tado° · Smart thermostats
tado° Wired Smart Thermostat V3+ Installation in London
Updated
The tado° Wired Smart Thermostat V3+ is the older tado° wired thermostat, and it supports more digital boiler connections than tado° X does. tado°'s UK shop no longer lists it as a kit, but it is on many London walls. A vetted JACK pro refits, replaces or swaps it out on the existing cable for a fixed price before you book.
In short
Yes. A vetted JACK pro in London works on the tado° Wired Smart Thermostat V3+ at the wall: refitting it after decorating, swapping a faulty unit like for like on the same cable, or replacing it with a tado° X thermostat. Check first: tado° says X supports fewer modulating boilers than V3+, so a V3+ on a digital boiler connection may not have an X equivalent.
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Wired Smart Thermostat V3+: key facts
- Model
- RU02 (also a Black Edition) Source: tado° help: starter kits and model codes
- Boiler connections
- Relay plus digital buses including Vaillant eBus, HT-Bus, EMS and EMS+, BS-Bus, KM-Bus, Wolf eBus and analogue 24 V Source: tado° V3+ installer manual: Wired Smart Thermostat
- Connects through
- The V3+ Internet Bridge (IB01) at your router Source: tado° V3+ help: what each tado° device is for
- Availability
- Not listed as a kit on tado°'s UK shop on 31 October 2026 Source: tado° UK shop: all products
- Moving to X
- tado° X supports relay and OpenTherm only; V3+ and X cannot share a Home Source: tado° help: tado° X and other tado° product lines
Model details come from tado°'s UK shop, help centre and installer manuals. tado° can change a design or what comes in the box, so check your own kit and send a photo of it with your request. Last checked 31 October 2026.
How the Wired Smart Thermostat V3+ is powered and mounted
The V3+ wired thermostat could talk to many boilers digitally: Vaillant eBus, the Worcester Bosch bus and others, which let the boiler modulate its flame. tado° X only offers relay and OpenTherm. tado° says that if a V3+ wired thermostat drives a modulating boiler that does not use OpenTherm, tado° X may not be compatible.
So the first question on any V3+ job is how it is wired today. A relay connection swaps to X on the same cable. A digital bus connection means staying with V3+, or moving to on/off control with X, which means reconnecting the cable at the boiler's relay terminals; that needs a Gas Safe engineer and is not part of a JACK booking.
What the pro checks first
- How it connects today: relay, OpenTherm or a digital bus such as eBus or EMS
- The boiler label, if you are moving to tado° X
- The Internet Bridge on the router, if you are keeping V3+
What the pro does on the Wired Smart Thermostat V3+
- Existing connection identified at the wall: relay, OpenTherm or a digital bus
- For a refit or like-for-like swap: power isolated and wires returned to the same terminals
- For a move to X: only where the V3+ already switches the boiler by relay or OpenTherm, the X thermostat wired on the same cable
- Old V3+ devices removed from the app, and X set up as a new Home with your settings re-entered
Before you book: what to send
- A photo of the thermostat and, if it lifts off, the wiring behind it
- The boiler's make and model
- Whether you are keeping V3+ or moving to tado° X
How tado° installation is priced
A vetted pro prices your job from photos of the boiler, your existing controls and the tado° kit, and the JACK app shows you that fixed price before you book.
Full pricing guide for tado° installationFrequently asked questions
Will a tado° X thermostat work where my V3+ is?
If the V3+ switches the boiler by relay, or uses OpenTherm, usually yes on the same cable. If it uses a digital bus such as eBus or EMS, tado° says X may not be compatible, or may only switch the boiler on and off; moving a bus-wired V3+ to on/off control means reconnecting the cable at the boiler's relay terminals, which needs a Gas Safe engineer and is not part of a JACK booking.
Can you rewire my V3+ thermostat to a new boiler?
The work at the wall, yes. Connecting the cable to the new boiler's terminals is boiler work: tado° recommends asking the boiler engineer to wire tado° the way it was wired before, and that needs a Gas Safe engineer.
How much does tado° Wired Smart Thermostat V3+ installation cost in London?
It is a fixed price for your Wired Smart Thermostat V3+, worked out by a vetted pro from the model, a photo of where it is going and what power is there now, and shown in the JACK app before you book. Other devices can go on the same booking for one price. If you would rather pay for time, hourly hire for smart home is typically £45–£95 per hour as a guide.
Often booked together
Wireless Smart Thermostat V3+ installation
The V3+ wireless kit with hot water: UK receiver (BP02), sensor (SU02) and Internet Bridge.
Smart Radiator Thermostat V3+ installation
V3+ radiator heads (VA02), including the Basic, added to an existing V3+ system.
Wired Smart Thermostat X (2nd gen) installation
The 2nd-gen wired thermostat (RU05): swapped for your wall thermostat on the same cable.
More tado° smart thermostats
tado° smart thermostat installation
Wired and wireless Smart Thermostat X kits, first and second generation, and V3+ thermostats.
Wireless Smart Thermostat X (2nd gen) installation
The 2nd-gen wireless kit: Programmer X receiver plus Wireless Temperature Sensor X (2nd gen).
Smart Thermostat X (1st gen) installation
The original tado° X thermostats, wired (RU04) and wireless kit (PR04 + SU04), still on sale.
All tado° installation guides
tado° Smart Thermostat X, Wireless Receiver X and radiator thermostats fitted in London by vetted pros who work at the wall, not the boiler. Fixed price first.
Related services in London
Sources
The device facts and rules on this page come from these pages, checked on 31 October 2026.
Jack All Trades (JACK) is an independent London service. It is not part of, affiliated with or endorsed by tado GmbH. tado° product names are used only to describe the devices JACK pros install, and prices are set by JACK pros, not by tado°. JACK pros do not work inside boilers or claim Gas Safe registration.
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Send photos of your boiler, your current controls and your tado° kit in the JACK app, see a fixed price from a vetted local pro, and pick a time that suits you.
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