Radiator Thermostat Comparison · UK 2026
Kasa KE100 vs Kasa KE110

Specs, pros and cons compared side by side

Both the Kasa KE100 and the Kasa KE110 are smart radiator heating controls. This head-to-head sets them side by side using the specs, pros and cons from our full reviews. Kasa specs come from Tapo and TP-Link’s own pages.

Quick verdict

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Kasa KE100

Pick it for: Fits M30 x 1.5 radiator valves with RA, RAV and RAVL adapters (the KE110: a room thermostat, not a valve)

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Kasa KE110

Pick it for: Measures the room temperature itself (the KE100: a valve, whose reading a Tapo sensor can correct) · Matter through the Kasa Hub (the KE100: Alexa and Google)

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Quick comparison

Spec Kasa KE100 Kasa KE110
Connection Sub-GHz to the KH100 hub Sub-GHz to the KH100 hub
Hub or bridge needed Kasa Hub KH100 Kasa Hub KH100
Power 2x AA alkaline 2x AAA
Valve fit M30 x 1.5; RA, RAV, RAVL adapters Not applicable (room thermostat)
Smart home Alexa, Google Alexa, Google; Matter via the hub
Kasa KE100

Pros

  • Works offline once set up
  • Adapters included
  • Open-window detection with a T110
  • Tapo sensors can correct the temperature

Cons

  • Needs the KH100 hub (sold in the KIT)
  • Uses the Kasa app, not Tapo
  • Tapo does not say it controls a boiler
Kasa KE110

Pros

  • Reads the room, not just the radiator
  • Clear E-ink display
  • Works with existing KE100 valves
  • Matter through the hub

Cons

  • Only controls Kasa valves
  • Not stated to control a boiler
  • Needs the KH100 hub

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Which should you buy?

Why choose the Kasa KE100

  • Fits M30 x 1.5 radiator valves with RA, RAV and RAVL adapters (the KE110: a room thermostat, not a valve)
Why choose the Kasa KE110

  • Measures the room temperature itself (the KE100: a valve, whose reading a Tapo sensor can correct)
  • Matter through the Kasa Hub (the KE100: Alexa and Google)

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