Description
The Lochinvar & A.O. Smith 100287143 is an OEM natural gas venturi assembly engineered for precise air-fuel mixture delivery in compatible Lochinvar and A.O. Smith heating equipment. As a critical combustion component, the venturi creates the pressure differential needed to draw and blend natural gas with combustion air, ensuring stable, efficient burner operation and consistent heat output.
Key Features
- OEM replacement venturi designed for Lochinvar and A.O. Smith equipment
- Engineered for natural gas (NAT GAS) applications
- Promotes accurate air-fuel ratio for efficient, stable combustion
- Direct-fit replacement for simplified installation and reduced downtime
- Manufactured to original equipment specifications for reliable, long-term performance
Application
This venturi assembly is intended for use in Lochinvar and A.O. Smith water heaters and boilers that require a natural gas venturi replacement. Always verify compatibility with your specific model and serial number before installation.
Why Choose OEM Parts?
Using genuine OEM replacement parts like the 100287143 ensures your equipment operates within designed parameters, preserving efficiency ratings, warranty coverage, and system safety. Aftermarket substitutes may not meet the precise tolerances required for optimal combustion performance.







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