Towel Rail Controller Terma KTX3 Thermostatic

From £60

Includes VAT and delivery.

Terma KTX 3 Controller – Provides 24 Hour timer Functionality – used as a heat source in electric towel rails, electric radiators and dual fuel towel rails.


Towel Rail Controller Terma KTX3 Thermostatic – A Detailed Review

The Terma KTX3 Thermostatic Controller is an effective and convenient way to regulate the temperature of your electric towel rail. In this comprehensive review, we will examine the key features, advantages, drawbacks, and alternatives of this product.

Overview of the Terma KTX3 Controller

The Terma KTX3 is designed to provide precise temperature control for your electric radiator or towel rail. It allows you to set your desired heat output between 30°C to 60°C in increments of 1°C.

Some of the main features include:

  • 30 temperature settings
  • Daily 24-hour timer
  • 0.5 to 4 hour drying function
  • LCD display shows set and current temperature
  • 4 buttons for power, drying mode, and adjusting temperature

This towel rail controller can help you optimize the performance of your heating system and create the perfect ambient temperature in your bathroom.

Benefits of the Terma KTX3 Thermostatic Controller

There are several advantages to using the KTX3 controller for your towel rail:

Precise Temperature Regulation

The wide range of temperature settings allows you to fine tune the amount of heat dissipated. This results in energy savings and avoids overheating.

User-Friendly Interface

With its simple and intuitive buttons and clear LCD display, this towel rail controller is easy to operate even for those less tech-savvy.

Flexible Timer Functions

The integrated 24-hour timer and 0.5-4 hour drying mode provides flexibility and convenience in operating your electric heating.

Sleek and Compact Design

Made from quality materials, the KTX3 has a slim yet durable construction that looks elegant and blends seamlessly into any bathroom décor.

Added Safety Features

It is IPx4 rated making it safe for use in damp bathroom environments. The Class 1 insulation also prevents potential electric shocks.

Towel Rail Controller Potential Drawbacks to Consider

While the Terma KTX3 has many benefits, there are a few downsides to evaluate:

  • No remote control capability
  • Limited temperature range compared to other controllers
  • Short power cord length may require extension cord
  • Lacks wifi connectivity or app control

Alternatives to Consider

Here are some other popular electric towel rail controllers you may want to consider as well:

Warmup Tempo Digital Thermostat

  • Wider temperature range from 5°C to 85°C
  • 7-day programmable schedule
  • Remote control for convenient adjustment

Heat Mat Therma Controller

  • Budget-friendly option
  • 24/7 or weekend/weekday programming
  • External floor temp sensor

Salus RT500RF Programmable Thermostat

  • App control via smartphone
  • Adaptive start feature learns heating cycles
  • Zone control for multi-room systems

Maintenance Tips for Towel Rail Controller

To keep your Terma KTX3 controller working properly and safely, follow these maintenance practices:

  • Wipe down with soft cloth to remove dirt and dust
  • Check power cord for damage periodically
  • Ensure it is not covered by towels or items to avoid overheating
  • Check battery compartment and replace batteries as needed
  • Test function of buttons and display screen
  • Confirm correct temperature readings with separate thermometer
  • Check for error codes and troubleshoot as required

Frequently Asked Questions

Q: Is the Terma KTX3 controller hardwired or battery operated?

A: It operates on 2 x AA batteries, so no hardwiring required.

Q: Can I use this controller for radiators other than towel rails?

A: Yes, it is compatible with most electric radiators, but confirm specifications before installing.

Q: Does the KTX3 controller come with the temperature sensor probe?

A: No, the TS1 sensor probe must be purchased separately.

Q: What is the maximum wattage the controller can handle?

A: It has a maximum load of 16 amps / 3120 watts.

Q: Does it have a built-in frost protection mode?

A: No, the Terma KTX3 does not have an anti-frost feature. The minimum temperature is 30°C.

Cost Comparison of Top Towel Rail Controllers

Model Price Key Features
Terma KTX3 £55 24 hr timer, 0.5-4hr drying mode, simple interface
Salus RT500RF £90 Remote app control, adaptive programming, multi-zone management
Warmup Tempo £65 Large temp range, 7-day programmable, remote control
Heat Mat Therma £35 Budget-friendly, external sensor, weekend/weekday mode

When comparing costs, consider the controller features that would provide the most value based on your needs. The Terma KTX3 provides a good balance of temperature precision, energy savings, and ease of use. While it lacks app control, its affordable price makes it a great mid-range option for many homeowners.


For conveniently regulating electric towel rails or radiators in the bathroom, the Terma KTX3 Thermostatic Controller is an excellent choice. It allows precise temperature control within a 30°C to 60°C range to optimize comfort and efficiency. The intuitive interface, flexible timer capabilities, and safety features add to the unit’s appeal. Just be aware of the potential drawbacks like limited temperature range and short power cord. For those seeking smartphone app integrations, you may want to consider upgrading to a wifi-enabled model. But overall, the KTX3 delivers very solid performance and quality for the reasonable price point.

Take Action Now!

Explore our best-selling radiators in the UK and choose one that fits your budget and requirements. Don’t settle for a subpar heating system and upgrade your home or business with the best selling radiators today. Your comfort, energy bills, and the environment will thank you.

It is crucial to seek guidance from the manufacturer and a certified professional for the installation process to ensure safety and compliance with all technical specifications and requirements. Proper installation is key to the optimal performance and longevity of the product.

Additionally, professional installation may be necessary to maintain the product’s warranty. Therefore, it is highly recommended to consult with experts and not attempt to install the product yourself unless you are qualified to do so.

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