Mysa for Ductless Mini-Split Heat Pumps photo 1
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For Mini-Split Heat Pumps

Makes ductless mini-splits, window or portable air conditioners smart and convenient.
$139.00

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Pricing details
  • Mysa for Ductless Mini-Split Heat Pumps × 1 $139.00
$139.00

Meet Mysa for Mini-Splits — add a smart WiFi thermostat to your ductless mini-split heat pump without any wiring. Installation takes 10 minutes: plug into a standard outlet, point your old remote to pair, and you're done. Adjust temperature from work, vacation, or the next room using the free app, or use voice commands with Apple HomeKit, Alexa, and Google Home. Climate+ mode uses the on-device sensor to maintain your exact set-point, eliminating hot and cold spots automatically.
speaker_phoneRemote Control
calendar_checkCustom Scheduling
humidity_percentageHumidity Sensing
acute15min Install
infraredClimate+

Comfort and control anywhere with our Mini-Split Thermostat

Works with most ductless mini-split heat pumps, window air conditioners, and portable AC units that use an infrared remote with a display screen.

Mysa replaces your handheld remote by learning its signals during setup. Requires direct line of sight between Mysa and your indoor unit for reliable infrared control.

Supported Functionality
Supports Heat, Cool, Dry, and Fan-only modes.
Controls up to five fan speeds, plus Auto and Sleep where supported. Supports swing and vane step positions and Auto swing where supported.

Features not supported
Does not support freeze protection, changing head-unit status, or Follow Me / remote room sensing features.

Dimensions
Height: 5.1 in (129 mm)
Width: 3.5 in (88 mm)
Depth: 0.8 in (20 mm)

Display
LED display with touch buttons
Up/down temperature controls
Adjustable display brightness

Sensors & Control
Temperature: ± 0.5 °F (±0.3 °C)
Humidity: ± 2%

Wireless Connectivity
Wi ‑Fi 2.4 GHz (802.11 b/g/n)
Bluetooth Low Energy (BLE)

Compatibility
Works with most ductless mini‑split heat pumps
Controls the indoor unit via infrared (IR); requires line of sight

Control
Heat, Cool, Dry, Fan-only
Fan: five speeds, plus Auto and Sleep
Swing & vane: Step positions and Auto swing where supported

Features not supported by Mysa
Freeze protection
Head-unit display status
Follow Me

Our return policy is simple. High utility bills will never return. But if you do need to send your Mysa back, that's simple too - free shipping both ways and expert support at every step.


You expect a smart thermostat to last. After a million units and years of engineering refinement, we know ours do. That's why every Mysa comes with 5-year coverage - more than double the 2-year industry standard.

What's in the box

Features

other_housesMulti-Home
home_pinAuto Home / Away Temperature
family_groupShared App Access
analyticsMonthly Energy Report
area_chartEnergy Charting
brightness_6Auto Brightness
dew_pointTemperature / Humidity Alerts
wifiWifi Connection
share_locationGeofencing
in_home_modeSmart Home Control
calendar_checkCustom Scheduling
speaker_phoneRemote Control

Control from Anywhere

"The 4 best smart thermostats of 2025"

~ Wirecutter / New York Times

"Works as expected…finally got rid of the junky 1980’s thermostat that only heated to the max temp"

~ Derek F.

"Does a better job than the other smart thermostats I've used and the app gives you all the information you need to make the best use of your home heating dollars."

~ Ian V.

"The step by step guide really help to make things easier for first time installer like me.”

~ Chris L.

"Mysa support team is awesome; Leigh helped with the installation and made the whole process smooth.”

~ Anmol A.

"Reliable, beautiful, and clearly improved”

~ La Presse

What others asked before buying

Can I control all my Mysas in the same app?

Yes. Control everything from the one app. Manage baseboard heating, ductless mini-splits, central HVAC, and electric in-floor heating in one place.Set unique schedules for each thermostat, and in the future group them all together for seamless control.

Does it require Wi-Fi?

Yes. Mysa needs a 2.4 GHz WiFi connection to enable remote control, voice commands, smart home integration, and app-based features like energy reports . Without WiFi, the thermostat still regulates temperature using manual controls on the device itself, but you lose all smart functionality. Make sure your WiFi signal reaches the thermostat location before installation

Does Mysa have a microphone or speaker?

No. It's a thermostat, not a listening device. We believe those experiences are best left to a smart home speaker that's likely updated more often than your thermostat.

Does Mysa sell my data?

No. We sell thermostats. That's how we make money. Full stop.

Does this thermostat require any sort of subscription for ongoing use?

No subscriptions here - ever - be it for our mini-split thermostat, our baseboard heater thermostat, or our in-floor heating thermostat. All of Mysa’s smart features, including app control, scheduling, energy insights, and smart-home integrations, are included with your purchase. You’ll get free app updates, unlimited access to your data, and full control of your thermostat without any monthly or hidden fees.

How many thermostats do I need for my home?

Each Mysa is designed to work on its own. You can start with just one thermostat and add more over time. To maximize energy savings, start with three thermostats in the rooms you use most.

What is Mysa?

Smart thermostats built for every system in your home. We help you save energy and maintain a comfortable home. With its user-friendly app, you can control your heating or cooling systems from anywhere.

4.2 507 reviews

  • Anonymous Verified

    United States

    Split systems needed this device and the execution of the idea is excellent

    Split systems needed this device and the execution of the idea is excellent. Installation is well guided and the thermostat is very versatile in terms of options for controlling the split system. I have not used yet with the air conditioning mode but in the heating mode I am experiencing much more even heating without spikes of warm and cold periods. I would welcome more details on the extent of control the thermostat exercises over the split system. For example, does the thermostat override the split system sensor when there is a call for heating or cooling. Another question is whether the differential I am experiencing in the heating mode is the result of a conflict between the Mysa sensor and the split system sensor. Overall, I am very satisfied with the Mysa thermostat.

    Review for Mysa for Ductless Mini-Split Heat Pumps

  • Colt C. Verified

    U.S. Virgin Islands

    Mini split thermostat works great with one exception

    Mini split thermostat works great. Only thing I don’t like is when the Mysa thermostat sends a command to the air handler it shows the temperature in Celsius on the air handler even though I have the setting on Fahrenheit on the thermostat. I changed the temperature on the air handler to Fahrenheit with the remote, but the Mysa thermostat changes is back to Celsius when it sends a command.

    Review for Mysa for Ductless Mini-Split Heat Pumps

  • Jamie Verified by shop

    Very easy set up and works pretty much as expected. A very easy set up for scheduling to allow for reduce electricity consumption where heating or cooling is not needed.

    Review written in Shop App

    Review for Mysa for Ductless Mini-Split Heat Pumps

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