The Homematic IP – Flex (HmIP-eTRV-F) (white) radiator thermostat with heating control is a modern smart radiator thermostat that allows every user to conveniently and intelligently control their home heating. It is intended for everyone who wants greater flexibility, energy efficiency and the possibility of advanced, yet simple, room temperature control.

This product makes it easier to maintain a pleasant home climate on a daily basis, allowing you to precisely set the temperature and adjust heating schedules, reducing costs and ensuring greater comfort. It is primarily intended for those who want to upgrade their home with advanced smart heating solutions and want to be able to control it via popular voice assistants.

Evaluation of key product features

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With this smart thermostat, you can easily control the heat in a single room, no matter where you are - at home, in the office or on the go. The connection works with Google Home and Amazon Alexa, which means you can also adjust the temperature via voice commands, which really makes everyday life easier. Thanks to the battery power, installation is quick and without complicated interventions in the electrical wiring.

The app lets you set custom heating schedules, and the thermostat's precise temperature control helps reduce energy consumption and unpleasant temperature fluctuations. The universal design is compatible with most standard radiator valves, so you can use it in almost any home.

Homematic IP Flex stands out with its customization options, fast response and quiet motorization that discreetly adjusts the temperature without disturbing sounds. Due to its ease of use, it is suitable for anyone who wants more control, less worries and a pleasant thermal experience in their home - and the app looks cool! If you are ready for less worries and more comfort in your space, this is the right choice for you.

Same summary

This thermostat is particularly suitable for users who want simple digital heating control on radiators without major interventions in the existing installation. Due to its battery power, it allows for quick installation and easy subsequent installation in an apartment or house. It is less suitable for those who have exclusively other types of heating in the premises (e.g. underfloor), or want a completely open integration platform with more advanced protocols. The advantage is the discreet design and the possibility of controlling the temperature via the application or locally.

Recommendation source: Enaa guides and team experiences.

User view

Users often choose this thermostat when they want to individually regulate the temperature in different rooms without having to upgrade the entire heating system. The practicality is most evident in apartments where radiators are the main source of heat, and setting schedules and remote control makes everyday life easier. User experience shows that such a smart solution is particularly useful in transitional periods and when we want to quickly adjust the heating according to the rhythm of life.

Because Homematic IP is known for its reliability and user-friendliness, it is often chosen by those looking for a proven solution in various smart homes and who want greater flexibility in the future.

Why buy at Enaa

With us, you can expect a carefully selected range of products from the smart thermostats category and professional advice based on the experience of our team. The Enaa platform enables safe and transparent purchasing, and users also appreciate our long-standing presence in Slovenia.

Answers to frequently asked questions

Is this thermostat suitable for all types of radiators?

The model is designed for use on standard radiators, but we recommend checking the connection on each radiator for correct installation.

What does battery power mean on this thermostat?

Battery power allows for easy installation without the need for electrical wiring, and battery replacement is required depending on the frequency of use.

Is an internet connection required for basic operation?

Basic functions such as temperature settings and schedules are usually accessible even without a constant internet connection, but some advanced functionality may require a connection to a smart home.

How is heating controlled via a mobile app?

You can set your desired temperatures, schedules or operating modes via the app, and all changes are transferred to the thermostat when it is connected to a central unit or hub.

Does the thermostat need maintenance?

We recommend regularly checking the battery level and replacing it if necessary; additional maintenance is generally not required.

Description updated: May 2026