The Eve Thermo is the TRV for people who refuse to let a cloud service control their heating. Thread and Matter keep everything local, and Eve's privacy record is strong. It fits standard European radiator valves and works well in Home Assistant for per-room temperature control. Premium priced, but you are paying for real local independence.
Standout: Privacy-first smart radiator valve with Thread and Matter for fully local heating control.
Notes last checked May 31, 2026.
Compatibility snapshot
Home AssistantgoodReliable local integration with minor caveats (a hub, manual config, or polling). Core function works locally.
Apple HomeexcellentFirst-class native support on this platform.
Google HomegoodWell supported, with only minor gaps.
AlexagoodWell supported, with only minor gaps.
Works offlineyes
Setupmoderate
Extra hub neededyes
Powerbattery
Local control facts
Home Assistant: matter integration, Local Push (home-assistant.io, checked Sep 10, 2026)
Why it stands out
smart radiator valve with full local control via Matter over Thread and no cloud at all
Eve's privacy-first approach means no account and no data collection
integrates into Home Assistant for room-by-room heating automations
Reasons to hesitate
designed for European-style radiator valves and not compatible with US HVAC systems
premium pricing compared to basic TRVs
Thread border router required on your network
Best for
European households with radiator heating who want local-first smart TRVs
privacy-conscious Home Assistant users building room-by-room heating control
Avoid if
you have a US-style forced air HVAC system. This is a radiator valve
you want the cheapest TRV possible. Budget Zigbee TRVs exist for less
Privacy and local-control notes
Fully local via Matter over Thread. No cloud account needed. Temperature schedules and setpoints stay on your local network. Eve collects no usage data.
Home Assistant support: supported · integration path: matter.
Buying reality check
Price notes: Premium pricing, but you get a fully local TRV with no cloud dependency. Buying multiples for a whole home adds up quickly.
