Gas Control Assembly Thermostat for Water Heater

Rheem SP20231 Natural Gas Control Thermostat for Residential Water Heaters

The Rheem SP20231 is a natural gas thermostat and control valve assembly designed for use in select residential gas-fired water heaters. It regulates burner operation by managing gas flow and water temperature, ensuring consistent performance and safe system function.

This factory-specified component is suitable for direct replacement in compatible Rheem models, supporting proper ignition sequencing and reliable temperature control. The unit is built with integrated safety features and precision controls, making it appropriate for both routine maintenance and service replacements.

Key Product Attributes

• Fuel Type: Natural Gas
• Control Type: Gas valve with integrated thermostat
• Inlet Size: 1/2" NPT
• Application: Residential tank-type gas water heaters
• Mounting: Standard fit for OEM replacement on designated Rheem models

Performance and Safety Features

• Integrated Temperature Regulation – Provides consistent control of water temperature to manufacturer specifications.
• System Protection – Includes built-in shutoff safety to help prevent unsafe burner operation.
• Service Diagnostics – May include diagnostic functions or LED indicators depending on system integration.
• Corrosion-Resistant Housing – Durable construction designed to operate reliably in standard water heater environments.

Installation Notes

Installation of the SP20231 gas control should only be performed by licensed professionals familiar with gas-fired water heater systems. Proper torque, sealing, leak testing, and burner calibration are essential for safety and function. Follow all Rheem guidelines and local plumbing/mechanical codes during installation.

Contractor Application

This thermostat is specified for use in Rheem residential tank models requiring natural gas control assemblies with 1/2" inlet connections. Designed for reliability and field compatibility, it simplifies service procedures by aligning with OEM component standards. Always confirm model compatibility prior to installation.