Mysa for Electric Baseboard Heaters — Overview

Last updated: October 22, 2026

Mysa for Electric Baseboard Heaters is a smart thermostat for line-voltage electric heaters. It works with 120/208/240 VAC systems.

It controls these heater types:

  • Electric baseboard heaters

  • Convectors

  • Fan-forced heaters

  • Radiant heaters

  • Self-contained electric hydronic baseboard heaters (the heater has its own sealed liquid)

A self-contained electric hydronic baseboard heater is not the same as a hot-water (boiler) hydronic system.

Is it right for your home?

Mysa for Electric Baseboard Heaters works only with line-voltage systems.

Look at the wires on your current thermostat. Thin wires with the labels R, C, W, Y, G or O/B mean that you have a low-voltage central HVAC system. For that system, use the Mysa Smart Thermostat.

Not sure? Use the Mysa Compatibility Checker. You can also read our Compatibility Quick Check article.

Three models

Mysa for Electric Baseboard Heaters comes in three models: Gen3, V2 and Lite.

Mysa sells Gen3 in Canada. V2 and Lite are the current models in the United States.

Gen3 is the newest model.

  • Highest load limit of the three models (see the table below)

  • Triac control

  • Matter certified

  • Smart Early On: Mysa learns how long your room takes to heat up

  • Temperature offset

  • Energy Over Time charts (energy use in kWh)

  • Zones and Smart Alerts

  • Humidity

  • Capacitive touch controls

V2 has Zones, Saved Schedules and Smart Alerts.

  • Zones, Saved Schedules and Smart Alerts

  • Early On: by default, Mysa starts to heat up to 30 minutes early

  • Energy Over Time charts (energy use in kWh)

  • Adaptive touch display

Lite is the lower-cost model.

  • Scheduling and geofencing

  • Temperature offset (firmware 3.17.1.2 or newer)

  • Smart home integration

  • Physical buttons

  • Runtime data only (no kWh charts)

Some features are not on all models:

  • V2 does not have temperature offset.

  • Lite does not have a preheat feature.

  • Only Gen3 is Matter certified. V2 and Lite are not Matter certified.

Load limits

All three models work with 120/208/240 VAC. Each model has a maximum current and a maximum wattage:

Model

Maximum current

Maximum at 120 V

Maximum at 208 V

Maximum at 240 V

Gen3

16.7 A

2,000 W

3,400 W

4,000 W

V2

16 A

1,900 W

3,300 W

3,800 W

Lite

16 A

1,900 W

3,300 W

3,800 W

The Gen3 load limits are not correct for V2 or Lite. Use the V2 and Lite limits for those models. For a full comparison, read the Gen3 vs V2 vs Lite article.

What you need

Before you buy, make sure that you have all of these:

  • A thermostat on the wall. A dial on the heater is not a thermostat that Mysa can replace.

  • 120/208/240 VAC wiring at the thermostat location.

  • 4 wires in the gang box: two cables with two wires in each cable. Do not count the ground wire.

  • A heater that is within the load limit for your model.

  • A smartphone (iOS or Android).

  • A 2.4 GHz Wi-Fi network. Mysa does not support 5 GHz Wi-Fi.

For more information, read these articles:

  • Compatibility Quick Check

  • Wiring Requirements

  • Wattage & Amperage Limits

  • Do I Need an Electrician?

Setup

The Mysa app gives you instructions for each step:

  1. Connect the wires.

  2. Install Mysa on the wall.

  3. Pair Mysa with Bluetooth and Wi-Fi.

  4. Set the heater type.

Most installations take 15 to 20 minutes.

Manuals

Get support

Email install@getmysa.com.