---
product_id: 12921873
title: "HeatTrak HR-Therm3550 Thermostat Extension Cable for Snow Melting Mats, 10-Inch"
brand: "brand: heattrak"
price: "€ 8.15"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.hr/products/12921873-heattrak-hr-therm3550-thermostat-extension-cable-for-snow-melting-mats
store_origin: HR
region: Croatia
---

# LED status indicator Compatible with 120V systems Auto-activation below 35°F HeatTrak HR-Therm3550 Thermostat Extension Cable for Snow Melting Mats, 10-Inch

**Brand:** brand: heattrak
**Price:** € 8.15
**Availability:** ❌ Out of Stock

## Summary

> ❄️ Embrace Winter, Not the Slips!

## Quick Answers

- **What is this?** HeatTrak HR-Therm3550 Thermostat Extension Cable for Snow Melting Mats, 10-Inch by brand: heattrak
- **How much does it cost?** € 8.15 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/12921873-heattrak-hr-therm3550-thermostat-extension-cable-for-snow-melting-mats)

## Best For

- brand: heattrak enthusiasts

## Why This Product

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

## Key Features

- • **Smart Activation:** LED indicator lights up to show when the system is working, keeping you informed.
- • **Easy Installation:** 10-inch extension cable makes setup a breeze, so you can enjoy a worry-free winter.
- • **Reliable Performance:** Remains active until temperatures rise above 50°F, providing consistent snow melting.
- • **Stay Ahead of Winter:** Automatically activates when temperatures drop below 35°F, ensuring your walkways are always safe.
- • **Versatile Compatibility:** Designed for both residential and industrial use, perfect for walkways and stair mats.

## Overview

The HeatTrak HR-Therm3550 Thermostat Extension Cable is designed to automatically activate snow melting mats when temperatures drop below 35°F, ensuring safe walkways and stairs. With an LED indicator for easy monitoring and compatibility with both residential and industrial mats, this extension cable is a must-have for winter safety.

## Description

Product Description








The Thermostat Extension Cable will automatically turn on your HeatTrak Snow-Melting Mats when the temperature drops below 35 degrees (F). The Thermostat is simple to use. Plug one end directly into any 120V outlet and the other end into your mat&#x2019;s Power Unit. The Thermostat Extension Cable has an LED indicator that illuminates when the thermostat is activated. The Thermostat will remain activated until the ambient temperature rises above 50 degrees (F).












.com








 For use with select HeatTrak 120-volt, snow-melting stair and walkway mats, this thermostat extension cable will automatically turn on your mats when the temperature drops below 35 degrees F. Easy to use, just plug one end directly into any 120-volt outlet and the other end into your mat&apos;s power unit. The extension cable has an LED indicator that illuminates when the thermostat is activated, and it will remain activated until the ambient temperature rises above 50 degrees F. This thermostat extension cable can be used with residential walkway mats (HR20-60), residential stair mats (HR10-30), carpeted snow-melting door mat (HCM24-3), and 120-volt industrial stair mats (HRT Series). It is not compatible with 240-volt industrial walkway mats.

## Features

- Automatically turns mats on when temperature drops below 35-degrees F
- LED indicator that illuminates when the thermostat is activated
- Will remain activated until the ambient temperature rises above 50 degrees F
- For use with residential walkway mats and stair mats
- Also compatible with 120-volt industrial stair mats

## Images

![HeatTrak HR-Therm3550 Thermostat Extension Cable for Snow Melting Mats, 10-Inch - Image 1](https://images-na.ssl-images-amazon.com/images/I/71VfX8zzirL.jpg)

## Customer Reviews

### ⭐⭐ 







  
  
    Works Almost
  

*by C***S on Reviewed in the United States on April 15, 2014*

This is a well made item, but fails to regulate the temperature as described.  This might work with one sidewalk mat, but definitely will not work with more load.  The problem is the current draw of the mats heats the thermostat and causes it to kick off an on.  It will keep the mats on long enough to melt light snow.  Bottom line it failed to operate as described.

### ⭐⭐⭐⭐ 







  
  
    Heat Trak
  

*by L***E on Reviewed in the United States on January 24, 2013*

Well, we haven't had much snow this year but the Heat Trak has melted it quickly.  The thermostat comes on about 32F and shuts off at 45C. I don't have to be home or awake to turn it on.  I just wish there was an easier way to turn it on/off when it's bitter cold but no snow.  Maybe a switch for the outlet??

### ⭐⭐ 







  
  
    Frozen out by Disposable unit
  

*by 6***. on Reviewed in the United States on December 24, 2014*

Frozen out: POOR QUALITY after 2 winters & FAILUREvery disappointed especially for price.WOULD NOT RECOMMEND THIS TO FRIENDSIn general, pretty satisfied with stair treads, door mat, & sidewalk runners.

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**Shop now:** [https://www.desertcart.hr/products/12921873-heattrak-hr-therm3550-thermostat-extension-cable-for-snow-melting-mats](https://www.desertcart.hr/products/12921873-heattrak-hr-therm3550-thermostat-extension-cable-for-snow-melting-mats)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-18*