Live nowPrime Day 2026October 6 to 7, 2026Starts in12d17h21m40sSee the deals
Eve Thermostat

Eve Thermostat

A cloud-free wall thermostat for hydronic underfloor heating, with silent Triac switching, relay outputs and Matter support across Apple Home, Google Home, Alexa, SmartThings and Home Assistant.

€100.80
As an Amazon Associate I earn from qualifying purchases
Launch Year: 2026

Model: 20ECT1701

See the 10 best selling thermostats
Open selection
Price alerts

Thermostat price drops, every week

We check the price of every Thermostat in the catalog daily, and email you the drops.

Smart home deals and news, straight to your inbox

Price drops, new releases and the smart home news worth knowing.

No spam. Unsubscribe in one click.

Your subscription could not be saved. Please try again.
Please enter a valid email address.
Your subscription has been successful.
Our review

Eve Thermostat Review: Matter-over-Thread Control for Water-Based Underfloor Heating

The verdict

The Eve Thermostat is a wall thermostat built specifically for water-based underfloor heating driven by low-power 230 V electrothermal actuators. It switches them silently through a Triac output, can also drive pumps or motorised actuators through potential-free relay outputs, and joins a smart home over Matter and Thread with no cloud account and no subscription. It is the natural pick for European hydronic underfloor heating, but it needs a Matter controller and a Thread border router for its smart features and it does not work with electric heating mats or standard forced-air HVAC.

Best for
  • Water-based underfloor heating
  • Apple Home and Matter households
  • Privacy-focused buyers
  • No-subscription seekers

Pros

  • Purpose-built for water-based 230 V underfloor heating
  • Silent Triac switching, with potential-free relay outputs for pumps and motorised actuators
  • Matter over Thread with no vendor cloud, no account and no subscription
  • Works with Apple Home, Google Home, Amazon Alexa, Samsung SmartThings and Home Assistant
  • Dimmable LED display with touch controls and automatic ambient-light adjustment
  • Schedules stored on the device keep running without a phone or internet connection

Cons

  • Only supports water-based 230 V underfloor heating, not electric mats or forced-air HVAC
  • Requires a Matter controller and Thread border router for the smart features
  • No Wi-Fi and no support for external temperature sensors
  • Weight, screen size and screen resolution are not published by the manufacturer
  • On-device schedules are currently unavailable on Amazon Alexa and Samsung SmartThings

Who is the Eve Thermostat for?

The Eve Thermostat is aimed at homes heated by water-based underfloor heating, where a wall unit opens and closes the electrothermal 230 V actuators in the manifold. It is a fit for European new builds and renovations that already have, or plan to add, a Matter controller with Thread border router, such as an Apple TV, HomePod or a recent Nest Hub. Households that want heating control without a vendor cloud, an account or a recurring fee are the core audience, and it pairs naturally with the rest of Eve's Thread line for range.

What the Eve Thermostat offers

The standout hardware choice is the silent Triac output, which switches the underfloor heating without the clicking of a mechanical relay, so it can sit in a bedroom. For systems that need it, potential-free relay outputs (NO, NC and COM) can drive higher loads such as pumps or motorised actuators. Communication is Matter over Thread, and the manufacturer lists Google Home, Amazon Alexa, Apple Home, Samsung SmartThings and Home Assistant as supported platforms. Everything runs locally with no Eve cloud and no subscription, schedules are stored on the device, and the dimmable LED display has touch controls plus automatic ambient-light adjustment. A full Thread Device in a mains-powered device also reinforces the Thread mesh rather than only joining it.

What to know before you buy

This is a purpose-built hydronic controller: it supports only water-based 230 V underfloor heating switched through a Triac element or a classic relay, so electric heating mats and forced-air HVAC systems are out of scope. The smart features depend on a Matter controller with Thread border router; without one, only local on-device control remains. There is no Wi-Fi and, per the manufacturer, no external temperature sensor support, so the reading comes from the integrated sensor. On-device schedules are currently not supported on Amazon Alexa or Samsung SmartThings, where the platform apps handle time-based automations instead. The manufacturer does not publish the weight, the screen size or the screen resolution.

Is the Eve Thermostat worth it?

For a house with water-based underfloor heating, the Eve Thermostat fills a gap that few Matter products address: an in-wall controller for the manifold rather than a radiator valve. Its value comes from being purpose-built, silent, fully local and subscription-free, while still working across the major ecosystems over Matter. The trade-off is that it is not a general-purpose thermostat: it will not control electric mats, boilers or heat pumps, and it needs a Thread border router to be more than a local wall unit. If those conditions match the home, it is a strong match; if not, a different thermostat is the right choice.

Frequently asked questions

What kind of heating does the Eve Thermostat control?

It is designed for water-based underfloor heating with low-power 230 V electrothermal actuators, switched by default through a Triac output. Potential-free relay outputs can also drive pumps or motorised actuators.

Does the Eve Thermostat need a hub?

Basic control works on the device itself. For app, voice and automation features it needs a Matter controller with Thread border router functionality, such as an Apple TV, a HomePod or a compatible Nest Hub.

Does it work with Apple Home, Alexa and Google Home?

Yes. It is a Matter device, and Eve lists Google Home, Amazon Alexa, Apple Home, Samsung SmartThings and Home Assistant among the supported platforms.

Is there a subscription or a cloud account?

No. The thermostat runs entirely locally, has no Eve cloud and needs no registration, and all features are available without a subscription.

Can the Eve Thermostat control a boiler or a heat pump?

No. Only water-based 230 V underfloor heating systems switched via a Triac element or a classic relay are supported.

What is included in the box?

The Eve Thermostat, a wall mounting plate, mounting screws and a quick start guide.

At a glance

Summary

Everything this thermostat supports, grouped by category.

Size & Materials
3.7 × 3.7 × 0.8 in (95 × 95 × 20 mm)
Connectivity
BluetoothThread Protocol (Thread Border Router required)
Integrations
Google HomeAlexaApple HomeKitSamsung SmartThingsHome AssistantMatter
Display
LEDTouch Screen
Sensors
TemperatureAmbient Light
Scheduling
ManuallyAutomatically
Features
Energy SavingsDisplay TemperatureVoice Control

Price History

Loading price history...

Price alerts

Waiting for a better price?

We check this price every day and email you when it drops, along with the rest of the week's deals.

Company
Eve logo

Eve

4.1/ 5 avg ratingGermany flagHeadquartered in Germany

Eve makes premium smart home accessories built around Apple HomeKit, Matter and Thread, including energy monitors, smart plugs, sensors and window blinds. The brand is known for its privacy-first, no-account design with local control and no required cloud. Eve products are a favorite among Apple Home users who want Thread-based reliability.

Full specifications

Every spec, organized

Browse the full breakdown by category. Tap the on any row for what it means, or the for sources and documentation.

Size & Materials
Dimensions

3.7 × 3.7 × 0.8 in (95 × 95 × 20 mm)

Weight

?

Available in colors

NO

Included accessories
Trim Plate

NO

Temperature Sensor

NO

Connectivity
2.4 GHz WiFi

NO

5 GHz WiFi

NO

Bluetooth

YES

Z-Wave

NO

Zigbee

NO

Thread Protocol

Thread Border Router required

Integrations
Google Home

YES

Eve lists Google Home among the supported platforms over Matter.

Alexa

YES

Eve lists Amazon Alexa among the supported platforms over Matter.

Apple HomeKit

YES

Via Matter. Apple Home is a certified Matter controller with a HomePod or Apple TV as hub.

Samsung SmartThings

YES

Via Matter.

Home Assistant

YES

Via Matter. Home Assistant is a certified Matter controller.

Matter

YES

Matter over Thread device according to the manufacturer.

External Temperature Sensors

NO

Display
Screen

YES

Screen Type

LED

Color Screen

NO

Touch Screen

YES

Screen Size

?

Screen Resolution

?

Sensors
Proximity / Motion

NO

Occupancy

NO

Temperature

YES

Humidity

NO

TVOC

NO

CO₂

NO

Ambient Light

YES

Alerts
Temperature Alerts

NO

Air Quality Alerts

NO

Fire Alerts

NO

Intrude Alerts

NO

Scheduling
Manually

YES

Automatically

YES

Suggestions

NO

Features
External Temperature Sensors Selection

NO

Energy Savings

YES

System Health Monitor

NO

Display Time

NO

Display Temperature

YES

Display Weather

NO

Voice Control

YES

Speaker

NO

Required to work

You need a Thread border router for this

View all
Why it needs a Thread coordinator

The Eve Thermostat speaks Thread, which needs a border router on your network to reach your phone and your automations. These are the border routers in our catalog that can run it.

On sale now

13 other Thermostats on sale

View all
Full comparison table

Compare the Eve Thermostat with the other 20 Thermostats

All Thermostats in the catalog in one table: filter by what you need, sort by price or rating, and see exactly where this one lands.

  • 20 other Thermostats
  • 51 specs compared
  • 47 filters
Open the full comparison
Head to head

Eve Thermostat vs the competition

View all
Eve

More from Eve

View all