Description
The Utica-Dunkirk 550002858 is a single-pole, single-throw (SPST) immersion aquastat engineered for reliable boiler water temperature sensing and control. With a broad operating range of 110–200°F, this OEM-quality control is designed to maintain precise hydronic system temperatures, protecting boiler equipment and optimizing heating efficiency.
Key Features
- Wide temperature sensing range: 110–200°F
- SPST (Single-Pole, Single-Throw) switching configuration
- Immersion-style aquastat for direct water temperature measurement
- OEM replacement part for Utica-Dunkirk boiler systems
- Designed for hydronic heating applications
- Helps protect boiler from overheating and ensures consistent comfort
Application
This immersion aquastat is ideal for use in residential and light commercial hydronic boiler systems. It mounts directly into the boiler’s immersion well to monitor water temperature and switch the heating circuit on or off as needed, maintaining safe and efficient operation.
Specifications
- SKU: 550002858
- Brand: Utica-Dunkirk
- Switch Type: SPST
- Temperature Range: 110–200°F
- Control Type: Immersion Aquastat







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