Product description

The Exhaust Sensing Probe (ESP), identifiable by its red wire or connector, is a sophisticated thermal sensor that acts as the 'brain' for the control system of your Harman pellet stove. This probe is inserted into the exhaust path where it constantly monitors the temperature of the exiting gases. The data it collects is sent back to the stove’s control board, which then makes real-time adjustments to the fuel feed rate and combustion blower speed. This closed-loop system allows the stove to maintain a precise temperature, maximize fuel efficiency, and ensure safe operation by detecting abnormal heat levels. The red ESP probe is typically used in specific generations of Harman stoves and is engineered for high accuracy and rapid response times. Because it is exposed to ash and hot gases, the probe can eventually fail due to buildup or internal degradation. Replacing a faulty ESP probe is essential for restoring proper temperature control and preventing the stove from going into error modes or shutting down unexpectedly.

Product highlights

• Advanced Thermal Monitoring: Provides real-time exhaust temperature data for precise stove performance adjustments.
• System Coordination: Enables the control board to balance fuel feed and airflow for maximum heating efficiency.
• Safety Protection: Acts as a critical sensor for detecting over-temperature conditions and ensuring safe operation.
• High-Precision Sensing: Engineered for accurate temperature readings to maintain a consistent room environment.
• Color-Coded Integration: Features a red identifier for easy matching with compatible Harman control systems.

Specs

• Manufacturer: Harman
• Manufacturer Part Number: 3-20-00844
• Type: ESP Probe (Red)

Direct replacement models

Replacement for Harman pellet stoves requiring the red-wire ESP probe assembly (3-20-00844).

You will receive the same product or an OEM-Equivalent that meets the highest standard of the OEM with warranty that will be a direct-fit. Manufactured with rigorous industry standards and certified in the USA with superior quality to the OEM.