- Smart thermostats and heating controls at a glance
- Ten thermostat makers and what they're built for
- Baseboards, mini-splits, radiators or a furnace?
- Tiers, sensors and simple models
- Kits, engineers and the smart home you've got
- Questions to ask before you swap your thermostat
- My advice for choosing a smart thermostat
- Frequently asked questions
The best smart thermostat is the one built for the system you've got. Some makers on this list build for central heating and cooling, some for electric baseboard heaters or mini-split heat pumps, and some UK makers control radiators, boilers and underfloor heating room by room. Check what you heat or cool first, then compare apps, sensors and smart home support.
Thermostat round-ups love to argue about screens and apps. That skips the one question that decides whether a smart thermostat will even work in your home: what's it controlling?
This list sticks to what each maker's own website says, read on 1 Nov 2026 (as of Nov 2026). It's alphabetical and in no particular order, with makers for UK and North American homes side by side. I've left out every energy-saving claim and sale banner, and kept to what each page says its products control.
Smart thermostats and heating controls at a glance
| Tool | Type | Good for |
|---|---|---|
| Cielo | Smart thermostats for mini-splits and central HVAC | Mini-splits, heat pumps and central systems |
| Ecobee | Wi-Fi smart thermostats in three tiers | Premium, Enhanced or Essential models |
| Heatmiser | UK room thermostats and underfloor heating controls | Underfloor heating, radiators and hot water |
| Hive | UK smart heating range | Installation by a British Gas engineer |
| Honeywell Home | Thermostats from non-programmable to smart Wi-Fi | Simple and smart models in one range |
| Mysa | Smart thermostats for baseboards, mini-splits and in-floor heating | Electric baseboard heaters |
| Nest | Google's smart thermostats | Two thermostats on Google's store |
| Sensi | Smart thermostats manufactured by Copeland | Room and outdoor sensors |
| tado° | Smart heating control for radiators, boilers, underfloor heating and AC | Room-by-room radiator control |
| Wiser (Drayton) | UK smart heating kits from Drayton | One-room kits or multi-room kits |
Ten thermostat makers and what they're built for
Cielo
Best for: Running a mini-split, heat pump, furnace or boiler from one app, with geofencing the maker says adjusts your settings when you enter or leave an area.
Ecobee
Best for: Picking a tier: Premium, which the maker calls its most advanced, with a SmartSensor and air quality monitor, Enhanced, which adjusts as you come and go, or Essential.
Heatmiser
Best for: Underfloor heating, radiators and hot water, from a neo range the maker offers in wired, wireless and RF options, with support for Alexa, Google Home, IFTTT and HomeKit.
Hive
Best for: Booking an expert installation by a British Gas engineer, from a UK range whose page gives turning down the radiators when you open a window as an example.
Honeywell Home
Best for: A range that runs from simple non-programmable units to smart Wi-Fi thermostats, with the smart models connecting to your phone or a voice assistant for remote control.
Mysa
Best for: Electric baseboard heaters, mini-split heat pumps, electric in-floor heating or central heating and cooling, with remote control, energy reports, scheduling and geofencing in one app.
Nest
Best for: Two thermostats on Google's store page, the Learning Thermostat (4th gen) and a standard model, with Matter and the Google Home app also on the page.
Sensi
Best for: Pairing room sensors, outdoor sensors and an equipment interface module with the Touch 2 thermostat, which the maker says is manufactured by the experts at Copeland.
tado°
Best for: Setting individual temperatures and schedules for each room with radiator thermostats, with versions its menu lists for boilers, underfloor heating, air conditioners and heat pumps.
Wiser (Drayton)
Best for: Starting with a Smart Thermostat Kit for basic heating control, or going multi-room, from a UK system the maker says works with Matter.
Baseboards, mini-splits, radiators or a furnace?
Here's the split you won't spot in a line-up of screens: what you heat or cool decides which makers apply at all. Mysa lists thermostats 'for electric baseboard heaters' and 'for mini-split heat pumps'. Cielo builds 'smart thermostats for mini-split & central HVAC systems', and its mini-split range also names window and portable air conditioners. tado° lets you 'set individual temperatures and schedules for each room' with radiator thermostats, and Heatmiser's neo range comes in 'wired, wireless and RF options' for underfloor heating, radiators and hot water.
So before you compare a single feature, find your system in this list and shortlist only the makers that name it.
- Central heating and cooling: furnaces, boilers and central HVAC, which several makers here cover.
- Electric baseboards: one maker here names a model built for electric baseboard heaters.
- Mini-splits and heat pumps: two makers name mini-split models, and others list heat pumps.
- Radiators, boilers and underfloor heating: the UK makers here, some with room-by-room radiator control.
Tiers, sensors and simple models
Once you know which makers fit, look at how each one splits its range. Ecobee sells three tiers, and its page sums them up in a line each: 'Premium, our most advanced, has a SmartSensor and air quality monitor. Enhanced adjusts as you come and go. Essential makes scheduling simple.'
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Honeywell Home's models 'range from simple non-programmable units to advanced smart thermostats', so it's one to look at if you want a plain upgrade rather than a gadget. Sensi lets you 'pair Room Sensors, Outdoor Sensors and the Equipment Interface Module to the Touch 2 Thermostat', which is worth knowing if you want readings from more than one room.
Kits, engineers and the smart home you've got
In the UK, a few makers sell heating control as a kit or a booked job. Wiser (Drayton) suggests you 'start with a Smart Thermostat Kit for basic smart heating control, or go Multi-room'. Hive offers to 'book an expert installation by a British Gas engineer'. If you'd rather fit it yourself, read the maker's own installation and compatibility pages first.
On the US side, the Nest Learning Thermostat (4th gen) sits on a Google store page that also mentions Matter and the Google Home app. Matter comes up on a UK maker's page here too, so if you already run a smart home, check which system each maker names before you choose.
Questions to ask before you swap your thermostat
- What am I heating or cooling: a furnace, electric baseboards, a mini-split, radiators or underfloor heating?
- Does the maker name my system on its own page or compatibility checker?
- Do I want one thermostat for the house, or control room by room?
- Will I fit it myself, or book an installer?
- Which smart home system do I use, and does the maker name it?
- Do I want extra sensors for rooms that run hot or cold?
Do you make a smart thermostat? Tool makers can ask to be considered for a featured place on this list.
My advice for choosing a smart thermostat
Start with your heating, not the gadget. Write down what you've got, whether that's a furnace, electric baseboards, a mini-split, radiators or underfloor heating, and shortlist only the makers whose pages name it. Then compare the app, the sensors and the smart home support each one lists, and treat any savings line on a banner as the maker's own marketing.
If you're getting the house ready for colder weather, my autumn checklist for winterizing your home covers the rest of the jobs. And if you're planning bigger changes, here's my take on home improvements that add value.
Want your tool on this list? Featured spots and reviews here are paid partnerships. Here's how to partner with me.
Frequently asked questions
Will any smart thermostat work with my heating?
Not necessarily. The makers on this list build for different systems: some name electric baseboard heaters or mini-split heat pumps, some central heating and cooling, and some UK makers radiators, boilers and underfloor heating. Check that the maker names your system before you buy.
Which smart thermostats work with electric baseboard heaters?
On this list, one maker names thermostats for electric baseboard heaters, with remote control, energy reports, scheduling and geofencing listed for them. Check the maker's own page for your heater type.
Can I control the heating in each room separately?
Some makers say so. One UK maker lets you set individual temperatures and schedules for each room with radiator thermostats, and another sells multi-room kits. A US maker sells room sensors to pair with its thermostat.
Can a smart thermostat control a mini-split?
Two makers on this list name mini-split models. One lists thermostats for mini-split heat pumps, and one builds thermostats for mini-split and central HVAC systems, with window and portable air conditioners named too.
Do smart thermostats need an installer?
It depends on the maker and your system. One maker says its range covers DIY fans as well as people buying for a pro to install, and a UK maker offers installation by a British Gas engineer. If you're unsure about wiring, ask an installer.
Do these thermostats work with Alexa, Google Home or HomeKit?
Some say which systems they support. One UK maker says its neo thermostats support Alexa, Google Home, IFTTT and HomeKit, and three other pages here mention Matter. Check the maker's own list for your system.
