TOPVOP auto LP Thermopile Sensor for Pilot Burner — 750mV Replacement for Rheem/Ruud/Richmond Water Heaters

Overview

Engineered as a direct replacement for common water heater thermopiles, the TOPVOP auto LP Thermopile Sensor Component aims to restore ignition reliability across Rheem, Ruud, and Richmond units. It combines a robust ceramic core with precise manufacturing to deliver a steady micro voltage even as heat cycles intensify. While performance can vary by model and gas type, many homeowners notice smoother startup sequences and fewer nuisance ignitions after replacement.

Compatibility and fit

This thermopile is designed to replace multiple interface designs and part numbers. Key compatibility notes include part numbers SP20824, SP20754, SP21058, SP20800, SP21096, and SP20739. To ensure a perfect match, please verify your original part number before ordering and check the interface and specifications in your unit manual.

• Replacement part numbers SP20824 SP20754 SP21058 SP20800 SP21096 SP20739
• Compatible with Rheem, Ruud, and Richmond water heater pilot burners using natural or LPG gas
• Supports both natural gas and LPG configurations
• Verify interface and specification for a precise fit
• New, ignition-tested component; not a second-hand part

Performance and durability

• High temperature ceramic core withstands 2150°F+, offering enhanced heat resistance
• Guaranteed 750mV+ output after testing, supporting reliable ignition under typical heat cycles
• Optimized flame contact area helps maintain consistent thermopile performance
• Precise nozzle design minimizes voltage drops from carbon buildup and clogs
• Ignition-testing confirms fresh performance for each unit

For installation and safety, follow standard gas and appliance servicing practices. If the valve does not open, consider cleaning the pilot orifice rather than replacing the thermopile.

Warranty and what to expect

The TOPVOP auto water heater thermopile is backed by a one-year replacement warranty with strict quality checks and an easy return or exchange policy for peace of mind. This part serves as the sensor heart of your heater and is designed for straightforward replacement in compatible units.