White Rodgers 11B18-101 Immersion Hot Water Control Open On Rise 100-240°F

The White Rodgers 11B18-101 is an immersion-type hot water temperature control designed for residential and commercial water heating applications. This control features an open-on-rise operation, meaning the circuit opens as the water temperature increases, making it ideal for high-limit safety applications or temperature control in boilers, water heaters, and storage tanks.

Key Features:

• Temperature range: 100-240°F adjustable setpoint for flexible application use
• Open-on-rise operation for high-limit safety control
• Immersion sensor design for accurate direct water temperature sensing
• Includes 1/2" standard shank well for easy installation into tank or vessel
• Durable construction for reliable long-term performance in hot water environments
• SPST switching mechanism for simple circuit control

This control is commonly used as a high-limit safety device in residential water heaters, commercial boilers, and hydronic heating systems. The immersion well design ensures accurate temperature sensing by placing the sensor element directly in contact with the water being controlled. The wide temperature range allows for versatility across various hot water applications.