Bosch Smart Home Room thermostat II

17Ratings
Test reportsVery good based on 2 tests
Delivered the day after tomorrow
Only 3 pieces in stock
free shipping

Colour2

Product details

The smart room thermostat II 230 V regulates existing underfloor heating systems and other wired heating systems. In addition to the room temperature, it also displays the heating status and measures the relative humidity. It can be controlled flexibly, e.g. mobile via app, on the device, by voice via Siri, Amazon Alexa and Google Assistant, but also via individual time programmes or in scenarios.

Key specifications

Thermostat type
Room thermostat
Suitable for
Radiator
mounting style
Flush-mounted
Smart home
Compatible
Smart home ecosystem
Amazon Alexa, Apple Home, Google Home
Power supply
Electrical connection
Items per sales unit
1 pcs.

General information

Item number
25279046
Manufacturer
Bosch Smart Home
Category
Thermostats
Manufacturer No.
8750002388
Release date
4.2.2023
Sales rank in Category Thermostats
27 of 3034

Colour

Colour
White
Exact colour description
White-Silver

Material

Material group
Plastic
Material
Plastic

Thermostat properties

Thermostat type
Room thermostat
Suitable for
Radiator
temperature control
Radio
Thermostat functions
Window open detection
mounting style
Flush-mounted

Smart home features

Smart home
Compatible
Smart home ecosystem
Amazon Alexa, Apple Home, Google Home
Communication standard
ZigBee

Origin

Country of origin
China

Sustainability

Manufacturer commitment
SBTi

Voluntary climate contribution

CO₂ emissions
18.34 kg
Climate contribution
CHF 0.44

Safety

Protection type (IP code)
IP21

Power supply

Power supply
Electrical connection

Scope of delivery

Items per sales unit
1 pcs.
Scope of delivery
Flush-mounted supply 230 V, Jumper cable, Quick Start Guide Set

Product dimensions

Length
3.50 cm
Width
8.60 cm
Height
8.70 cm
Weight
0.24 kg

Package dimensions

Length
18 cm
Width
5 cm
Height
10 cm
Weight
212 g

Ingredients and instructions for use

Ingredients
1 x Control unit room thermostat II 230V 1 x flush-mounted housing 230V 1 x Wire jumper 1 x Quick Start Guide Set (11 national languages).

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

Compare products

Show all

Goes with

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
  • 9.Homematic IP
    0.7 %
  • 9.tado°
    0.7 %
  • 12.Bosch Smart Home
    0.8 %
  • 12.Sonoff
    0.8 %
  • 14.Meross
    1.2 %

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
  • Bosch Smart Home
    Not enough data
  • 1.Aqara
    0 days
  • 1.Homematic IP
    0 days
  • 3.Danfoss
    1 day
  • 4.Shelly
    2 days

Return rate

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

Source: Digitec Galaxus
  • 2.Ecoheat
    1.3 %
  • 3.Homematic IP
    2.3 %
  • 4.Bosch Smart Home
    2.4 %
  • 5.Shelly
    2.6 %
  • 5.Sonoff
    2.6 %
Source: Digitec Galaxus

Translation: machine translated
Overall ratingVery good94/100
Without ratingNo rating
Heise onlineSingle testReleaseApril 2026
  • PositiveUnusual design with LED matrix display
  • PositiveCan be integrated into Home Assistant
  • PositiveSimple manual operation thanks to rotary control
  • NegativeDisplay only for a maximum of 30 seconds
  • Negativequite expensive

Thanks to its timeless white and silver design and clear LED matrix display, the Bosch Room Thermostat II 230V is one of the most visually appealing controllers for underfloor heating systems. In terms of operation, it impresses with its haptically high-quality rotary control, which allows intuitive, manual temperature adjustment - even if this may be less necessary with smart heating plans...

Very good94/100
Heimwerker Praxis Logo
Ranking 1 out of 6Heimwerker PraxisSmart Home Anlage im TestReleaseMarch 2025
  • PositiveInstallation
  • PositiveProgramming

    The Bosch Smart Home II control unit we tested is very easy to install and programme and is very stable in operation. As the individual components already have a considerable price tag, it is comforting that it is no problem at all to set up or expand the system step by step, room by room...