Description
Rheem-Ruud SP21223 Flame Rod Triton HD/SD Kit Overview
The Rheem-Ruud SP21223 is an OEM replacement Flame Rod Kit designed specifically for use with Rheem’s Triton HD and SD commercial water heater series. The flame rod is a critical safety and performance component in the burner control system, providing reliable flame sensing to confirm ignition and maintain safe, continuous burner operation. Replacing a worn or failed flame rod with a genuine Rheem-Ruud kit ensures your Triton water heater continues to operate at peak efficiency and meets original equipment safety standards.
Key Features
- OEM replacement flame rod kit engineered for Rheem Triton HD and SD series commercial water heaters
- Provides accurate flame detection to support safe burner operation and prevent nuisance lockouts
- Direct drop-in replacement — no modifications required for compatible Triton HD/SD models
- Helps restore proper ignition control system function quickly and reliably
- Genuine Rheem-Ruud quality construction for long-lasting performance
- Kit format includes all necessary components for a complete flame rod replacement
Application
- Compatible with Rheem Triton HD (Heavy Duty) commercial water heaters
- Compatible with Rheem Triton SD commercial water heaters
- Ideal for commercial plumbing, mechanical, and HVAC service technicians
Why Replace Your Flame Rod?
Over time, flame rods can become coated with oxidation or carbon buildup, reducing their ability to accurately sense the burner flame. A degraded flame rod can cause repeated ignition failures, nuisance lockouts, or unsafe burner conditions. Replacing the flame rod with a genuine Rheem-Ruud SP21223 kit restores reliable flame sensing and protects the investment in your commercial water heating equipment.
Product Details
- Brand: Rheem-Ruud
- Part Number / SKU: SP21223
- Product Type: Flame Rod Kit
- Compatible Series: Triton HD / Triton SD







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