tado° · tado° radiator valve adapters
tado° Radiator Valve Adapters: Will It Fit My Valves?
Updated
The commonest question with tado° radiator thermostats is whether they fit the valves already on the radiators. Most do, directly or with one of the adapters tado° puts in the box. This guide lists them, the valves that need a third-party adapter, and the ones that have to be replaced before any smart head goes on.
In short
The tado° Smart Radiator Thermostat X screws directly onto M30 × 1.5 valves. tado° includes six adapters: Danfoss RA, Danfoss RAV, Danfoss RAVL, M28 × 1.5, Caleffi and Giacomini. Vaillant 30.5 mm, Oventrop M30 × 1.0, Ista M32 × 1.0 and Orkli M28 × 1.0 valves need a third-party adapter. Manual valves, single-pipe systems and leaking or corroded valves are not suitable.
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Start the request here, then add extra photos or videos from the JACK app if the pro needs more detail.
How to tell what valve you have
A close-up photo usually answers it. Look for:
- A brand name on the old thermostatic head, or on the valve body under it
- Notches around the base of a Danfoss valve, which tado°'s Danfoss RA adapter clips over
- A plain round cap or a small handwheel and no numbers: that is a manual valve, not a thermostatic one
- Any weeping water, green or white crust, or rust around the spindle, which rules the valve out until it is fixed
Fitting tips tado° gives
tado°'s help centre adds a few points a pro follows on every valve:
- Undo only the old head's nut, never the valve fitting itself
- Push the Danfoss RA adapter on until no metal of the valve body is visible
- Fit a pin extender where tado°'s adapter guide calls for one, such as on M28, Danfoss RAV and Giacomini valves
- Never use lubricant or thread-locker: tado°'s warranty terms exclude them
tado° X radiator thermostat: valve by valve
From tado°'s help centre and adapter guide for professional installers, as checked on 31 October 2026.
| Valve | Fits how | On a JACK booking |
|---|---|---|
| M30 × 1.5 (many UK valves) | Directly | Yes |
| Danfoss RA, RAV or RAVL | Adapter in the box | Yes |
| M28 × 1.5 (Comap, Herz, Terrier, Siemens, Olymp) | Adapter in the box, pin extender if needed | Yes |
| Caleffi or Giacomini | Adapter in the box | Yes |
| Vaillant 30.5 mm, Oventrop M30 × 1.0, Ista M32 × 1.0, Orkli M28 × 1.0 | Third-party adapter | Yes, once you have the adapter |
| Manual on/off valve | Not suitable | Valve body replaced first, booked as plumbing |
| Single-pipe system, RTL valve, leaking or corroded valve | Not suitable | No |
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.
What is on your wall now decides the job. A wired thermostat swapped for a Smart Thermostat X on the same cable is the simplest. A receiver in place of a heating and hot water programmer, an old wireless thermostat and its receiver to take out of the circuit, or a home split into zones takes longer. A Smart Radiator Thermostat is simple on its own, so a house full of them is priced on the number of radiators and the valves they sit on.
Every device goes on one booking for one price: the thermostat or receiver, a Bridge X if your kit needs one, and radiator thermostats for each room. Other jobs, such as a smart doorbell, can go on the same visit. Where parking has to be paid for, it is added at cost and agreed before you book.
Prefer to pay for the pro's time? Hourly hire works too: as a guide, smart home installation is typically £45–£95 per hour.
Frequently asked questions
Do the V3+ radiator thermostats use the same adapters?
Send a photo of the valve with your V3+ order and the pro checks. The list on this page is tado°'s list for the Smart Radiator Thermostat X.
Can you replace my manual valves at the same visit?
Replacing a valve body means draining the system and refilling it, so it is a plumbing job, booked separately. Once the thermostatic valves are in, the smart heads go on.
tado° devices by type
tado° smart thermostat installation
Wired and wireless Smart Thermostat X kits, first and second generation, and V3+ thermostats.
tado° receiver and hot water installation
UK receivers that replace a programmer: combi, S-plan, Y-plan and gravity-fed hot water.
tado° radiator thermostat fitting
Smart radiator heads, X or V3+, fitted room by room with the right valve adapter.
tado° bridge, sensor and ac control setup
Bridge X placement, temperature sensors in the right spot, and Smart AC Control.
More guides
Who can install tado°?
Gas Safe engineer, electrician or DIY: who may fit each part of a tado° system, and why.
tado° X or V3+?
The two tado° lines side by side: connections, bridges, hot water, and why they don't mix.
Which tado° kit for my boiler?
Combi, system, regular, OpenTherm or eBus: the tado° kit for each, and the jobs it involves.
Where to put tado° devices
Placement for every tado° device: reading the room right and keeping the Thread signal strong.
Switching to tado°
Replacing Nest, Hive, Honeywell or Drayton controls with tado°: what comes off and what stays.
tado° installation cost
What moves the price of a tado° job, and how a fixed price is worked out before you book.
tado° in flats and rentals
Renting, leasehold and communal heating: which tado° devices work, and what to ask 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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