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Mysa Thermostat Review – Smart WiFi Thermostat for Baseboard Heaters

For so long until 2017, a proper smart thermostat was not available for baseboard heaters and line voltage based heating systems.  In 2017, Mysa thermostat was launched in the market – which is a smart thermostat exclusively designed for line voltage heating systems like baseboard heaters, fan-forced heaters, connectors, and radiant ceiling heaters.

Mysa comes packed with a lot of smart features like WiFi connectivity, internet-based control using apps, voice control by interfacing with smart home hubs (Alexa, Homekit, Google Home, etc), energy reports, and a lot more. 

Thermostats were really “old school” till 2011, and many households were using a simple digital programmable or manual thermostat variant. A revolution was started when Nest labs first introduced smart thermostats in 2011. Since then, lots of new smart and internet-connected models like Ecobee, Honeywell RTH9585WF, and Emerson Sensi have gained popularity.

The birth of the Mysa Thermostat

All those new smart & wifi enabled thermostats were low-voltage thermostat models suitable for central furnaces, heat pumps, and central boiler systems. No innovation was happening in thermostats for line volt systems like baseboard heaters until 2017 when Empowered Homes Ltd (headquartered in Canada) put an end to this by launching its innovative smart thermostat Mysa for line volt systems.

Mysa smart thermostat
Mysa Thermostat and App

In a nutshell, Mysa is currently the best WiFi enabled smart thermostat for line voltage systems, which can be controlled via internet, has a user friendly mobile app, can be interfaced to smart home hubs for voice control, and is compatible with 120/240 volts, delivering a max output power of 3800 watts at 16 amps current.

This beautifully designed 5.7 inches tall, 3.8 inches-wide, 1.1 inches-thick thermostat comes in a soft white rectangular box-type structure. This sleek design blends well with any wallpaper/interior theme and gives a stylish, elegant look to your wall.

The subtle LED light on its surface shows the set room temperature and two up/down arrows for temperature control. The controller inside is cooled by the heat sink which adds to the big size of this thermostat.   

This unit is compatible with the 110V, 120V, 208V, 220V, and 240V line heating systems like the electric baseboards and supports loads up to 3800 Watts. 

In order to control the device remotely, you will need to first install the device and then set up the app on your phone. The app works on both android and iOS devices and allows you to set up customized comfort literally from anywhere.

Mysa Thermostat Review
Mysa Thermostat App

The device has self-learning abilities and learns your schedule to give better suggestions for comfort and energy savings. Unlike Nest (which automatically creates a schedule & improves upon it), Mysa uses machine learning to improve upon a schedule that is already set by you initially. 

What makes MySa smart thermostat different?

One of the major problems that some of the smart thermostats faced was the lack of proper connectivity and the need for a third-party hub. MYSA thermostat has been designed to overcome these issues.

It has relatively good wi-fi connectivity and the MYSA app is also quite user-friendly. You need not be a tech guru, to use this app.

Also, it works with popular smart home hubs like Amazon Alexa, Apple HomeKit, IFTTT, etc. This means you need not be required to install any third-party hubs.

Therefore, if all you want in a smart thermostat is that it should work well with its wi-fi connections, the MYSA thermostat is the right choice for you.

Mysa for Electric Baseboard Heaters V1 v/s Mysa for Electric Baseboard Heaters V2


The Mysa thermostat sports a sleek, modern, yet minimalist rectangular design. It looks like a small white box which may seem a bit thick. It adds to the style quotient of your modern home.  

The display shows the current room temperature and two arrows (up/down) to change the temperature setting on the device. Temperature and the arrows are displayed using LED, which resembles the dotted displays of the past with a modern outlook. The display is a capacitive touchscreen, and the UP/DOWN arrows can be touched to increase or decrease the temperature setting. 

Mysa is a little bulkier in build and the thickness is due to the big heat sink used to cool off the Triac-based switching IC. Many conventional thermostats use relay-based switching which is inefficient compared to triac switching. Though the use of triac makes the device bulkier, it gives significant benefits in terms of faster switching, higher efficiency, and energy savings. 

The brightness of the display can be adjusted through the mysa app. It can be turned completely off or set to light in the 10- 100 percent brightness range. It is wired directly to the power supply and hence discards the need of using batteries.

The next thing, which makes a thermostat smart, is its inbuilt sensors. Let us see what this thermostat has to offer in regard to its sensors.


If we talk about its in-built sensors, then it is embedded with humidity and temperature sensors. These predict the amount of humidity and temperature in your room. It reflects the measured value on its screen, through a subtle LED light. This helps the thermostat to maintain the temperature of the room.

When the temperature sensor measures the room temperature to a value, which is far from the set value, the thermostat works at high power. This power is reduced as the room temperature approaches the set value.

The display shows how much power is being used by the thermostat. A single small flame indicates low energy consumption, while 3 small flames indicate the highest energy consumption.

The one drawback of this model is that it lacks a motion sensor. This effectively means that it does not offer any native geo-fencing feature, which is one of the helpful tools in reducing energy usage.

Talking about the remote sensors, it senses the outside temperature when integrated with the smart hub like IFTTT through the MYSA app on your phone.

Sensor Specs

Temperature Precision: +/- 0.4 F / 0.1 ℃
Humidity: +/- 2%
Control Range: Complete Off, 5-30 ℃

Customized Comfort

MYSA can be controlled from anywhere through its app on any android/iOS device. You can set the temperature and schedule according to your routine, easily through this app. You can set up a total of 56 temperature set points for the whole week. This means that, if you spread the temperature set points evenly over the week, you can set up to 8 temperature values a day.

You can create zones in your home, by using two or more thermostat which needs to work on the same schedule, through the MYSA app. You can create your customized schedule and save it for the future. Also, if you have a fixed routine, the MYSA thermostat learns it and implements it accordingly.  Your thermostat will work according to your schedule and deliver its best performance. In case you need to change the temperature in a particular zone, you can use the “Hold indefinitely” option. This overrides the set temperature to the new value.

Energy Saver

When you invest in such a high-priced smart thermostat, you need to know if it’s worth the price. A smart thermostat is placed in your smart home, to help you save energy in a smart way. So, you have to choose a thermostat which would help you with the same.

How this smart thermostat aids in saving energy? Well. it generates real-time energy usage reports which lets you check where and how much energy is being wasted. This helps you in generating an optimal schedule that not only suits your lifestyle but also your pocket.

Another cool feature is it’s easy to activate, vacation mode. If you are going away on a vacation, then set the vacation mode on. The thermostat will work accordingly.

There is also an option to cut off the supply between the thermostat and the heater. This means you can use the thermostat only when it is needed.

The MYSA app also estimates how much energy bill you will have to pay, according to the energy usage.

Compatibility & Tech Specs

MySa is a line voltage/high voltage thermostat that works with 110-volt or 220-volt systems. 

MySa thermostat is compatible with most of the line voltage heating systems like:

  • Electric baseboard heater,
  • Convectors (short cycle),
  • Fan-forced convectors (long-cycle),
  • Radiant ceiling heating
  • Self-contained hydronic baseboards.

Note: MySa thermostat can not be used with low voltage systems like Central furnace-based systems, boiler heating systems, heat pumps, or any other system that comes under low voltage operation.  

Electrical Ratings
  • Output – up to 3,800 Watts (maximum)
  • Voltage – 120V / 240V AC
  • Max Current – 16 Amperes 

MySa Installation

First of all, MySa is a high voltage/line voltage thermostat. If you don’t have prior experience in handling electrical wiring, you should not try to install a line voltage thermostat yourself. You’d be better off calling a qualified electrical technician to do the installation for you.  Otherwise, if you have enough basic technical knowledge about electrical systems, and if you’ve done some electrical installations before, you can easily install a MySa thermostat following the well-explained installation guide.

MySa has published a demo installation video on Youtube. You may watch if you want to get an idea of MySa thermostat installation.

The beautiful hardware features accompanied by the basic smart thermostat features make this thermostat a good choice. Before wrapping up this review, here are the pros and cons of the product listed briefly.


  • Sleek, robust design
  • Reliable wireless connectivity
  • Temperature and humidity sensors with high precision
  • Schedule up to 56 temperature points, that is around 8 temperature set points for each day
  • Works really well and is in sync with popular smart home hubs like the Apple Homekit, Google Home, Amazon Alexa, and IFTTT.
  • Voice control via smart home hubs.
  • The use of TRIAC Integrated circuit instead of a relay helps the thermostat to heat up at different intensities, which in turn increases the thermostat efficiency
  • Energy usage reports are available in the mobile app to help with proper energy use monitoring and saving energy by taking necessary action.
  • A quick set of the vacation mode
  • Supports multi-zone feature


  • Lack of motion sensor.
  • No native Geofencing, which is quite useful in reducing energy consumption.
  • Does not support Samsung smart things hub as of now.
  • The use of a large heat sink for the TRAIC IC makes the product thick and bulky.

To wrap up, MySa is currently the best line voltage thermostat with a WiFi feature for systems like baseboard heaters. If you’re serious about the WiFi feature, you should not look beyond MySa as its wireless connectivity is very reliable. Also, there are not many choices for line-volt thermostats with WiFi features and a well-designed mobile application. Sinope smart thermostat is an alternative option, but when compared, Mysa proves to be the winner. There are other models like Stelpro KI, which require third-party hubs like a Z wave controller to connect to the home WiFi network or internet. And the mobile app for the Stelpro model is substandard. Overall, MySa is really a winner & the best choice (if you’ve enough budget) as a modern, smart line voltage thermostat.

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  1. israel schwartz says:
    Your comment is awaiting moderation. This is a preview; your comment will be visible after it has been approved.
    I have a question can I disconnect the actual thermostat shouldn’t be able to change temperature only to be controlled by my Wi-Fi? Or smartphone
  2. Tony says:
    Your comment is awaiting moderation. This is a preview; your comment will be visible after it has been approved.
    I am on the Hydro Qu├ębec DT rate which charges a much higher rate during peak consumption periods when temperature is below – 12. Can Mysa be programmed to turn off the thermostat at – 12. This would be for a garage application and turning off thermostat would not cause any risks due to freezing.
  3. Winston says:
    Your comment is awaiting moderation. This is a preview; your comment will be visible after it has been approved.
    The MySa thermostat will not work with a baseboard heater which uses a 2 wire (single pole) connection to the thermostat. This should be noted in the “Cons” section of the review.