Eve Thermo

Smart Radiator Valve


Control your room temperature with ease using the app, Siri, schedules, or based on your presence.

Autonomous schedules
Siri voice control
Bluetooth & Thread
Easy setup without bridge
Highest data privacy
Made in Germany

Maximize comfort and convenience...

...with lower heating costs.

Eve Thermo synchronizes your heating based on your routine: You’ll be able to save energy when away from home or make your place a cozy haven of relaxation when you’re there.

...with schedules.

Fed up with the daily grind of having to continuously adjust your radiator valves? Automate your heating, and add schedules for workdays and the weekend, or even for each day of the week. And as all schedules are stored right on Eve Thermo, the accessory can get on with its job independently of any home hub, iPhone, or internet connection.

...based on presence.

Don’t live life to a fixed schedule? Have Eve Thermo reduce the temperature when everyone’s left for the day. Then as soon as someone returns home, have Eve Thermo raise the temperature automatically – all configured via your iPhone using HomeKit, not a proprietary cloud service. 


To control your heating based on location, you need a home hub (HomePod mini, HomePod or Apple TV).

...via the Eve app and Siri.

Use the app, talk to Siri, or control Eve Thermo via the built-in touch controls to set your perfect temperature. Eve Thermo has an LED display so you can see the temperature and set it to the desired level directly on the accessory itself.

...when on the go.

Unexpectedly heading home early from work or just arrived back from a vacation and want to make your home nice and toasty ready for when you get there? No problem – thanks to the direct connection to your home hub, you’re always in control of your abode (HomePod, HomePod mini, or Apple TV).


Heat each room to suit.

Set the perfect temperature in each room for your wellbeing and to get a good night’s sleep. Set your bedroom to 17 degrees, your lounge to 21 degrees, and have your bathroom warm up to 23 degrees ready for you in the morning.


Saving energy made easy.


Eve Thermo pauses the heating automatically when you ventilate the room – by detecting rapid temperature drops or thanks to seamless integration with Eve Door & Window (requires a HomeKit home hub*).

Open Window Detection

Saving energy made easy.


Eve Thermo pauses the heating automatically when you ventilate the room – by detecting rapid temperature drops or thanks to seamless integration with Eve Door & Window (requires a HomeKit home hub*).

Window open

Pause heater


Alongside Bluetooth, Eve Thermo supports Thread. This technology makes your smart home network more responsive, robust, and increases its reach – the only other thing you need is HomePod mini or Apple TV 4K (2nd generation, 3rd generation 128 GB). More about Thread.


Thread is also a pillar of the new Matter standard.

Use cases

Up and running within minutes.

Eve Thermo is quick and easy to fit: Unscrew your existing thermostat either by hand or using a wrench, screw on Eve Thermo, and set up your new smart radiator valve in just a few steps using the Eve app. And there’s no need to sweat about swapping thermostats as there’s zero chance of water escaping. Watch the installation video

Vacation mode.

Heading out of town? With a tap, you can reduce the temperature throughout your home when away. Now while you’re out exploring the world, Vacation Mode will pause your schedules and maintain the temperature you set.

Protection and maintenance.

Eve Thermo prevents scale building up in your radiator as it opens the valve on a regular basis. And with built-in Valve Protection to protect against frost, you’ll never have to worry again about your pipes freezing solid. 

User-friendly in every way.

100% Privacy

Seamless Integration

Future-Proof Technology

“The Eve Thermo is a well designed device with an app to match.”

Tech Advisor

“The Elgato Eve Thermo is simply the coolest way of managing your radiators, solves a real problem and is a doddle to install.”

Trusted Reviews

“So if you’re sick of getting up and down to adjust your heating, the Eve Thermos might save you some effort.”


Eve Thermo can be controlled using the Eve app, the Home app and Siri.

Eve app
Home app

Good to know

Eve Thermo is a Minimal Thread Device (MTD) – but what does that mean? 
Do I need to get a plumber to fit Eve Thermo?
Do I need to subscribe or register?
Will Eve Thermo continue to work if there’s a power outage or issues with my internet connection?
Do I need a hub?
Privacy by Design. What happens at home, stays at home.
Need help? Contact us!

More information


Technical Details

  • iPhone or iPad with the latest version of iOS/iPadOS
  • Controlling this HomeKit-enabled accessory automatically and away from home requires a HomePod or an Apple TV (4th generation or later) as a home hub

Valve Compatibility

M 30 x 1,5

Supplied adapters: Danfoss RA, RAV, RAVL


2x AA Replaceable Batteries

Wireless Connection



54 x 67 x 85 mm

In the Box

Eve Thermo, 2x AA Replaceable Batteries, Mounting Screw, Adapter Set (Danfoss RA, RAV, RAVL), Quick Start Guide



Made in Germany by EUROtronic.

Powered by Eve

Eve Thermo is easy to setup:
Installation video
Quick Start Guide: EN / DE / FR / PT