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Best smart radiator valves in the UK

By COMANORA· Updated 5 November 2026· What changedResearched

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Quick picks

How we assessed this:we compared 6 products available in the UK on the criteria below, using the manufacturers' own product pages. Prices were checked at official shops and UK retailers. Documentary research, not hands-on testing. Our method
6 of 6 match
#1 No subscription
Wiser by Drayton Radiator Thermostat (2nd Generation)Room control in a Wiser system without any subscription.
Combi boilerHeat pump (check)OpenTherm
£59.99Wiser by Drayton shop£202.79 with required Wiser 2nd Generation HubRView
#2 Best for Hive homes
Hive Radiator ValvesHomes already using Hive.
Combi boilerHeat pump (check)OpenTherm
£59Hive shop£139 with required Hive HubView
#3 Rechargeable
tado° Smart Radiator Thermostat XAdding room-by-room control to a tado° X system.
Combi boilerHeat pump (check)OpenTherm
£59.99tado° shop£119.98 with required tado° Bridge XView
#4 For Netatmo systems
Netatmo Additional Smart Radiator ValveAdding room control to an existing Netatmo system.
Combi boilerHeat pump (check)OpenTherm
£79.99Netatmo shopView
#5 Best value multi-pack
Wiser by Drayton Radiator Thermostat 3 Pack (2nd Generation)Adding room control to several rooms in a Wiser home.
Combi boilerHeat pump (check)OpenTherm
£167.99Wiser by Drayton shopView
#6 Room sensor (tado° X)
tado° Wireless Temperature Sensor X (2nd gen)Rooms where the radiator thermostat reads warmer than the room.
Combi boilerHeat pump (check)OpenTherm
£89.99tado° shopView

1. Wiser by Drayton Radiator Thermostat (2nd Generation) — no subscription

A subscription-free radiator thermostat with long stated battery life and a 3-year warranty, for Wiser systems.

Pros
  • No subscription
  • 3-year warranty
  • Rechargeable Ni-MH batteries supported
  • Open-window detection built in
Cons
  • Needs a Wiser 2nd Generation HubR
  • No Apple Home support listed

Full details, compatibility and prices →

2. Hive Radiator Valves — best for hive homes

A widely compatible valve for Hive homes with good adapter coverage. It needs a Hive Hub, and works best with Hive's own thermostat.

Pros
  • Three adapters included, more free from Hive
  • Works with or without a Hive thermostat
  • Lower price than tado° X per valve
Cons
  • Requires a Hive Hub (not the original Hub 1)
  • Calling for heat needs Hive Active Heating
  • Open-window detection needs extra sensors

Full details, compatibility and prices →

3. tado° Smart Radiator Thermostat X — rechargeable

A rechargeable smart radiator thermostat that needs a Thread border router. It is the most expensive valve we list, but no disposable batteries are needed.

Pros
  • Rechargeable battery — no disposable batteries
  • Wide adapter set included
  • Works with Apple Home, Alexa, Google and Matter
Cons
  • Needs a Bridge X or other Thread Border Router
  • USB-C cable not included
  • Highest price per valve in our list

Full details, compatibility and prices →

4. Netatmo Additional Smart Radiator Valve — for netatmo systems

An add-on radiator valve for Netatmo systems. It needs a Netatmo thermostat or the starter pack, and costs more per valve than Hive or Wiser.

Pros
  • Fits most hot water radiators (Netatmo)
  • Multi-packs reduce the per-valve price
Cons
  • Needs a Netatmo thermostat or starter pack
  • Highest single-valve price in our list

Full details, compatibility and prices →

5. Wiser by Drayton Radiator Thermostat 3 Pack (2nd Generation) — best value multi-pack

The multi-pack of Wiser's subscription-free radiator thermostat, about £56 per valve against £59.99 bought singly.

Pros
  • Lower price per valve than buying singly
  • No subscription
  • 3-year warranty
Cons
  • Needs a Wiser 2nd Generation HubR
  • No Apple Home support listed

Full details, compatibility and prices →

6. tado° Wireless Temperature Sensor X (2nd gen) — room sensor (tado° x)

A room sensor for tado° X radiator control, so radiators heat to the temperature where you actually sit rather than at the radiator.

Pros
  • Measures room temperature away from the radiator
  • Rechargeable battery
  • Shows temperature and humidity
Cons
  • Only useful with tado° Smart Radiator Thermostats X
  • Stand costs extra

Full details, compatibility and prices →

How we chose

CriterionWeight
Fit with common UK valve bodies35%
Total cost including the hub you need30%
Features and battery20%
Warranty15%

Commission is not a criterion. Rankings are fixed before affiliate links are added.

What changed

  • 5 November 2026 — Added Netatmo Additional Smart Radiator Valve; Hive Hub price added.
  • 5 November 2026 — Replaced example products with three UK radiator thermostats.