---
product_id: 53855484
title: "Horstmann Heating Control Programmers HRT3"
brand: "horstmann"
price: "$4.40"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.ec/products/53855484-horstmann-heating-control-programmers-hrt3
store_origin: EC
region: Ecuador
---

# Energy Saving Trust Approved for eco-smart living 3-wire installation for seamless setup Built-in frost protection for winter-ready comfort Horstmann Heating Control Programmers HRT3

**Brand:** horstmann
**Price:** $4.40
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay warm, save smart — the thermostat that works as hard as you do! ❄️

## Quick Answers

- **What is this?** Horstmann Heating Control Programmers HRT3 by horstmann
- **How much does it cost?** $4.40 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/53855484-horstmann-heating-control-programmers-hrt3)

## Best For

- horstmann enthusiasts

## Why This Product

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

## Key Features

- • **Reliable & Ready:** Corded electric power means no batteries to worry about—always on, always dependable.
- • **Winter-Proof Comfort:** Frost protection ensures your heating kicks in before the chill sets, safeguarding your space.
- • **Effortless Installation:** 3-wire mechanical setup means quick, hassle-free integration into your home system.
- • **Eco-Conscious Efficiency:** Energy Saving Trust approval guarantees reduced bills and a smaller carbon footprint.
- • **Sleek & Functional Design:** Compact rectangular shape with clear LCD/LED display fits stylishly on any wall.

## Overview

The Horstmann HRT3 Heating Control Programmer is a compact, wall-mounted thermostat featuring a straightforward 3-wire mechanical installation, frost protection to prevent cold damage, and Energy Saving Trust approval for efficient energy use. Designed for reliability and ease, it offers a clear LCD/LED display powered by corded electric supply, making it an ideal choice for millennial professionals seeking smart, eco-friendly home heating control.

## Description

Horstmann Room Thermostat

## Features

- 3-Wire Installation
- Mechanical
- Frost Protection
- Energy Saving Trust Approved
- IP rating: IP20

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Horstmann |
| Part number | HRT3 |
| Item Weight | 80 g |
| Product Dimensions | 50 x 50 x 50 cm; 80 g |
| Item model number | HRT3 |
| Style | Programmable |
| Shape | Rectangular |
| Power source type | Corded Electric |
| Item Package Quantity | 1 |
| Display style | lcd or led |
| Plug profile | Wall Mount |
| Special Features | Frost Protection |
| Included components | no_components |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Horstmann
- **Special feature:** Frost Protection
- **Temperature Control Type:** Programmable
- **Included components:** no_components
- **Power source:** Corded Electric
- **Shape:** Rectangular
- **Display type:** lcd or led
- **Control type:** Button Control
- **Control method:** Touch
- **Connectivity protocol:** Wi-Fi

## Images

![Horstmann Heating Control Programmers HRT3 - Image 1](https://m.media-amazon.com/images/I/31j50gbM1TL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Worth buying
  

*by P***L on Reviewed in the United Kingdom on 21 October 2015*

very good for the price from a good manufacturer. This replaces one that lasted for over 10 years and was getting tired

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Good replacement switch
  

*by M***C on Reviewed in the United Kingdom on 8 June 2017*

Thermostat looks good, easy to fit...internals a little bit flimsy looking, but does the job ok. (Ideally you need a live and neutral power supply as well as a switch wire).

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Heating on or of.
  

*by D***E on Reviewed in the United Kingdom on 8 December 2019*

Arrived on time, fitting was easy, heating back working, great.

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**Shop now:** [https://www.desertcart.ec/products/53855484-horstmann-heating-control-programmers-hrt3](https://www.desertcart.ec/products/53855484-horstmann-heating-control-programmers-hrt3)

---

*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-22*