-free installation using a standard element socket.
• Low Watt Density: Spreading 2500W over the surface area reduces the risk of element burnout and sediment accumulation.
• OEM Compatibility: Specifically calibrated for Lochinvar and A.O. Smith systems to maintain original factory performance specifications.

Is the gasket included with the 100108954 element?
Yes, this heating element kit typically includes the necessary rubber gasket to ensure a watertight seal upon installation.

What causes a heating element to fail?
Failure is often caused by sediment buildup or "dry firing" (applying power before the tank is completely full of water), which leads to rapid overheating and sheath rupture.

How do I test if this element is bad?
Using a multimeter, a technician should check for continuity between the terminals. If the circuit is open, or if there is continuity between a terminal and the element sheath, the part must be replaced.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.