Control your room temperature with ease using the app, Siri, schedules, or based on your presence. Eve Thermo synchronizes your heating to suit your routine: save energy when away from home or make your place a cozy haven of relaxation when you’re there.
Eve Thermo
Smart Radiator Valve
Smart Radiator Valve






Heat smart. Save energy.




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 22 degrees ready for you in the morning – anything’s possible with Eve Thermo.


Talk or tap to control your home.
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.

Control on the go and on demand.
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 – with a home hub you’re always connected to your abode (Apple TV, HomePod or HomePod mini required).
Window open - Heating off
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.
Window open - Heating off
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.
Open Window Detection


Window open
Pause heater
No wasting precious time in the morning
Time is of the essence each morning for the Millers: Instead of turning down all the radiator valves manually, they both simply walk out the door. As soon as nobody’s home, the radiator valves are dialed down automatically to an energy saving temperature.
Save energy the smart way
The Penguin Group kids always have a cozy environment to play in: Schedules heat the rooms to a comfortable temperature automatically each morning before the kindergarten opens – and once all the kids have gone home, the temperature is lowered again to an energy saving level.
Hey Siri works for everyone
Heating on demand: At Sarah’s, no two days are ever alike. That’s why her home is heated to suit. So, no matter if it’s the kids, parents, or grandparents who want to warm the place up, anyone can control the heating via her HomePod and by simply saying "Hey Siri, set the lounge temperature to 72 degrees".
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.
Command on demand.
Set scenes in a flash via Siri, your Control Center, or Apple Watch. Easily engage accessories using the Home app on your iPhone, iPad, or iPod touch. And to see concise records, gain insights, and enjoy full control of your connected home, look no further than the Eve app.

Safe as houses.
Eve accessories are exclusively HomeKit-enabled. Your personal data is under no circumstances captured, saved to a cloud, or sold. Even when accessing your home remotely via your home hub, all data is end-to-end encrypted and stored on your iPhone or iPad. Superior privacy, advanced security, and absolute peace of mind – it’s all here.
Learn more

Truly smart.
Equipped with Bluetooth low energy technology, Eve accessories ensure reliable operation independently of bridges. Setup is quick and easy. Energy consumption is minimal. And accessory response time is snappy.
Compatible with your ecosystem.
Straight out of the box, Eve accessories work with your iPhone, iPad, iPod touch, and Apple Watch. Your HomePod, HomePod mini or Apple TV will serve as a home hub, seamlessly automating your accessories and keeping you connected while out and about.

“Because each Eve Thermo is assigned to a single room, it can accomplish a steadier temperature than a single central thermostat.”
– Slant –
“If you have an Apple Watch, all you need to do is raise your arm and say “Hey Siri, set the temperature to 20 degrees”. And that is sure to impress your friends.”
– 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 –
Good to know
More information
Technical Details

- iPhone or iPad with iOS/iPadOS 14 or later
- 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
Power
2x AA Replaceable Batteries
Wireless Connection
Bluetooth Low Energy
Dimensions
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.
Eve Thermo is easy to setup:
Installation video
Quick Start Guide