Wall thermostat with switching output – for brand switches, 230 V, anthrazite

Upgrade your existing underfloor heating to smart quickly and easily: To do this, simply replace your existing wall thermostat with the smart wall thermostat with switching output.

Wall thermostat with switching output – for brand switches, 230 V, anthracite

Even makes your conventional underfloor heating smart.

Feeling a pleasant warmth under your feet in the morning after getting up gives you a very special feeling of security. There are lots of good reasons to have underfloor heating. But what if you could also control your existing underfloor heating in a smart way? Homematic IP has the ideal solution for this: Your previous wall thermostat can simply be replaced with the smart Homematic IP wall thermostat - ready to go!

Colour variants
anthracite
anthracite
white
white
Handy mit Homematic IP Logo und einem Pluszeichen

Retrofitting easily and in a smart way

Simply replace the conventional wall thermostat of your existing installation with the Homematic IP wall thermostat.

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The Homematic IP wall thermostat is installed on the free flush-mounted box and controls the conventional 230 or 24 V actuator of your underfloor heating system. Now you can control the actuators individually via the app.

Sparschwein

Save on heating costs

You can easily set the individual temperature curves in the Homematic IP app.

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With up to three adjustable heating profiles and 13 changes per day, you only ever heat when you want to. The window open detection ensures that the temperature is lowered during ventilation.

Design mit Pfeil

Great flexibility thanks to a modular design

The combinable design allows the wall thermostat to be used individually.

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  • Adhesive or screw mounting in the supplied interchangeable frame with the supplied mounting material
  • Integration into existing switch series with 55 mm frame size of the most popular manufacturers
  • Mounting on a free flush-mounted box with the mounting plate optimised for this purpose
  • Integration with the Homematic IP desktop stand (HmIP-DS55) for a longer battery life
  • As an alternative to battery operation, the wall thermostat can also be supplied with 230 V via the Homematic IP power supply unit for brand switches (HmIP-BPS).
Colour variants
anthracite
anthracite
white
white
Thermostat

Comfort temperature at any time

Control the room temperature according to your needs - at home and when you're out and about.

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You can do this easily via the app, directly on the device using the dial in 0.5 °C steps, or conveniently via voice control (using Amazon Alexa or Google Assistant).

Kontrollsystem

Flexible control possibilities

Use the radiator thermostat by itself (stand-alone operation) or as part of your smart home system.

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  • In stand-alone operation: Manual operation and operation directly on the device The wall thermostat passes its commands directly to the floor heating controller (e.g. HmIP-FALMOT-C12).
  • As a part of a smart home: Use the Homematic IP access point and the free app to create the basis for your smart home: Your radiator thermostat is integrated into it, and you can add a smart function to many devices in your home.
360 Grad 3D

Our products in a new dimension.

Rotate the product in all directions, zoom in and experience it in three dimensions. This gives you a detailed picture of your favourite products.

Die passende Farbe zu jeder Wandoberfläche - 
Probieren Sie es aus!

Mit unserem Design-Simulator wählen Sie zunächst eine Wandoberfläche aus. Dann lassen Sie sich darauf ein Homematic IP Produkt anzeigen. So sehen Sie auf einen Blick, welche Kombination am besten passt.

Background
concrete
plaster
beige wall paint
blue wall paint
tiles 1
tiles 2
wood
children's room
Color
#505050
anthracite
#ffffff
white

Your advantages at a glance

Do you want to live more safely, save money and protect the environment, or simply increase your living comfort? There are many good reasons for a Smart Home. Find out more now!

Control heating

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Save energy

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Use the app

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Connect devices together

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Homematic IP: Smart living. Simply exciting.

Homematic IP means modern, flexible and secure technology from the European market leader*. Let the advantages of our system win you over, and start living smarter straight away. 

Homematic IP
With some smart home providers, you have to make a choice: Do you have everything wired, or do you go fully wireless? Some systems are also hermetically sealed and do not accept devices from other manufacturers. Here at Homematic IP, we have a different approach. We are guided by you!
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Die Homematic IP App

Konfigurieren Sie in der Homematic IP App alle Einstellungen für Ihr Smart Home, steuern, regeln und überblicken Sie damit jederzeit Ihre Geräte. Es werden keine persönlichen Daten erhoben, außer der IP-Adresse.

The Homematic IP app

Configure all the settings for your smart home in the Homematic IP app, and use it to control, regulate and monitor your devices whenever you want – without providing any personal data!
Homematic IP Wired
A smart home system is particularly robust, interference-proof and reliable when the devices communicate with each other via wired connections. And data transmission is very fast with cables, too. That all comes together with Homematic IP Wired.
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Always here for you and your queries.

Whether you have a question about a product, something isn’t working as you wanted, you’re looking for a specialist partner, or you simply want to give us feedback: we are always here to help.

FAQ

FAQs

This is where you’ll find the most important questions and our answers about our smart home solutions.

Service

Service

Have you purchased a Homematic IP product and now have questions about how it works? Our technical support team will be happy to help you.

Installateur Suche

Specialist tradespeople

Are you looking for a good specialist tradesperson near you? Simply use the convenient search function here on our website.

Händler Suche

Dealers

You can get Homematic IP products and good advice all over Germany. Find the right dealer near you here.

Innovations, ideas, impulses: your news

Get first-hand news about the latest innovative smart home solutions. 

View all news

Elegance meets intelligent control: the new glass series from Homematic IP
Brilliant prospects for design lovers: For the first time, eQ-3 is presenting wall-mounted push-buttons and thermostats made of high-quality glass that fit perfectly into stylish interiors. Simple operation and flexible programming make the exclusive glass product line a highlight in the smart home.
17. March 2025
Product Variants

Wall thermostat with switching output – for brand switches, 230 V

Order information

Product Name (Short)
HmIP-BWTH-A
Item Number
159928A0
EAN Code
4047976599288

Technical data

Supply voltage
230 V/50 Hz | 24 V/50 Hz
Switching capacity
1 A | 24 W
Load type
Ohmic load
Cable type and cross section
Rigid and flexible cable, 0.75-1.50 mm²
Degree of protection
IP20
Ambient temperature
0 to 50 °C
Dimensions with frame (W x H x D)
86 x 86 x 54 mm
Dimensions without frame (W x H x D)
55 x 55 x 54 mm
Weight
136 g
Radio frequency
868.0-868.6 MHz/869.4-869.65 MHz
Typ. open area RF range
130 m | 160 m
Installation
Only in switch boxes (device boxes) in accordance with DIN 49073-1.

Tutorial: Adding a wall thermostat | Homematic IP

Boost function - made simple | Homematic IP

Wall thermostat – made simple | Homematic IP

General

Homematic IP User Guide

Version: September 2024

22.77 MB
Overview of Homematic IP QR Code Stickers
50.09 KB

Operating manuals

Here you can download operating instructions for our Homematic IP products.

Operating manual Thermostat with switching output – for brand switches, 230 V

Short description: HmIP-BWTH-A | Product reference: 159928A0

11.53 MB

Product data sheets

See our data sheets for features and technical specifications of our products.

Datasheet Wall Thermostat with switching output – for brand switches, 230 V

Short description: HmIP-BWTH / HmIP-BWTH-A | Product reference: 150628A0 / 159928A0

1.21 MB
Product data sheet Wall thermostat with switching output – for brand switches

Short description: HmIP-BWTH / HmIP-BWTH-A | Product reference: 150628A0 / 159928A0

1.51 MB

Overviews and comparisons

With our overviews, you can quickly find the right Homematic IP product for your needs.

Compatibility between push-to-pair products
685.88 KB

Declarations of conformity

All EU declarations of conformity for download.

Declarations of conformity Wall Thermostat with Switching Output – for brand switches, 230 V, anthracite

Short description: HmIP-BWTH-A | Product reference: 159928AxA

128.94 KB