812-4470 14" Pellet Stove Burnpot Thermocouple | Fits Quadra-Fire Castile Santa Fe & Heatilator Eco-Choice pellet stoves

If your pellet stove fails to complete the startup sequence, shuts down unexpectedly mid-cycle, or cannot maintain normal operation after ignition, a worn or faulty thermocouple is one of the most common causes. As a critical flame-sensing safety part, it plays a key role in confirming successful ignition and keeping the stove running safely. This 14-inch pellet stove thermocouple is engineered as a direct replacement for Heatilator and QuadraFire pellet stove models part number 812-4470 for seamless compatibility. Mounted above the burn pot, it detects flame presence during the ignition process and signals the control board to allow the stove to enter full normal operating mode, supporting safe, consistent heating performance. Built to match equipment dimensions and electrical specifications, the 14-inch thermocouple fits securely into the factory mounting position with no drilling or modification required. Its durable construction is designed to withstand repeated heating and cooling cycles inside the stove firebox, delivering reliable long-term flame-sensing performance. Installation is straightforward for most users with basic hand tools. Always disconnect the stove from its power supply before beginning any repair work, and allow the burn pot and all internal components to cool completely to avoid burn injuries. Wear protective work gloves for added safety during disassembly and installation. Every thermocouple undergoes strict functional testing and dimensional quality checks before shipping, so you receive a ready-to-install replacement part that delivers reliable, consistent performance for your pellet stove maintenance needs.

• This replacement pellet stove thermocouple part number 812-4470, fits the following pellet stove models:Heatilator: CAB50, PS35, PS50;QuadraFire: Castile Freestanding, Castile Insert, Contour, Mt Vernon OE, Santa Fe, Santa Fe Insert(Please verify your equipment part number and stove model before purchase to ensure proper fitment.)
• Mounted above the burn pot, this thermocouple serves as a core safety device for pellet stove operation. It detects the presence of flame during the startup ignition sequence. Once successful ignition is confirmed, it sends a signal to the control board to allow the stove to transition into normal operating mode. A faulty thermocouple commonly causes startup failure and unexpected shutdowns during operation
• This thermocouple measures 14 inches in length, engineered to match equipment dimensions and connection specifications. It aligns perfectly with the factory mounting position above the burn pot for a secure, stable fit with no modifications or custom hardware required
• Most homeowners can complete the replacement with basic hand tools. (For your safety, always disconnect the stove from its power source and allow the burn pot and all internal components to cool fully before performing any repair work. Wear protective work gloves to avoid burns from residual heat and sharp metal edges.)
• A failed thermocouple disrupts normal stove operation and can lead to unnecessary professional service fees. Replacing the faulty component is a low-cost, simple fix that restores reliable ignition and steady stove performance. Every thermocouple undergoes strict functional testing and dimensional inspection before shipping