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Mysa

Mysa Smart Thermostat for Electric in-Floor Heating 240V | Class A GFCI | WiFi Programmable | App & Voice Control with Alexa, Google, Siri | No Subscription | Easy Install

  • Based on 322 reviews
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$179.00 Why this price?
New Year Deal · 10% off was $199.00

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FREE refund/replacement until Jan 31, 2026

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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, Jan 24
Order within 6 hours and 4 minutes
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Features

  • Make Your In-Floor Heating Smart - for high/line voltage systems. Mysa works with 120-240V electric in-floor heating systems and includes a built-in Class A GFCI. Does not work with hydronic or water-based systems.

Brand: Mysa


Model Name: Mysa Smart Thermostat for Electric In-Floor Heating


Product Dimensions: 0.78"D x 3.03"W x 4.56"H


Special Feature: Daylight Savings Time Ready, Lockable, Programmable, Temperature Display, Vacation Mode


Brand: Mysa


Model Name: Mysa Smart Thermostat for Electric In-Floor Heating


Product Dimensions: 0.78"D x 3.03"W x 4.56"H


Special Feature: Daylight Savings Time Ready, Lockable, Programmable, Temperature Display, Vacation Mode


Color: White


Specific Uses For Product: Under Floor Heating


Temperature Control Type: Smart/Remote


Connectivity Technology: Wi-Fi


Included Components: 1 x Mysa for In-Floor Heating Thermostat, 1 x Welcome Booklet, 1 x Floor Sensor, 2 x Mounting Screws, 4 x Wire Nuts, 1 x Wiring Instructions


Power Source: Electricity,Electric


Item Weight: 499 Grams


Voltage: 240 Volts


Material: Plastic


Shape: Rectangular


Display Type: LED


Finish Type: [Standard]


Control Type: App Control


Control Method: App, Touch


Connectivity Protocol: Wi-Fi


Mounting Type: Wall Mount


Style: Modern


Backlight: Yes


Specification Met: RoHS


Wattage: 3800 watts


UPC: 821661208273


Manufacturer: Mysa


Item Weight: 1.1 pounds


Item model number: MYSA IN-FLOOR V1-0


Is Discontinued By Manufacturer: No


Date First Available: September 20, 2017


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Jan 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Works Amazing!
One of the best thermostat products I have ever purchased. I have several of them which I use to control Cadet 240v electric heaters in my garage and cabin. They are very well designed, easy to install and set up and have been very reliable. I appreciate the ability to monitor not only the heating usage but also the power drawn. They are very easy to integrate into Home Assistant, HomeKit, or just standalone with the Mysa app. ... show more
Reviewed in the United States on January 25, 2025 by Bob G.
    • One tricky part of install
Bought the Mysa In-Floor thermostat to replace a Schluter Ditra-Heat RT (no wifi). Main problem I was trying to solve is that the Schluter sometimes turned on by itself after a power failure, and in a remote house that was a big problem. Mysa is a much more elegant thermostat. Easy to install, simple interface. Obviously with WiFi, can be controlled remotely (Schluter has a wifi version but felt Mysa more elegant for a residential installation). Switching & installing was easy with the exception that connecting the floor heater sensor to the thermostat terminal was surprisingly difficult. Sensor wire is typically very thin and malleable, and the terminal port is sort of awkward to get to (and tiny), so threading the spindly wire into the terminal was a challenge. Once done though, connected to wifi and the android app seamlessly, and I can now remote control and turn off (and on) the floor heater. Three more suggestions (1) Mysa should try to help identify the proper floor sensor setting by showing a list of floor heater makers and the appropriate sensor settings (2) Mysa should include a tiny screwdriver for the floor sensor terminal screws, they are much smaller than what a typical household screwdriver would fit, and (3) their documentation for the app is in the form of faqs and can be sort of not helpful for a holistic overview or for specific questions. Granted the app is fairly intuitive, but for example, for the simple question of "how do I turn off the power to the floor heat", it is not completely clear what actually achieves that. There is a FAQ answer on the website, but those instructions don't actually match the app (maybe it matches the iOS app?). ... show more
Reviewed in the United States on January 28, 2021 by Amazon Shareholder '99
    • Easy to set up - very picky on network settings for Home Kit integration
Just installed this today, so far it works fine. Takes a while to heat up my floor but that may just be an issue with the heater mesh install which was done before I bought the house I'm in. Previous thermostat was a suntouch from 2004 that was crumbling apart and had a very bad coil whine. Install was easy pretty easy. I like that there's a plate to install and the brains are on a removable faceplate. It made the install very easy. Before you install this (but right after you remove your current thermostat if you are replacing it) measure the resistance of your thermistor/floor temp probe, you'll want to validate the temp probe resistance setting after you add the thermostat to the app. The instructions do not point this out. Adding to homekit was a nightmare. Definitely set up the thermostat from the app using the homekit method. But you definitely need to have your wifi network properly configured. With the way most smart home devices work you can rarely blame the manufacturer unless if they're using a terrible bluetooth radio and pairing with a hub or appletv (I'm looking at you 3rd gen august smart locks). Firstly you should be using a separate network for IoT devices, for security and compatibility purposes. You can google why you should have your IoT devices segmented away from you main network. There are plenty of videos and articles that will explain this in leighman's terms, and there may be videos for your specific (or similar) router on how to set this up mostly. These are the settings that I needed to have for my IoT network to get this to connect properly via homekit. I am using a Ubiquiti Unifi based network with a UDM pro and 3 Access Points. - Turn off IGMP snooping - Turn on Multicast DNS - Only have the 2.4 GHz band turned on for the IoT wifi network - Both multicast management options unchecked - Uncheck minimum data rate control - Have the 2.4GHz density slider all the way over to 1Mbps - Security protocol set to WPA2 (another reason to have a separate IoT network) This is using an ESP32 at least from what you can see on the back of the faceplate as the chip is there. Overall I'm confident in this device and it looks great in my master bathroom. All things said and done, it works great so far! I will update this review after a while or if I run into major issues. ... show more
Reviewed in the United States on September 9, 2023 by railerswim
    • Well designed, easy to install
Review Image by Nathan Cobb Nathan Cobb
Review Image by Nathan Cobb Nathan Cobb
Review Image by Nathan Cobb Nathan Cobb
Review Image by Nathan Cobb Nathan Cobb
Very well designed thermostat, with a really slick and smooth installation. Of course, before installing it, I had to take a look inside. It's really well designed, and also contains a lux sensor and a humidity sensor, which I did not realize when buying (but are a nice plus). An ESP32 is used for networking, so it should be pretty easy to convert to ESPHome if/when this company goes bankrupt. The device also works great with HomeAssistant for local-only control. I was notified the device existed, I typed in the code from the manual, and now I can access it & automate it. On the other hand, the app, while functional, has a couple dark patterns. You are unable to use the device without an account, which is entirely unnecessary since the device works just fine without the internet. It also subscribes you automatically to their pointless mailing lists, and doesn't give you an option to opt-out on signup. ... show more
Reviewed in the United States on May 27, 2023 by Nathan Cobb Nathan Cobb
    • Worked good at first…
Review Image by IAN S. IAN S.
I really want to like this product but it stopped working after approximately 10months and no longer functions. At first it would power off and boot right back up, now it doesn’t work at all. I constantly get notifications that is offline and do not see a support function on this product. @Mysa if you are reading this please contact me, I need some support ... show more
Reviewed in the United States on August 1, 2024 by IAN S. IAN S.

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