Adding a Thermostat in the App

Last updated: November 5, 2026

Use Add a Mysa to pair a powered thermostat to your account, then connect it to 2.4 GHz Wi-Fi. Most Mysa pair over Bluetooth. Mysa for Baseboard Heaters V1 and Mysa for In-Floor Heating pair over Wi-Fi.

Video Walkthroughs

Pick the video for your thermostat.

Mysa for Baseboard Heaters (Gen3, V2 and Lite)

Mysa for Baseboard Heaters V1

Mysa for In-Floor Heating

Mysa for Central HVAC

Before You Begin

  • Thermostat is installed, powered on and showing its pairing icon (Bluetooth symbol, or Wi-Fi symbol on V1 and In-Floor)

  • Phone Bluetooth is on (Bluetooth models)

  • Mysa app is installed and you are signed in

  • You have the 2.4 GHz Wi-Fi name and password

  • V1 and In-Floor: the Mysa ID from the label on your thermostat

  • Phone is within about 1–2 meters of the thermostat

Steps

Add new sheet. Choose Add a Mysa.

  1. Open the Mysa app. Tap + at the top right of the home screen, then Add a Mysa

  2. Tap Yes, ready to set up. Mysa for Central HVAC not installed yet? Tap Not yet, guide me through the install and follow the in-app install guide

  3. Pick the icon you see on your Mysa: Bluetooth Symbol, or Wi-Fi Symbol (V1 and In-Floor)

  4. Bluetooth: stand in front of your Mysa and tap Next, tap your Mysa in the list, tap Identify (your Mysa smiles), tap Yes, then accept the Bluetooth pairing request on your phone

  5. Wi-Fi (V1 and In-Floor): tap Allow when your phone asks to find devices on your local network. If asked, enter the Mysa ID: only the part after "Mysa-"

  6. Bluetooth models: choose the home, then name your Mysa

  7. Select your 2.4 GHz network, enter the password and tap Confirm. On V1 and In-Floor, tap Join when your phone asks to join the Mysa's Wi-Fi network

  8. If an update starts, keep the app open and don't touch the thermostat until it is done

  9. Finish the last step for your thermostat:

    • Baseboard: in Final Touches, pick your heater type (V1 also sets the cycle length), then tap Done

    • In-Floor: in Final Touches, pick your floor type (it sets the maximum floor temperature) and your sensor. Using another sensor? Tap Other and pick its resistance. Then tap Done

    • Central HVAC: if the app asks for an HVAC configuration code, tap Enter Code, type it and tap Save, or tap Tap here to get your code. Then run the Status Check

When pairing succeeds, the thermostat appears on the home screen as Online.

Note: Mysa requires 2.4 GHz Wi-Fi. It does not connect to 5 GHz–only networks.

In-Floor tip: to switch between Floor and Ambient, open Mode on the thermostat's control screen.