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tado Extension Kit

tado Extension Kit

Review this product
Quicklinx: C016WS00 Mfr#: EK01-TC-UK-03


The Extension Kit enables you to control your hot water. It is also needed to connect the tado° Smart Thermostat to your heating system if there is no room thermostat or if you have a wireless room thermostat. The Extension Kit works then as a wireless receiver for the heating system.

The Extension Kit can only be used as an additional product of the Smart Thermostat - Starter Kit (v2/v3/v3+).

What’s in the box?
tado° Extension Kit, connection cable, terminal block, Euroblock connectors, RAST 5 connectors, 2 screws for wall mounting, 2 anchors for wall mounting, labeling for cables

The tado° Extension Kit connects directly to your heating system via cable. The Smart Thermostat communicates via radio with the Extension Kit to control your heating.

For heating:
Uses the outside temperature and the location of the residents for energy-efficient heating control.

Wireless connection for heating:
The Extension Kit allows your Smart Thermostat to be wirelessly connected to your heating system.

Hot Water:
Allows you to control hot water if you have a separate water tank by replacing an existing programmer.

The Extension Kit is necessary in the following cases:
No thermostat, wireless thermostat or to replace a programmer.
The Extension Kit is needed in addition to a Smart Thermostat. The Extension Kit connects directly to the boiler via cable and communicates with the Smart Thermostat via radio. It can also be used to replace an existing programmer (standard UK backplate).

Replacing a programmer
If you have a programmer attached to your boiler to control hot water production, the Extension Kit can replace it. This way tado° controls your hot water production too. The Extension Box fits the UK standard backplate, so it's easy to attach and you can easily replace the programmer without doing any rewiring.

Self install
The Extension Kit and the Smart Thermostat - Starter Kit (v3) are easy to install yourself. Our online installation guide gives you detailed step-by-step instructions that are tailored to your home heating system.

tado° energy savings guarantee
Our promise
Not sure if tado° works for you? You can now enjoy a risk-free trial: If at any point you are not convinced, or tado° hasn’t saved enough during the first year, you may return the product and get a full refund.

• Applies to all heating products purchased after September 1 2016. The Smart AC Control, Smart Thermostat Starter Kit (v2) and the Connector kit (v1) products are excluded.
• copy of original receipt (tado° or retail partner)
• date of purchase not earlier than 12 months ago
• minimum of 6 months use
• shipment of complete and undamaged products
• it is not required to provide any additional documentation (bills etc.) regarding energy consumption. We trust you!
This guarantee is provided by tado. Any questions, please contact tado:



Product Description
tado° Extension Kit - central controller
Product Type
Central controller
Frequency Band
868 MHz
Matt white
Dimensions (WxDxH)
15 cm x 2.8 cm x 10.2 cm

Detailed Specification


Product Type
Central controller
Connectivity Technology
Frequency Band
868 MHz
4 wire connection


Form Factor


Matt white
Encryption Algorithm
256-bit SSL, TLS 1.2
Nominal Voltage
AC 120/230 V
Compliant Standards
RoHS 2011/65/EU, EMC 2004/108/EC, LVD 2014/35/EU, R&TTE Directive 1999/5/EC

Dimensions & Weight

15 cm
2.8 cm
10.2 cm
210 g
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