Smart Home Assistant

IKEA Liljebagge Radiator Thermostat: Matter Valve for £15

SepehrBy Sepehr· 12 October 2026· Updated 12 October 2026· 3 min read
✓ Independent — no paid placements✓ UK-tested in real homes✓ Cited sources
White cast-iron radiator with a brass valve against a pale green wall in strong sunlight

Key takeaways

  • IKEA's Liljebagge is its first smart radiator thermostat, listed in Sweden at 199 SEK, roughly £15, with no UK date announced.
  • It uses Matter over Thread, so it needs a Thread border router such as IKEA's DIRIGERA hub.
  • It takes two AA batteries sold separately and ships with six adapters for different water-radiator valves.
  • Home Assistant support is likely through its Matter integration, but no hands-on test has confirmed which entities it exposes.
  • An early Aqara Hub M3 bridging test exposed only heating mode, so full interoperability is not guaranteed.
On this page[tap to expand]

The IKEA Liljebagge radiator thermostat is IKEA's first smart radiator valve: a Matter-over-Thread device listed in Sweden at 199 SEK, roughly £15. It needs a Thread border router and works only with water-filled radiators. IKEA has not announced a UK date, so UK buyers cannot order it yet.

What has changed in IKEA's heating range?

IKEA quietly listed the Liljebagge (article number 806.220.62) on its Swedish website at the start of September 2026 at 199 SEK, which converts to around £15 (Matter Alpha; T3). It is IKEA's first thermostatic radiator valve and its first heating product to speak Matter over Thread rather than the Zigbee used by older Tradfri-era gear.

SpecLiljebagge, as listed
ProtocolMatter over Thread
Hub requirementA Thread border router (IKEA's DIRIGERA is one)
PowerTwo AA batteries, sold separately (IKEA suggests its LADDA rechargeables)
Size50 mm diameter, 83 mm long
Radiator typeWater-filled radiators only
In the boxSix valve adapters
ControlsDot-matrix display with + and − buttons
Swedish price199 SEK (about £15)

The move to Matter over Thread, rather than Zigbee, is the notable shift: it means the valve is designed to be controlled from any Matter ecosystem, not just IKEA's own app, which is what makes it interesting to Home Assistant users in the first place. It also exercises its valve every other week to resist limescale seizing, offers an anti-freeze mode, and keeps its last set temperature if the internet drops. IKEA lists Matter compatibility with Amazon, Apple, Google, Homey and Samsung.

Why does this matter for Home Assistant users?

The Liljebagge should work with Home Assistant, but that is unconfirmed: nobody has published a Home Assistant test yet. Home Assistant's Matter integration supports Matter thermostat device types, and Thread devices join through a Thread border router, so a certified Matter-over-Thread radiator valve should commission like any other Matter device (Home Assistant Matter docs).

The open question is feature depth. Early testing by Matter Alpha, bridging the valve through an Aqara Hub M3 into the IKEA Home app, exposed only the heating mode, so interoperability was incomplete. Whether Home Assistant sees setpoint, current temperature, battery level and valve position as separate entities depends on what IKEA's firmware exposes. If you run Home Assistant already, our Matter setup guide covers the commissioning steps this valve would use.

What do you need to run it?

You need a Thread border router on your network. IKEA's DIRIGERA hub qualifies (see our DIRIGERA review), as do many Apple, Google and Amazon devices, and Home Assistant's own Thread support can work alongside them. If Thread is new to you, our Thread explainer covers how border routers and meshes behave. Valves are battery powered, so they act as sleepy end devices rather than mesh routers; a border router near the radiators helps reliability.

UK availability and price

There is no UK listing or date. TechRadar reported that IKEA had been asked about UK and US availability, and as of mid-October 2026 we have found no UK product page. The £15 figure is a currency conversion from Swedish kronor, not a UK price; expect UK pricing to differ, and note that batteries are extra. Prices vary by market and retailer, so treat the figure as a guide to IKEA's positioning rather than a shopping price.

That positioning matters. Established UK smart valves typically cost several times as much per radiator, which is why a Matter valve at this level could change whole-house heating costs for renters. Compare today's options in our best smart radiator valves guide, or see which suit Home Assistant in the Home Assistant radiator valve round-up.

Should you wait for the Liljebagge?

If you already own a Thread border router and your radiators take standard valves, waiting is reasonable, because a cheap Matter valve is exactly what many Home Assistant users have wanted. If the heating is cold and you need smart control now, buy a proven valve instead. Check the open questions first: UK launch, whether it controls combi-boiler call-for-heat on its own (it does not appear to; valves only throttle radiators), and how many Home Assistant entities it exposes. We will update this piece when hands-on testing appears.

One practical caveat: IKEA includes six adapters, but UK radiators vary, so check your valve body (typically M30x1.5 or Danfoss-style) against the adapter list once a UK listing exists.

Buy the picks in this guide

Recommended for Smart Heating

See all devices →
Shop these picks on our Amazon storefront →

Frequently asked questions

What is the IKEA Liljebagge radiator thermostat?
The IKEA Liljebagge is IKEA's first smart radiator thermostat, a battery-powered valve head that replaces the manual dial on a water-filled radiator. It uses Matter over Thread, so it needs a Thread border router such as IKEA's DIRIGERA hub, and it takes two AA batteries sold separately. It ships with six adapters for different valve types and has its own display and + and − buttons, so it still works at the radiator without an app. IKEA listed it in Sweden at 199 SEK, roughly £15 at current conversion rates. The main caveat is availability: as of mid-October 2026 IKEA has not confirmed a UK launch, and it only suits water-based radiators, not electric heaters or underfloor heating.
Does the IKEA Liljebagge work with Home Assistant?
It should, but that is not yet proven. The Liljebagge is a Matter-over-Thread device, and Home Assistant's Matter integration supports thermostat device types and Thread devices via a border router, so commissioning should follow the normal Matter route. No reviewer has published a Home Assistant test yet, though, so we cannot say which entities it exposes. One early third-party test through an Aqara Hub M3 into the IKEA Home app only exposed the heating mode, which suggests interoperability may be partial. Until someone tests it with a Home Assistant Matter server, treat full support as likely rather than guaranteed, and do not buy several in advance on that assumption alone.
Can you buy the IKEA Liljebagge in the UK?
Not yet. The IKEA Liljebagge radiator thermostat has only been spotted on IKEA's Swedish website, listed at 199 SEK, and IKEA has not announced international availability or a UK date. TechRadar reported asking IKEA about UK and US availability, and we have found no UK product page since. The roughly £15 figure quoted in the press is a currency conversion, not a UK price, and batteries are sold separately. If you need smart radiator control now, established valves from Tado, Hive and others are available in UK shops today. If you can wait, watch IKEA UK's smart home range, and expect us to update this article once a listing appears.

Sources

Sources verified 2026-10-12

  1. Matter Alpha — IKEA's new LILJEBAGGE brings Matter-over-Thread to smart heating on a budget
  2. T3 — IKEA's first-ever smart radiator thermostat is cheap, easy to install and perfect for renters
  3. TechRadar — IKEA launches its first smart radiator thermostat, with Matter support and an impressively affordable price
  4. Home Assistant — Matter integration
›How we researched this

Claims in this article are checked against primary sources — manufacturer specifications, official documentation, Which? research, Ofgem guidance, or gov.uk — rather than forum threads or video reviews. Where the author has direct hands-on experience with a product (most Home Assistant, Zigbee, and home-networking gear is running in his own homelab), that is stated explicitly in the text.

For categories outside that personal setup — such as boilers, heat pumps, and other areas that are traditionally a heating engineer's domain — verdicts are built from cross-referenced manufacturer data, published lab results, and vetted expert and owner reviews rather than a claim of personal hands-on testing. See the editorial policy for the full methodology.

Sepehr

Written by

Sepehr

10+ years hands-on with Home Assistant & networking · Research-backed elsewhere · No brand deals

Smart home specialist with 10+ years running a self-hosted Home Assistant setup — Zigbee2MQTT, Frigate NVR, and local-first automations. Independent coverage for UK homes, no brand deals.

LinkedIn →

Citing this page? Please use a dofollow link back to the original article — it helps us keep the data on this page accurate and up to date.

Related reading