Rheem Water Heater Parts SP11798B Water Heater Thermostat

Rheem Water Heater Thermostat SP11798B is a dependable replacement part for gas water heaters. This high-limit thermostat delivers precise temperature control with an adjustable range from 100 to 180°F and a ±7% tolerance, helping protect your system and ensure efficient operation.

Designed for compatibility with Rheem gas units, it features a 39-1/4 inch capillary tube and a 3/4 inch threaded insertion well, with a robust 255 PSI pressure rating.

Ideal for replacing worn or malfunctioning thermostats in residential water heaters, SP11798B is a straightforward upgrade that preserves safety and efficiency.

• Type: High Limit
• For: Gas Water Heater
• Thermostat Adjustment Range: 100–180°F
• Tolerance: ±7%
• Capillary Tube Length: 39-1/4 in
• Insertion Well Thread Size: 3/4 in
• Pressure Rating: 255 PSI

Its durable construction and precise sensing deliver reliable performance season after season, minimizing downtime and service calls. Rheem SP11798B is suitable for homeowners seeking a dependable thermostat replacement that maintains water temperature within safe limits.