Lochinvar & A.O. Smith 100109765 Heating Element

For high-demand service calls involving residential and light commercial water heaters, the Lochinvar & A.O. Smith 100109765 heating element is the professional choice for field-proven durability. This 240V 5500W Sandhog heating element features a heavy-duty Incoloy nickel-alloy sheathing, specifically engineered as a low watt density element to mitigate the effects of sediment buildup and lime scale in hard water environments. As a genuine OEM water heater replacement part, it ensures direct compatibility with select A.O. Smith, Lochinvar, American, and State units, maintaining the original equipment’s performance standards. The 13.1-inch Incoloy screw-in element is designed to operate at lower surface temperatures, significantly extending the service life compared to standard high-density alternatives. When you are performing a water heater element replacement, this rugged component provides the thermal efficiency and corrosion resistance required for long-term system reliability in both standard and high-recovery tanks.

• Incoloy Nickel-Alloy Sheathing: Superior resistance to corrosion and "dry-fire" damage compared to copper elements.
• Sandhog Technology: Low watt density design reduces mineral accumulation, thermal stress, and premature failure.
• OEM Precision: Guaranteed fit for Lochinvar and A.O. Smith models without requiring modifications to the mounting flange.
• Consistent Heat Transfer: Optimized 5500W output ensures efficient recovery times for residential and light commercial applications.
• Included Gasket: Each unit comes with the necessary sealing gasket to ensure a leak-proof installation.

Is the 100109765 compatible with universal screw-in flanges?
While it uses a standard screw-in mounting, this part is specifically calibrated for A.O. Smith and Lochinvar specifications. Always verify the model number as replacement requirements vary by tank capacity and voltage.

Can I use this 5500W element in a tank originally rated for 4500W?
No. You must match the original wattage and voltage to prevent overloading the circuit breaker or damaging the internal wiring and thermostat.

Does this element work in hard water areas?
Yes, the "Sandhog" Incoloy construction is specifically designed to handle hard water and sediment better than standard high-density elements.

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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.