Homematic IP Radiator thermostat? Flex (HmIP-eTRV-F) (white)

Delivered between Wed, 2.7. and Fri, 4.7.
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Product details

Flexible heating – and saving energy at the same time. If you want to heat according to your individual preferences while saving energy, you can now do so particularly cleverly and thoughtfully with the Homematic IP radiator thermostat – flex. This device can even be operated without a dedicated smart home system. With three individually adjustable heating profiles and 13 possible changes per day, you can save up to 33% on heating costs. The large, high-contrast E-Paper display allows for easy reading of the temperature and can be adjusted to the mounting orientation. The display becomes even more personalized with the option to choose between a detailed and a simplified view.

Installation: The radiator thermostat – flex is easily mounted on the radiator without any intervention in the heating system. Included in the package is a high-quality metal union nut for secure installation on all common radiator valves with M30 thread, as well as two AA batteries that provide power for up to 3 years.

Settings: After installation, you can set individual temperature profiles using the free Homematic IP app – with up to 13 changes per day across three adjustable heating profiles. For example, you can come home to a pre-warmed bathroom in the morning, save valuable heating energy when you're away, and enjoy your evening in the living room at your desired room temperature.

Control: Control the Homematic IP radiator thermostat – flex directly on the device using the buttons, conveniently via the app, whether at home or on the go, or simply by voice control through Amazon Alexa or Google Assistant. With a Homematic IP Access Point, you lay the foundation for your smart home: your radiator thermostat – flex will be integrated into it, and you can smartly add many other devices.

Smart highlight: The Homematic IP radiator thermostat – flex truly reacts smartly in conjunction with window open detection.

Key specifications

Thermostat type
Radiator thermostats
Suitable for
Radiator
mounting style
Screws
Smart Home
Compatible
Smart home ecosystem
Homematic IP
Power supply
Battery operated
Items per sales unit
1 Piece
Item number
49071863

General information

Manufacturer
Homematic IP
Category
Thermostats
Manufacturer no.
160230A0
Release date
16.9.2024

Colour

Colour
White
Exact colour description
White

Thermostat properties

Thermostat type
Radiator thermostats
Suitable for
Radiator
temperature control
Radio
Temperature range
0° - 50° C
Number of switching times per day
13
connector type
With thread
Thermostat functions
Automatic time changeover summer/winter timeFrost protection settingHoliday modeNight modeRemote controlSuitable for heatingTemperature displayTimerValve protection functionWeekday programmableWindow open detection
Display
Digital
mounting style
Screws

Smart home features

Smart Home
Compatible
Smart home ecosystem
Homematic IP
Communication standard
Amazon Alexa

Origin

Country of origin
Germany

Voluntary climate contribution

CO₂-Emission
Climate contribution

Safety

Protection type (IP code)
IP20

Power supply

Power supply
Battery operated

Battery properties

Battery size
AA / LR6 / LR06 / Mignon / R6 / R14505
Number of batteries
2
Voltage
3 V

Scope of delivery

Items per sales unit
1 Piece
Scope of delivery
AA batteries, operating instructionsHomematic IP Radiator Thermostat - flex, Danfoss adapter (RA, RAV and RAVL), support ring and mounting material, 2x 1.5 V LR6Mignon

Product dimensions

Length
9.40 cm
Width
5.30 cm
Height
5.20 cm
Weight
0.18 kg

Package dimensions

Length
14.90 cm
Width
11.40 cm
Height
9.70 cm
Weight
348 g

30-day right of return
24 Months Warranty (Bring-in)
12 additional offers

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Thermostats» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 1.Oventrop
    0 %
  • 3.Eberle Controls
    0.1 %
  • 4.Homematic IP
    0.3 %
  • 4.Honeywell
    0.3 %
  • 6.Bosch Smart Home
    0.4 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • Homematic IP
    Not enough data
  • 1.Ecoheat
    0 days
  • 1.EQ-3
    0 days
  • 1.Hama
    0 days
  • 1.Meross
    0 days

Return rate

How often is a product of this brand in the «Thermostats» category returned?

Source: Digitec Galaxus
  • 9.Sonoff
    3.4 %
  • 12.Eve
    3.7 %
  • 12.Homematic IP
    3.7 %
  • 14.Aqara
    4.3 %
  • 15.AVM
    5.5 %
Source: Digitec Galaxus

Translation: machine translated
Overall ratingVery good87/100
Without ratingNo rating
Spiegel TestsSmarte Thermostate im TestReleaseJune 2025
  • PositiveFlexible use with and without app and control centre
  • Positive Quiet motor
  • Positive Long battery life
  • Positive Data-saving in app mode
  • Positive Expandable
  • NegativeFew additional services
Very good95/100
digital home Logo
digital homeSingle testReleaseMay 2025
  • PositiveFast set up
  • PositiveE-Ink display
  • NegativeControl centre required

With the Flex radiator thermostat, Homematic IP offers a smart thermostat with a stylish design and good build quality. It can be integrated into the Homematic IP world or operated as a stand-alone product.

Good79/100
Computer Bild Logo
Rank 1 out of 2Computer BildHeizkörperthermostate im TestReleaseFebruary 2025
  • PositiveLarge display
  • PositiveHeating according to the weather
  • PositiveCan be used without app and access point
  • NegativeNo GPS-based heating
  • NegativeNot compatible with Apple Home

Both thermostats are part of a full Homematic IP universe for the smart home. Functions such as heating schedules, economical pre-heating or holiday mode are easy to operate via app, and the Flex controller can also be operated via the large e-ink display if necessary, without an access point or app...