Heatmiser
Heatmiser neoStat-e V3
- HACS component
- Local control
- Wi-Fi
Prices verified November 2026
See more thermostats & heating picks on our Amazon storefront →Our verdict
A wall thermostat for electric underfloor heating, supplied with a 3 m floor probe and able to switch up to 16A directly. It works on its own as a programmable thermostat, but the smart part needs a separate neoHub, and retailers say it must be a second-generation hub or newer; it is not compatible with the first-generation neoHub. It is not for wet (hydronic) underfloor systems, so check what you have before buying. Price varies by seller and the retailer we checked showed it low on stock.
What can Home Assistant control on the Heatmiser neoStat-e V3?
| Control | Type | What it does |
|---|---|---|
| Thermostat | Climate | Set point and mode through the neoHub API (model support not confirmed). |
| Hub API | Setting | Legacy API or websocket token must be enabled on the neoHub before the integration can connect. |
No official integration. Home Assistant reaches it through a neoHub using the community MindrustUK Heatmiser-for-home-assistant integration from HACS, built on neohubapi, which talks to the hub's local API (legacy port 4242, or a token-based encrypted websocket on 4243 that works on second-generation hubs only). The thermostat alone, without a hub, cannot be reached from HA at all. On newer hubs the legacy API may be disabled by default and must be switched on in the Neo app under Settings > API. The maintainer describes the project as a work in progress done in spare time. Specific neoStat-e V3 support is not named on either source, so treat it as likely but unconfirmed.
Specs
| hub | optional neoHub, 2nd generation or newer required for app control - per retailer listing |
|---|---|
| mounting | flush |
| floor sensor | 3 m remote floor probe supplied; works with 10K, 12K and 15K NTC probes - per Victorian Plumbing listing |
| heating type | electric floor heating only; not suitable for wet underfloor - per retailer listings |
| max switching current | 16A - per Victorian Plumbing listing |
How does the Heatmiser neoStat-e V3 compare?
| Product | From | Protocol | Local control | Integration |
|---|---|---|---|---|
| Heatmiser neoStat-e V3 (this product) | £109.95 | Wi-Fi | Yes | HACS |
| Aqara Floor Heating Thermostat W500 | £69.98 | Matter, Thread, Zigbee | Yes | Native |
| Aqara Radiator Thermostat E1 | £54.98 | Zigbee | Yes | Zigbee2MQTT / ZHA |
| Aqara Radiator Thermostat W600 | £49.99 | Matter, Thread, Zigbee | Yes | Native |
Frequently asked questions
- Does the Heatmiser neoStat-e V3 work with Home Assistant locally?
- Yes. The Heatmiser neoStat-e V3 is controlled locally in Home Assistant through a community integration installed through HACS, so it keeps working if your internet connection or the Heatmiser cloud goes down. Control and state updates stay on your own network.
- Which protocol does the Heatmiser neoStat-e V3 use, and do I need a hub?
- The Heatmiser neoStat-e V3 uses Wi-Fi. To pair it with Home Assistant you need no hub — it joins your Wi-Fi network directly. Heatmiser's own hub is not required when you integrate through a community integration installed through HACS.
- How much does the Heatmiser neoStat-e V3 cost in the UK?
- The lowest price we have listed for the Heatmiser neoStat-e V3 is £109.95 at Victorian Plumbing. Prices were last checked in November 2026 and change often, so confirm on the retailer's page before buying.
Heatmiser
Heatmiser neoStat-e V3
£109.95 at Victorian Plumbing