Best Eq 3 Thermostat 2026

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Last Updated - 27.03.2026

Best Choice

01

eQ-3

Set of 4 N Radiator Thermostat with Boost Function

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9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Supply Voltage: 3 V Max. Power consumption 100 mA batteries 2 Mignon/LR6/AA battery service life of approx. 3 years (3 cycles) display LCD Dimensions (W x H x D) 58 x 71.5 x 90 mm (with connection flange) thread connection M30 x 1.5 (e.g. Heimeier) case colour: white (similar to RAL 9016) Weight 126,5 g

119,95 €
02

eqiva

eqiva Model N Electronic Radiator Thermostat with Boost Function Set of 3

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Universally applicable, suitable for all standard valve types/manufacturers with M30 x 1.5 thread
Time-controlled regulation of the room temperature
Heating/lowering times can be individually programmed via weekly program (3 heating phases/7 switching times per day programmable)
Easy to install: no water drainage, no intervention in the heating system, no special tools required
Boost function for quick heating - the radiator immediately releases heat for a few minutes, then regular further heating

63,14 €
Value for Money

03

eqiva

Eqiva Bluetooth Smart Radiator Thermostat

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33% Off
9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Test winner at Stiftung Warentest: award with top grade in January 2017: The BLUETOOTH Smart Radiator Thermostat convinced in the test with reliable heat regulation, easy handling and especially long battery life
Radiator thermostat with Bluetooth Smart (from version 4.0) for needs-based regulation of the room temperature
Please refer to the product dimensions as well as the manufacturer's instructions for compatible heater models
How to activate Bluetooth: The Bluetooth function of the radiator thermostat can be manually activated or deactivated; press the mode/menu button for at least 3 seconds; select the menu item "bLE" with the control wheel and confirm by briefly pressing the control wheel; "OFF" appears on the display to disable the function or "On" to activate the function; confirm short press by short press of the control wheel
Free app "calor BT" for iOS and Android (iOS 8.2 or later; Android 4.4 or higher)
Configuration of the weekly program allows you to enter any temperature gradients with up to 7 switching times per day
ATTENTION: To successfully complete a firmware update, the device must be within the Bluetooth reception range (10 m). Keep the app active and touch the touch screen from time to time. To avoid irreversible damage, the display must not switch to standby mode

19,95 € 29,95 €(33% Off off)
04

eqiva

Eqiva Set Model L Electronic Radiator Thermostat with Boost Function White (Set of 4)

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9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Without interference with the heating system
Ready for immediate use thanks to preset programming
Radiator thermostat for timed regulation of room temperature
No special tools required
Easy installation without draining water

54,95 €
05

eqiva

Eqiva Radiator Thermostat Model N, 132231K2

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8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Universally applicable, suitable for the most common valve manufacturers
Timeless, simple housing, compact design and particularly quiet gearbox
The radiator thermostat is easy to install and does not require heating water drain or intervention in the heating system. No special tools are required, nor does the heater need to be switched off. The union nut attached to the radiator thermostat is universal and can be used without accessories for valves of the most common manufacturers with a thread size of M30 x 1.5 mm.
Ready for immediate use thanks to preset programming
Radiator thermostat for timed regulation of room temperature
Easy to use thanks to the slanted arrangement of the control and display elements, even under unfavourable installation conditions
Easy installation without draining water, without intervention in the heating system, no special tools required
Comfortable and precise adjustment of the target temperature (accurate to 0.5 °C), directly and intuitively on the rotary wheel

19,95 €
06

eqiva

Eqiva Radiator Thermostat Model N, 132231K2

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8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Universally applicable, suitable for the most common valve manufacturers
Timeless, simple housing, compact design and particularly quiet gearbox
The radiator thermostat is easy to install and does not require heating water drain or intervention in the heating system. No special tools are required, nor does the heater need to be switched off. The union nut attached to the radiator thermostat is universal and can be used without accessories for valves of the most common manufacturers with a thread size of M30 x 1.5 mm.
Ready for immediate use thanks to preset programming
Radiator thermostat for timed regulation of room temperature
Easy to use thanks to the slanted arrangement of the control and display elements, even under unfavourable installation conditions
Easy installation without draining water, without intervention in the heating system, no special tools required
Comfortable and precise adjustment of the target temperature (accurate to 0.5 °C), directly and intuitively on the rotary wheel

18,99 €
07

eqiva

Eqiva Bluetooth Smart Radiator Thermostat

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20% Off
8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Without interference with the heating system
Ready for immediate use thanks to preset programming
Radiator thermostat for timed regulation of room temperature
No special tools required
Easy installation without draining water

19,99 € 24,95 €(20% Off off)
08

eqiva

Eqiva Bluetooth Smart Electronic Radiator Thermostat with App Control (Set of 3)

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15% Off
8.4

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Up to 5 radiator thermostats per room can be combined via app, max. 10 rooms
Saves up to 30% on heating costs
Manual temperature setting possible at any time directly on the thermostat
Intuitive operation/programming via free app for iOS/Android "calor BT"
Identical to eQ-3 Bluetooth Smart Thermostat – winner of Stiftung Warentest edition 01/2017
Holiday and party function: keep a set temperature for a certain period of time (i.e. with a set end time), the programmed switching cycles are overcontrolled; after the time has elapsed, the programmed switching cycles automatically apply again
Fully individual, needs-based heating and lowering periods adjustable, any temperature gradients and programmable up to 7 switching times per day
Electronic radiator thermostat with weekly programme
Easy to install without draining water and without special tools

50,36 € 59,25 €(15% Off off)
09

Homematic IP

Homematic IP Smart Home Wall Thermostat with Humidity Sensor, Digital Thermostat for Radiator/Underfloor Heating with App, Temperature Measurement, Energy Saving, 156669A0

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8.3

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Operation requires connection to one of the following solutions: Homematic IP Access Point with free smartphone app and toll free cloud service; Central CCU3 with local interface WebUI (no longer compatible with the CCU2 headquarter); third-party partner solutions.
Measures target and actual temperature as well as humidity. Time-controlled regulation of the room temperature via Homematic IP radiator thermostats, underfloor heating actuators or switching sockets.
Has an illuminated display and can be placed freely in the room thanks to the radio communication
Easy integration into existing switch series from leading manufacturers: Berker, Gira, Merten, Jung and Elso
Convenient installation via double-sided tape, with screws and dowels or directly on a flush-mounted box possible
Comfortable voice control with Alexa, e.g. via Echo in conjunction with the Homematic IP Access Point.

46,00 €
10

Homematic IP

Homematic IP Smart Home Radiator Thermostat – Basic, Digital, for Heater, Control via App, Alexa, Google Assistant, Easy Installation, Energy Savings, 153412A3

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8.1

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

With the basic radiator thermostat, you can save up to 33% on heating costs– thanks to individual temperature schedules with up to 13 changes per day across three adjustable heating profiles and in combination with open-window detection using a window and door contact.
The setup and control of the thermostat via the free smartphone app and the free cloud service requires connection to the Homematic IP Access Point. This product is no longer compatible with the CCU2 central unit.
Stand-alone operation (push-to-pair) allows direct pairing of up to eight Homematic IP window and door contacts (HmIP-SWDM) and direct control on the device.
Replaces conventional radiator thermostats in just a few simple steps– no intervention in the heating system or draining of water is required.
Ready for immediate use thanks to preset heating profile, which can be manually adjusted if required (individual temperature gradients with up to 13 changes per day).

29,95 €