Heltun  |  SKU: HE-HT01-GKK

Z-Wave Plus V2 Heltun Heating Thermostat

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The Z-Wave Plus V2 Heltun Heating Thermostat is a sleek and intelligent solution for controlling electrical heating systems

With a slim profile of just 9mm, it boasts a large display and six highly sensitive touch buttons for easy operation

It offers advanced features such as a 7-day temperature schedule, ambient temperature and humidity sensors, and an external NTC sensor for precise temperature measurement

Compatible with multi-protocol smart home hubs, this thermostat works seamlessly with other smart devices in your network, providing maximum comfort and energy efficiency.

When Your Comfort Matters

The HE-HT01 is ‘Impossibly Smart’ and ‘Impossibly Thin’ Heating Thermostat, designed to maintain constant room and floor temperatures by providing sensors for both ambient and radiant floor heating systems. It controls electric heating systems like radiators, convection or electric fireplaces, plus boilers, and electric underfloor heating. Built-in Power Consumption System precisely monitors how much energy you used during any particular day, week, or month.

Additional Sensors

When an electronic device carries out its function, a certain amount of heat is generated. As a result, the ambient temperature is usually reported incorrectly, with merely a 1.5-2.0 degrees Celsius precision. HELTUN engineers added two additional internal sensors that consider excess heat generated from the device itself, whilst a special compensating software calculates the ambient temperature with an incredible 0.2-0.3 degrees Celsius precision.

Inputs & Outputs

You can connect an NTC temperature sensor to HELTUN thermostat (3m long and 3.5mm thick NTC sensor is included in the box) or use your existing sensor to control floor/roof temperatures. This sensor can be installed under the floorboard, on the roof or under the decking, allowing you to accurately measure the chosen surface temperature. It is fully compatible with NTC sensors from other manufacturers, so there is no need to replace existing sensors from your old thermostat when switching to HELTUN.You can also control HELTUN thermostat by connecting it to an external system, such as linking it to the house alarm system, which will automatically reduce the ambient temperature when the house is empty.


HELTUN thermostat touch buttons are so sensitive that they react even before you physically touch them, processing the action at a 1-2mm distance. The buttons are:Manual control button to switch your heating on or off manually. "Mode" button to quickly change the operating mode of the thermostat (e.g. switch to economy mode or to the fast floor drying mode, etc.) "Time" button that allows you to quickly adjust the temperature for different time of day. "Settings" button that allows to modify up to 30 various settings and parameters of the thermostat. "+" and "-" buttons for adjusting the temperature.


HELTUN thermostat’s large LCD screen shows all the necessary information simultaneously and does not require any additional commands to access it. There is an instant access to information from all sensors: ambient room temperature, air humidity, data from the external sensor (e.g. floor, decking or roof temperature), current temperature settings, Thermostat’s operational mode, date and time. Automatic screen brightness control seamlessly adjusts to the ambient light conditions, making it easy to read even in the dark.

Operating Modes

COM, ECO, VAC modes constantly maintain the set temperature. The user can easily change the temperature set for each mode. To do this, simply press the "Mode" button to select the desired mode, and use the "+" and "-" buttons to set the required temperature. In most thermostats, this data can only be changed via the settings menu, causing a lot of inconvenience, not to mention that in some thermostats these figures are set by the manufacturer and cannot be changed. The DRY mode switches the thermostat to the rapid heating mode at a higher temperature and, after a certain time switching it back to the previously set mode. This function is mainly used for quick post-wash floor drying. MAN mode (manual control) is used to switch the heating on and off manually. TIME mode allows to set a different temperature for Morning, Day, Evening and Night period for each 7 days of the week.

Time Mode

Reduce your power bill by up to 50% and help look after the environment by activating the TIME mode.Adjust home temperature according to your habits by reducing it while you are away from home and increasing in the evenings and early mornings.On average, people spend about 12-14 hours a day at home. The rest of the time the house is empty and only needs minimum heating. Consider 7/8 hours of sleeping time in the hours spent at home, keeping in mind that the optimal sleeping temperature is considered to be 18 degrees Celsius.The thermostat can be set individually for morning, day, evening, night. For example, it can be assigned for Monday morning start at 7.00, then day temperature starting at 9.00 (when absent for work etc.), then evening starting at 18:00 (half an hour before occupants return). The night regime then begins at 23.30 (bedtime).You can have separate temperature settings for all 4 periods. But this is not all; as temperature can be programmed for each day of the week, weekends can be handled differently.

Automatic Comfort Control

Choose the functioning of temperature control based on floor, ambient or combined readings. The HELTUN Z-Wave thermostat can be fine-tuned to provide maximum comfort at all times. For example, if ambient temperature is within your set limits but floor temperature drops, the underfloor heating system will be switched on automatically. The system safeguards will not allow the temperatures to rise above or drop below the comfort level. 1) If control is based only on the ambient air sensor, the thermostat will regulate the ambient temperature, regardless of the floor temperature. 2) If control is based only on floor sensor, the thermostat will regulate the floor temperature, regardless of the ambient temperature. 3) If control is based on ambient sensor, but with floor temperature limits, the thermostat will maintain the specified temperature for air, but will not allow the floor temperature to deviate from the specified limits. 4) If control is based on floor sensor, but with ambient limits, the thermostat will maintain the specified floor temperature, but will not allow the ambient temperature to deviate from the specified limits.


Hysteresis defines when the thermostat should switch the heating on or off when temperature changes. For example, if the desired temperature is 25 degrees Celsius and hysteresis value is set to 0.5 degrees, it will switch the heating on when ambient temperature drops to 24.5 degrees Celsius. The higher your hysteresis value is set, the more energy you can save but at the same time the variations in your room temperature will be higher. The factory default is 0.5 degrees.

Safe & Save

The HELTUN Z-Wave thermostat has a special feature to protect the floor from overheating; Under any circumstances, the thermostat will not allow the floor temperature to go above 40C, regardless of the mode, since it can be harmful to the soles of the feet. In case of a power cut or disconnection from the main power source, internal memory is not erased – once you switch the device back on, all your saved settings will be fully functional. To prevent children from meddling with your thermostat settings, you can activate the special child-safe mode.

Easy Installation

The HELTUN thermostat can be easily installed into any standard wall socket (rectangular or round type).

Payment & Security

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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

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Still Have Questions About Z-Wave Plus V2 Heltun Heating Thermostat?

Frequently Asked Questions

What if it's incompatible with my existing smart home system?

We offer a no questions asked express return service. So, if you try Z-Wave Plus V2 Heltun Heating Thermostat and find it's not compatible with your system, you can easily return it.

How can I get technical support for it?

Our team of experts is available to assist you with any technical questions you may have via email and live chat.

Do you offer installation services?

While we don't offer direct installation services, we provide comprehensive online support through guides, videos, and access to our experts via email and chat. If you need an installer, we can often help connect you. With advancements in smart home tech, most of our products can be self-installed with guidance.

What if I struggle with installing or using after purchase?

We have experts who frequently use these products in their own homes, and they are well-acquainted with the ins and outs. This means we can provide unparalleled guidance and troubleshooting. You won't find this level of hands-on expertise at any other store.

How quickly will I receive my order?

If you place your order before 2:30pm in the UK, you can expect it the next day. For orders outside the UK, we offer express shipping options that will get your products to you within a few days.

Why should I choose to buy from Vesternet over other online stores?

When you buy from Vesternet, you're not just purchasing a product. You gain a partner with expertise in smart home technology. Our team is on-hand to assist with setup and provide valuable advice. While there might be cheaper options online, home automation can be complex, and having experts by your side can prevent costly mistakes.

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  5. Enjoy your automated home with increased Security, Comfort, Energy & Emergency monitoring, automated Heating & Lighting

Then easily add more devices ongoing as you choose


Z-Wave Plus V2 Heltun Heating Thermostat



Wiring Types Supported


Switch Types




Load Types


Load Rating

16 Total

Load Features


Sensor Features

Humidity, Light, Temperature, Temperature Input

Remote Features



Dry Contact Input, Heating, Hysteresis Control, LCD Screen, Power Monitoring, Smart Start

Battery Type



Z-Wave Plus V2

Operating Temperature


Operating Humidity





Black, White

Light Colour


Light Output


Colour Temperature


Luminous Intensity






Controller Type


Access Control Type




Flash Memory






DC Voltage




Battery Life



Embedded room temperature sensor: ±0.5°C. Embedded humidity sensor: ±3.0%RH

Active Element


Alarm Sound Level




IP Rating


Max Load


Max Transmitting Power


Overload Protection

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