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Researched#6 OpenTherm boilers only

Netatmo Smart Modulating Thermostat

Smart Modulating Thermostat · RRP £199.99 when researched on 5 November 2026 (may have changed — see the shop prices below)

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Our verdict

A thermostat only for OpenTherm boilers, with weather-adaptive heating and boiler fault alerts. It is not for relay-only boilers or heat pumps.

Best for: Owners of an OpenTherm boiler who want modulating control and fault alerts.

Will it work in my home?

Combi boiler (check)System boiler (check)Regular boiler (check)Heat pumpOpenThermNeutral wire: not statedRenter-friendly

Designed only for OpenTherm modulating boilers. Hot water control is available only on OpenTherm boilers with an integrated tank (storage combi). Use Netatmo's compatibility check.

Not sure? Run the boiler checker →

Where to buy

  • Netatmo shop £199.99 · ViewIn stock · free delivery · price from manufacturer's own shop, checked 6 Nov 2026, 16:50

Prices as shown by the shop to UK consumers, normally including VAT. Prices can change. Delivery is the shop's stated standard UK charge for this item ordered on its own. Sorted by price, not commission. None of these links earn COMANORA money.

How we assessed this:researched from manufacturer documentation, installation manuals and UK pricing. Not hands-on tested. Our method

Key facts

Manufacturer's RRP (researched 5 November 2026)£199.99
SubscriptionNone
3-year cost (RRP + required subscription, researched 5 November 2026)£199.99
Powerbattery
InstallationDIY or installer
Works withGoogle Home
Boiler typeOpenTherm modulating boilers only
Hot waterStorage combi OpenTherm boilers only
Returns60 days (Netatmo shop)

Features

  • OpenTherm modulation
  • Auto-Adapt (weather and insulation)
  • Auto-care boiler fault alerts
  • Interchangeable coloured covers (design by Philippe Starck)

Pros and cons

  • Full OpenTherm modulation
  • Boiler anomaly alerts
  • No subscription mentioned
  • OpenTherm boilers only
  • Hot water control limited to storage combis
  • Only Google voice control shown on the page

Installation: what UK buyers need to know

Designed only for OpenTherm modulating boilers. Hot water control is available only on OpenTherm boilers with an integrated tank (storage combi). Use Netatmo's compatibility check. If you are not confident with the wiring, use a qualified installer. Any work on the gas side of a boiler must be done by a Gas Safe registered engineer.

Alternatives

Hive Thermostat

Combi-boiler homes that want a physical dial.

Hive Thermostat Mini

Combi-boiler homes that want a low-cost smart thermostat.

Netatmo Smart Thermostat

On/off systems and air-to-water heat pumps where OpenTherm isn't needed.

Sources