---
product_id: 728899926
title: "Harman Heatilator Red ESP Thermistor Probe 3-20-00844"
brand: "pellethead"
price: "$82.60"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/728899926-harman-heatilator-red-esp-thermistor-probe-3-20-00844
store_origin: US
region: United States of America
---

# Precision temp sensing Red wire for exact fit Plug & play compatibility Harman Heatilator Red ESP Thermistor Probe 3-20-00844

**Brand:** pellethead
**Price:** $82.60
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade your stove’s brain with precision sensing! 🔴

## Quick Answers

- **What is this?** Harman Heatilator Red ESP Thermistor Probe 3-20-00844 by pellethead
- **How much does it cost?** $82.60 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/728899926-harman-heatilator-red-esp-thermistor-probe-3-20-00844)

## Best For

- pellethead enthusiasts

## Why This Product

- Trusted pellethead brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Reliable Warranty:** Backed by a one-year warranty for peace of mind and durability.
- • **Lightweight & Compact:** At just 18g and small dimensions, it integrates effortlessly without bulk.
- • **Tailored Compatibility:** Fits a wide range of Harman pellet and coal stove models for seamless replacement.
- • **Color-Coded Installation:** Red wire design guarantees you get the exact thermistor probe needed—no guesswork.
- • **Precision Temperature Control:** Ensures optimal stove performance with accurate exhaust monitoring.

## Overview

The Harman Heatilator Red ESP Thermistor Probe 3-20-00844 is a lightweight, precision exhaust temperature sensor designed specifically for a broad range of Harman pellet and coal stoves. Featuring a red wire for exact replacement compatibility, it ensures optimal stove efficiency and safety. Easy to install and backed by a one-year warranty, this probe is essential for maintaining peak stove performance.

## Description



## Features

- Fits Harman Pellet Stoves: ~ Absolute 43 ~ Absolute 63 ~ Allure 50 ~ Accentra Cast FS (Serial # 00840167 and higher) ~ Accentra Insert (Serial # 008241201 and higher) ~ Accentra 52i (All Models) ~ Accentra 52i-TC ~ Advance (Serial # 008360001 and higher) ~ P35I (All Models) ~ P43 (All Models) ~ P61 (Serial # 008085055 and higher) ~ P61A (Serial # 008085803 and higher) ~ P68 (Serial # 008280309 and higher) ~ PC45 (Serial # 008055031 and higher) ~ PF100 (Red Wires)
- PB105 (All Models) ~ HydroFlex 60 (All Models) ~ XXV (Serial # 008206292 and higher) ~ XXV-TC Fits Harman Coal Stoves: ~ DVC 500 (Serial # 008065076 and higher) Heatilator Eco-Choice Pellet Stoves: ~ BH60 (All Models) ~ BA100 (Red Wires) ~ BH105 (All Models)
- Exhaust thermistor probe, ESP, Red Wire. There are 2 different thermistor ESP probes for the Harman line; one has a black wire, one has a red wire. You must order the same color thermistor probe as the one you are replacing.
- One Year Warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Pellethead |
| Package Dimensions | 8.13 x 5.08 x 1.02 cm; 18 g |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 18 g |

## Images

![Harman Heatilator Red ESP Thermistor Probe 3-20-00844 - Image 1](https://m.media-amazon.com/images/I/51yE62jUpFL.jpg)
![Harman Heatilator Red ESP Thermistor Probe 3-20-00844 - Image 2](https://m.media-amazon.com/images/I/71f4yAuX7iL.jpg)
![Harman Heatilator Red ESP Thermistor Probe 3-20-00844 - Image 3](https://m.media-amazon.com/images/I/71Hk9NRFTKL.jpg)
![Harman Heatilator Red ESP Thermistor Probe 3-20-00844 - Image 4](https://m.media-amazon.com/images/I/71c8bYPvgZL.jpg)
![Harman Heatilator Red ESP Thermistor Probe 3-20-00844 - Image 5](https://m.media-amazon.com/images/I/71og0+DkBJL.jpg)

## Frequently Bought Together

- Harman Heatilator Red ESP Thermistor Probe for Models After 2008 Absolute 43 63 Accentra 52i Accentra Cast Allure DVC500 HF60 Invincible P35i P38 P43 P61 P61A P68 PC45 PB105 PF100 PF120 XXV 3-20-00844
- Harman Room Sensing Thermostat Probe. 3-20-00906
- Harman Heatilator Black ESP Thermistor Probe, Fits Harman Pellet Stoves, Fits Harman Coal Stoves, One Year Warranty, Replacement Part # 3-20-00744

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-22*