Description
The Lochinvar & A.O. Smith 100147003 is an OEM temperature gauge designed for use with Lochinvar and A.O. Smith boilers and hydronic heating systems. With a measurement range of 0–250°F, this gauge delivers accurate, at-a-glance temperature readings to help technicians and building operators maintain safe and efficient system operation.
Key Features
- Temperature range: 0–250°F
- OEM replacement part for Lochinvar and A.O. Smith equipment
- Designed for boiler and hydronic heating system applications
- Provides clear, reliable temperature monitoring
- Direct-fit replacement for simplified installation
Application
This temperature gauge is engineered as a direct OEM replacement for Lochinvar and A.O. Smith boilers and water heaters. Maintaining accurate temperature readings is essential for system efficiency, safety compliance, and equipment longevity. The 0–250°F range covers typical operating and high-limit temperatures found in residential and light commercial hydronic heating systems.
Why Choose OEM Parts?
- Ensures compatibility and proper fit with original equipment
- Maintains manufacturer performance standards
- Supports warranty compliance on applicable systems
- Reduces callbacks and repeat service visits







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