Gen3: Overview and product specifications

Last updated: October 23, 2026

Gen3 is the third-generation Mysa for Electric Baseboard Heaters, for line-voltage electric heating. Gen3 is sold in Canada.

At a glance

  • Voltage: 120/208/240 VAC

  • Load limit: 16.7 A max. 2,000 W at 120 V, 3,400 W at 208 V, 4,000 W at 240 V

  • Switching: Silent triac switching

  • Wi-Fi and setup: 2.4 GHz Wi-Fi only (no 5 GHz). Setup over Bluetooth.

  • Smart home: Matter only. Works with Apple Home, Google Home, Alexa, SmartThings and Home Assistant through Matter.

  • Sensors: Temperature and humidity

  • Features: Energy Over Time charts, Zones, Saved Schedules, Smart Alerts, Adaptive Brightness and Wake on Approach

  • Comfort: Smart Early On and temperature offset

Compatible heating systems

  • Electric baseboard heaters

  • Electric convectors

  • Fan-forced convectors

  • Radiant ceiling heating

Gen3 is not compatible with low-voltage (24 V) systems or electric in-floor heating.

Controls and display

  • 6 × 11 LED dot-matrix display

  • Capacitive touch controls (up and down)

  • Display brightness: manual, or Adaptive Brightness

  • Wake on Approach

  • Hardware Lockout Options (None, Limit or Full): set what people can change at the thermostat

Sensors and readings

  • Ambient temperature and humidity

  • Current and voltage

  • Instantaneous power

  • Light and proximity

Smart features in the Mysa app

  • Manual schedules, 9–5 schedule wizard and My Routine schedule wizard

  • Saved Schedules

  • Home, Away and Vacation shortcuts

  • Geofencing

  • Smart Early On

  • Energy Over Time charts (kWh), per device and for the whole home

  • Smart Alerts for temperature and humidity

  • Temperature offset

  • Zones: you can put Gen3 in a zone with V1 or V2. Lite cannot be added to a zone.

Smart home (Matter)

Gen3 is Matter certified. Set up Gen3 in the Mysa app first. Then add Gen3 to Apple Home, Google Home or Alexa through Matter:

  1. In the app menu, tap Home Assistants.

  2. Tap Mysa Baseboard V3. Then select your Mysa.

  3. Copy the Pairing Code.

  4. Add the code in Apple Home, Google Home or Alexa.

Through Matter, you can see the current temperature, change the heating setpoint and set the mode (Heat or Off). You can also use voice control and platform automations.

Use the Mysa app for schedules, heater type, temperature offset, geofencing, Zones and other Mysa features.

Gen3 is Matter only. It does not have the native Apple HomeKit integration or the Google Home and Alexa cloud integrations that V1, V2 and Lite use.

For more information, refer to Gen3: Connecting to your Smart Home using Matter.

Certifications

  • CSA C-828

  • Matter

For the TÜV SÜD safety certificates, refer to Certifications.

Physical specifications

  • Model (nameplate): MYSA BB V3-0

  • Dimensions: 145 × 99 × 48 mm (5.7 × 3.9 × 1.9 in)

What is in the box

  • Mysa for Electric Baseboard Heaters Gen3 thermostat

  • 3 wire nuts

  • 2 mounting screws

  • User guide