Lochinvar & A.O. Smith 100110038 Gas Valve

The Lochinvar & A.O. Smith 100110038 Gas Valve is a genuine OEM replacement engineered for high-recovery commercial water heaters and boilers utilizing liquid propane (LP). This 10" WC LP gas control valve serves as the direct updated technical supersession for legacy part numbers 180192-002 and 37C72U-520. Designed for precise fuel-to-air ratios, the 100110038 ensures stable manifold pressure and reliable ignition cycles in high-demand hydronic systems.

As a veteran-grade HVACR replacement part, this valve features a factory-calibrated 10" water column setting, critical for maintaining LP gas water heater efficiency and safety. The integrated thermostat and gas control assembly provide accurate temperature regulation and millivolt-controlled safety shut-off. This component is compatible with various Lochinvar and A.O. Smith units, including many BTH and GVC series models, offering a seamless fit and electrical interface for field repairs and preventative maintenance protocols.

• Factory Supersession: Direct mechanical replacement for 37C72U-520 and 180192-002, ensuring full compatibility without field modifications.
• Specific Gravity Calibration: Hard-coded for liquid propane (LP) systems with a fixed 10" WC pressure regulator.
• OEM Integrity: Genuine factory-sealed component prevents the premature failure often associated with aftermarket gas control valves.
• Robust Construction: Built to withstand the high-temperature environments of commercial boiler rooms and mechanical spaces.

Is the 100110038 compatible with natural gas systems?
No, this specific part number is calibrated for 10" WC LP gas only. Installing this on a natural gas system will cause dangerous over-firing and equipment damage.

What does it mean if my current valve is a White-Rodgers 37C72U-520?
The A.O. Smith 100110038 is the official service replacement for that specific White-Rodgers model. It maintains the same mounting footprint and technical specifications.

Does this gas valve include the internal thermostat/stat?
Yes, this is a complete gas valve stat assembly designed for direct integration into the tank or heat exchanger manifold.

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.