A smart thermostat for baseboard heaters has a different job from the Nest or ecobee on a hallway wall. Electric baseboards run on line voltage (120V or 240V), and the thermostat switches that full current to the heater itself. Nest, ecobee and most other smart thermostats are built for 24V central systems, so they can’t be wired to a baseboard at all. What you need is a line voltage smart thermostat: the same kind of wall control you have now, with Wi-Fi, an app, schedules and voice control added.
There aren’t many of them, and the four below are the ones worth buying in the US right now. Before you order, open up your current thermostat (with the breaker off) and count the wires. Every option here needs four wires in the box, and none of them works on a two-wire setup. Prices below are regular list prices, not temporary deals.
Quick Recommendations
- Mysa V2 — Best overall. A touchscreen, energy charts and a humidity sensor, with Apple Home, Alexa and Google support.
- Mysa LITE — Best value. The same wiring and smart home support as the V2 for about $60 less, with buttons instead of a touchscreen.
- Meross Matter Smart Thermostat (MTS215) — Best for Matter. One setup code adds it to Apple Home, Alexa, Google Home and SmartThings.
- Meross MTS200 — Best budget. Apple Home, Alexa, Google and SmartThings support with energy monitoring for about $60.
Baseboard Thermostats at a Glance
| Product | Ecosystem | Key Feature | Approx. Price | Best For |
|---|---|---|---|---|
| Mysa V2 | Apple Home, Alexa, Google | Touchscreen, energy charts, humidity sensor | ~$159 | Most homes |
| Mysa LITE | Apple Home, Alexa, Google | Core Mysa features, physical buttons | ~$99 | Several rooms on a budget |
| Meross Matter Smart Thermostat (MTS215) | Matter (Apple Home, Alexa, Google, SmartThings) | Matter certified, energy monitoring | ~$80 | Matter homes |
| Meross MTS200 | Apple Home, Alexa, Google, SmartThings | Lowest price with energy monitoring | ~$60 | Tight budgets |
Compatibility Matrix
All four connect straight to your Wi-Fi with no hub and work with their own free app. Values come from each manufacturer’s own documentation.
| Product | HomeKit | Alexa | Google Home | Matter | SmartThings | Hub Required | Wiring/Power |
|---|---|---|---|---|---|---|---|
| Mysa V2 | Yes | Yes | Yes | No | Not stated | No | 120-240V, 4 wires |
| Mysa LITE | Yes | Yes | Yes | No | Not stated | No | 120-240V, 4 wires |
| Meross Matter Smart Thermostat (MTS215) | Via Matter | Via Matter | Via Matter | Yes (Wi-Fi) | Via Matter | No | 120-240V, 4 wires |
| Meross MTS200 | Yes | Yes | Yes | No | Yes | No | 120-240V, 4 wires |
All four work in Apple Home, so the real split is Matter. Only the Meross MTS215 supports it. And because every option here needs four wires and a 2.4 GHz Wi-Fi network, check both before you choose on features.
The 4 Best Smart Thermostats for Baseboard Heaters
Mysa V2 — Best Overall
The Mysa V2 is the most complete smart thermostat for electric baseboard heat you can buy in the US. It adds real energy tracking and a humidity sensor to the scheduling and voice control every option here offers.
Best for: most homes with baseboard heat, especially if you want to see which rooms use the most electricity.
What stands out in real use
The energy charts. Baseboard heat is expensive to run, and the Mysa app shows how much each thermostat is using, so you can see which room is costing you and change that schedule first. The V2 also has an Early On feature that starts heating ahead of a scheduled change so the room is already warm at the time you set, plus zones, saved schedules and smart alerts. The glass touchscreen dims when nobody is near it and brightens as you walk up. Mysa doesn’t charge a subscription for any of this.
Key specs
- 120V, 208V and 240V line voltage heating
- Max load 16 A: 1,900 W at 120V, 3,800 W at 240V
- Touchscreen with light and proximity sensors
- Temperature + humidity sensors, energy monitoring
- 2.4 GHz Wi-Fi + Bluetooth for setup
Pros
- Native Apple HomeKit, plus Alexa and Google Home
- Energy charts for each thermostat in the app
- Works with baseboards, fan-forced wall heaters and in-ceiling radiant heat
- No subscription
Cons
- The most expensive option, and you need one per heating zone
- No Matter support (Mysa’s Matter certification covers its central HVAC thermostat only)
- Needs four wires, so it won’t work on a two-wire installation
Installation and compatibility notes
The Mysa app walks you through the wiring step by step. On 120V, the Mysa needs line and neutral coming in plus two wires going to the heater. On 240V, it needs both hot wires in and both going out. It’s a single-pole thermostat, which matters if your local code requires double pole (more on that below). One Mysa can run several heaters on the same circuit as long as their combined load stays under its limit.
Price: ~$159
Mysa LITE — Best Value
The Mysa LITE keeps what most people actually use (app control, schedules, geofencing and voice control) and drops the touchscreen and sensors to bring the price down to about $99.
Best for: fitting out several rooms at once, where the savings per thermostat add up.
What stands out in real use
It’s the same Mysa app and the same smart home support as the V2. You still get 7-day schedules, a lower setting when you’re away, geofencing, and Apple Home, Alexa and Google Home control. Instead of live energy charts, Mysa sends a monthly runtime report by email showing which rooms ran the most. On the wall, it has an LED display with physical buttons and adjustable brightness.
Key specs
- 120V, 208V and 240V line voltage heating
- Max load 16 A: 1,900 W at 120V, 3,800 W at 240V
- LED display with physical buttons
- 7-day scheduling, geofencing, monthly runtime reports
- 2.4 GHz Wi-Fi
Pros
- About $60 less than the V2 with the same smart home support
- Native Apple HomeKit, plus Alexa and Google Home
- No subscription, and a 5-year warranty
- Uses the same app as the V2, so the two mix easily in one home
Cons
- No humidity sensor or live energy charts
- No zones, Early On or touchscreen
- No Matter
Installation and compatibility notes
The LITE uses exactly the same wiring as the V2 and works with the same heaters: electric baseboards, fan-forced wall heaters, convectors and in-ceiling radiant. You can mix the two in one home, for example a V2 in the living room and LITEs in the bedrooms, and control them all from one app.
Price: ~$99
Meross Matter Smart Thermostat (MTS215) — Best for Matter
The Meross MTS215 is the only Matter-certified line voltage thermostat we found on Amazon, and it costs less than the Mysa LITE. It also tracks energy use, which the LITE doesn’t do in the app.
Best for: homes built around Matter, or anyone who uses more than one smart home platform.
What stands out in real use
Matter. You set it up once and the same code adds it to Apple Home, Alexa, Google Home and SmartThings, with no skill or account linking. The Meross app adds a 24/7 visual schedule, real-time and historical energy use, and open window detection, which pauses heating when a sudden temperature drop suggests a window is open. The front is a glass touch panel.
Key specs
- 120-240V line voltage heating (not for 24V systems)
- Max load 16 A: 1,920 W at 120V, 3,840 W at 240V
- Matter over Wi-Fi (2.4 GHz only)
- Energy monitoring, open window detection
- Glass touch panel
Pros
- Matter certified, so it works across every major platform
- Energy monitoring for about half the price of the Mysa V2
- Open window detection built in
Cons
- Needs four wires, like every option here
- Energy history lives in the Meross app, not in your smart home platform
- Joins 2.4 GHz Wi-Fi only
Installation and compatibility notes
Meross says it works with electric baseboards, convectors and fan-forced heaters on 120V to 240V, and not with heat pumps or central air. It only joins 2.4 GHz Wi-Fi. If the rest of your home has central heating or cooling, our guide to Matter thermostats covers the 24V models.
Price: ~$80
Meross MTS200 — Best Budget
The Meross MTS200 is the cheapest way to get a wifi thermostat for baseboard heaters that still works with Apple Home. It’s essentially the MTS215 without Matter.
Best for: adding smart control to a spare room, office or basement for as little as possible.
What stands out in real use
It covers the basics and a bit more. You get the 24/7 visual schedule, energy monitoring with history in the Meross app, and open window detection, plus voice control through Siri, Alexa and Google Assistant. It connects to Apple Home and SmartThings directly rather than through Matter, which works fine today. The white LCD display shows the temperature, with 1°F accuracy.
Key specs
- 120-240V line voltage heating
- Max load 16 A: 1,920 W at 120V, 3,840 W at 240V
- Temperature range 41-95°F
- Energy monitoring, open window detection
- 2.4 GHz Wi-Fi
Pros
- The lowest price here, at about $60
- Apple Home, Alexa, Google Home and SmartThings support
- Energy monitoring included
Cons
- No Matter (the MTS215 costs about $20 more and adds it)
- Needs four or more wires
- A simpler display than the Mysa models
Installation and compatibility notes
Meross lists electric baseboards, convectors, fan-forced wall heaters and in-ceiling radiant heat as compatible, up to 16 A. Its compatibility check is blunt: any system with fewer than four wires isn’t supported. If you think you’ll move to Matter later, spend the extra $20 on the MTS215.
Price: ~$60
How to Choose a Baseboard Heater Thermostat
Line voltage, not 24V
A baseboard heater thermostat switches the heater’s full current, which is why it’s wired with thick wires and wire nuts. Google says high-voltage systems, which usually means electric baseboards, aren’t compatible with Nest thermostats, and the same goes for ecobee and the other 24V models. An electrician can add a relay with a step-down transformer so a 24V thermostat can control baseboard heat, but that’s a bigger job than swapping in one of the thermostats above. And if you’re adding a ductless heat pump next to your baseboards, that needs a different kind of controller again: see our mini split thermostat guide.
Count the wires in the box
This is the question that decides everything. With the breaker off, take the old thermostat off the wall and look at the wiring. Four wires (two pairs: one bringing power in, one going out to the heater) means any option here will work. Two wires means none of them will, because a smart thermostat needs its own power to run the display and Wi-Fi.
If you only have two wires, you have three realistic options. An electrician can run an extra wire to the thermostat location. You can have a relay installed and use a regular 24V smart thermostat. Or you can keep a standard line voltage thermostat in that room. Sinopé makes a Wi-Fi model that works on two wires, but it’s currently sold mainly in Canada and isn’t available on Amazon US. If the room only needs extra heat now and then, a plug-in heater from our guide to the best smart space heaters gets you app schedules without touching the wiring. It costs the same per hour of heat as a baseboard heater, since both are electric resistance heat (see what a space heater costs to run).
Check the voltage and the load
Your breaker panel tells you the voltage: a single-pole breaker usually means 120V, and a double-pole breaker means 240V. All four options here handle both.
Then check the load. Each of these thermostats handles up to 16 A, which is about 3,800 W on a 240V circuit. The wattage is printed on each heater’s label. One smart thermostat for electric baseboard heat can run several heaters in the same room if they’re on the same circuit and their combined wattage stays under that limit. Separate rooms on separate circuits each need their own thermostat.
Single pole vs double pole
A single-pole thermostat breaks one of the two wires to the heater. A double-pole thermostat breaks both, and turned all the way down it’s truly off. On a single-pole model, “off” is really just a low setting. The Mysa is single pole, and Mysa notes that some regions require a double-pole thermostat for baseboard heaters, so check your local code if you’re replacing a double-pole model. Whatever you install, always switch off the breaker before working on the wiring. If you’d rather not handle line voltage yourself, this is a quick job for an electrician.
Final Recommendations
For most homes, the Mysa V2 is the best smart thermostat for baseboard heaters: it works with Apple Home, Alexa and Google Home, and its energy charts show exactly where your heating money goes. If you’re fitting out several rooms, the Mysa LITE gives you the same app and smart home support for about $99 each.
If your home runs on Matter, the Meross MTS215 is the only line voltage option that supports it, and it tracks energy for about $80. The Meross MTS200 covers the basics for about $60. Whichever you choose, count your wires first, and see our guide on whether smart thermostats save money for what to expect on your bill.
Can I use a Nest or ecobee thermostat with baseboard heaters?
Not directly. Nest and ecobee are 24V thermostats, and electric baseboards run on 120V or 240V line voltage. An electrician can install a relay with a step-down transformer so a 24V thermostat can control baseboard heat, but a line voltage smart thermostat like the Mysa or Meross is the simpler fix.
Do smart baseboard thermostats work with only two wires?
Mysa and Meross models don’t. They need four wires (power coming in and power going out to the heater) so the thermostat can power its own display and Wi-Fi. With two wires, you can have an electrician run an extra wire, use a relay with a 24V thermostat, or keep a standard line voltage thermostat.
Can one smart thermostat control more than one baseboard heater?
Yes, as long as the heaters are on the same circuit and their combined load stays under the thermostat’s limit. The Mysa and Meross models in this guide handle up to 16 A, which is about 3,800 W at 240V or 1,900 W at 120V.
Which baseboard thermostats work with Apple HomeKit?
All four in this guide do. The Mysa V2, Mysa LITE and Meross MTS200 connect to Apple Home directly, and the Meross MTS215 joins through Matter, which also adds it to Alexa, Google Home and SmartThings.
Is there a Matter thermostat for baseboard heaters?
Yes. The Meross MTS215 is Matter certified and connects over Wi-Fi, so one setup code adds it to Apple Home, Alexa, Google Home or SmartThings. Mysa’s baseboard thermostats don’t support Matter.
Written by Evan Mercer
Founder & Lead Researcher, Smart Home Matrix
Evan digs through spec sheets, firmware changelogs, and thousands of owner reviews so you don’t have to. Every guide starts with a compatibility check and ends with picks he would install in his own home. Read more about Evan and this site, or see exactly how we choose products.