Drayton Wiser is the smart heating system from Schneider Electric — and it is consistently one of the best-value multi-zone heating upgrades you can buy in the UK. With no monthly subscription, genuine room-by-room control across up to 16 rooms, and a growing Home Assistant community, Wiser punches well above its price point. This review covers everything you need to decide whether it belongs in your home.
What Is the Wiser System?
Wiser is Drayton's smart heating range, now developed and marketed under the Schneider Electric brand. The system centres on a Heat Hub — a compact Wi-Fi and Zigbee bridge that connects to your boiler's existing wiring — plus wireless room thermostats and individual radiator thermostats (iTRVs) that talk to the hub over Zigbee's self-healing mesh network.
Starter kits come in single-channel (combi boiler), two-channel (hot water + heating), and three-channel (two heating zones + hot water) variants. For a full multi-zone setup, the Drayton Wiser Heat Hub + Wiser Room Thermostat Starter Kit starts at around £130–£140 on Amazon, making it one of the most affordable entry points in the market. Additional iTRVs cost around £40 each.
Compared with other options in our best smart thermostat UK roundup, Wiser consistently stands out for price-to-feature ratio — particularly for households wanting genuine multi-room control rather than just remote scheduling.
Multi-Zone Control: Up to 16 Rooms
One of Wiser's defining strengths is genuine room-by-room heating. Each Wiser iTRV (intelligent thermostatic radiator valve) creates an independent heating zone, and the system supports up to 16 rooms in a single installation. This is more than most UK homes will ever need, and it puts Wiser comfortably ahead of single-zone systems that can only control the boiler on/off.
The iTRVs are battery-powered (AA), self-calibrate on first installation, and include physical +/- buttons for manual adjustment in 2-degree increments — useful if guests want to tweak a room without unlocking their phone. Signal strength is solid in most homes thanks to Zigbee mesh, though very thick stone walls can occasionally cause dropouts; adding a Wiser smart plug (£41.99 each) extends coverage as a range extender.
For a detailed look at iTRV options across brands, see our guide to the best smart radiator valves UK.
The Wiser App
The Wiser Home app (iOS and Android) is consistently described as clean and intuitive in user reviews. From the app you can:
- Set individual room schedules and target temperatures
- Switch between Home, Away, and Holiday modes (with geolocation for automatic Away triggering)
- Use Moments to group rooms and trigger scenes with a single tap
- Access Insights+ — a heat report and hourly activity tracker that shows when each room was heated and for how long
- Control the system remotely from anywhere in the world
Eco Mode can reduce target temperatures automatically when rooms are unoccupied. The app does not require a subscription — all features are included in the hardware purchase price.
Energy Reports
The Insights+ energy reporting feature is a genuine differentiator at this price point. It gives you hourly heating activity across every zone, making it easy to spot patterns like a bedroom running all night unnecessarily or a rarely-used spare room being heated on schedule. Wiser claims the system can reduce energy consumption by up to 30% compared with a standard programmer; room-level iTRV control alone accounts for up to 19% annual savings by stopping heat being wasted in unoccupied rooms. These are manufacturer figures, and real-world savings will vary, but the direction of travel is well supported.
Voice Assistant and Smart Home Support
Wiser supports Amazon Alexa and Google Assistant out of the box via official skills, allowing hands-free voice control of room temperatures without any additional setup beyond linking your Wiser account. IFTTT support is also available for more advanced automations.
There is no Apple HomeKit support, which will be a dealbreaker for some households. If HomeKit is a priority, tado is the more suitable option.
Home Assistant Integration
For those running a local smart home server, Wiser has an excellent community integration called wiser_home, available through HACS (Home Assistant Community Store). The integration connects directly to the Heat Hub on your local network — no cloud dependency — and exposes:
- Climate entities for every room and hot water zone
- Sensor entities for temperature, humidity, battery level, and Zigbee signal strength
- Away mode control and schedule management
- Zigbee network visualisation for diagnostics
The integration requires Home Assistant 2025.5 or later and is actively maintained, with the latest release (v3.4.19) adding v2 Hub support and resolving compatibility issues with HA 2026.2. Installation is straightforward via HACS: search for Wiser in the integrations category, install, then enter your Heat Hub's IP address and secret key.
Self-Install Compatibility
Wiser is designed for DIY installation. The Heat Hub replaces your existing programmer or wiring centre, and the wiring diagrams in the app and printed guide are clear enough for anyone comfortable with basic domestic electrical work (turning off the power and connecting standard boiler wiring terminals). No Part P notification is required for replacing like-for-like heating controls in England and Wales. The iTRVs simply twist onto your existing TRV valve bodies using the included adapters, with no tools required.
Schneider Electric also offers a Wiser-certified installer network for those who prefer professional fitting.
UK Price
As of mid-2026, the Drayton Wiser starter kit is available from around £130–£140 for the single-channel (combi boiler) kit. Multi-room kits including two iTRVs start at approximately £309 direct from Drayton, though Amazon and trade merchants often offer better prices. There is no monthly fee.
Wiser vs tado vs Hive
vs tado: tado's hardware is comparable in quality and also offers multi-zone iTRV control, Apple HomeKit support, and excellent geofencing. However, many of tado's best features — including Auto-Assist geofencing and open window detection — require a subscription of around £3.99/month or £39.99/year. Wiser includes comparable features (geolocation Away mode, energy reports) with no ongoing cost.
vs Hive: Hive (British Gas) is a polished system with a strong UK support network and slick app, but its radiator thermostats cost more and its multi-zone capability is less developed than Wiser's. Hive has no subscription for basic control, but advanced features like Hive Plus do carry a fee. For multi-zone setups, Wiser typically works out cheaper to deploy across a whole house.
If budget is a priority and you want room-by-room control without subscriptions, Wiser wins on value. If you need HomeKit or prefer a more premium app experience, tado is worth the premium.
Verdict
Drayton Wiser is the best-value multi-zone smart heating system currently available in the UK. The combination of no subscription fees, genuine 16-room zone control, a capable energy reporting app, Alexa/Google support, and excellent Home Assistant integration via HACS makes it hard to beat at its price point. Self-installation is realistic for most homeowners, and the 3-year warranty adds peace of mind. If you are upgrading from a basic programmer and want meaningful room-level control, Wiser is the most cost-effective path to get there.
Related: best smart radiator valves UK, Hive vs Tado vs Nest comparison, and best smart thermostat UK.
