I got this unit after another unit died after a little over a year. It was easy to install and supports a bunch of different configurations for heated floors with different value sensors. The unit is bigger than I expected, especially next to the outlet, and the display doesn't show a lot of information. The included picture is from before it was paired to the network. This works well with Apple HomeKit and Alexa and I was able to easily integrate it into my Home assistant network. If this lasts more than 18 months it is already doing better than my previous unit.

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?).

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.

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.

Easy to install. Easy to pair with phone. Easy to control. Easy.

I was really excited about this thermostat as a replacement for my current T-stat that did not have WiFi or programmability. PROS: - Great looking with nice interface (I was only able to experience the touch-sensitive display) - Very easy to install CONS: - Show-stopper in my case: The device was not able to connect to my WiFi router (Netgear Orbi). I will spare you the technical reasons but it would have been great to know that the device was not going to work with my router before I invested time in purchasing, installing and wasted a lot of time in trying to configure. Apparently, there is a list on their website with the list of unsupported routers. They claim it's a short list, but it includes Orbi which has become very popular these days, as well as ALL of XFINITY/COMCAST routers, which a whole lot of people use. It's a shame that I couldn't use these T-Stat. But a bigger shame that the company wouldn't highlight the compatibility risk on the Amazon ad.

Installed the mysa to replace an old dumb thermostat. It’s great being able to control the electricity usage via the app, vs letting it run all the time. Comfort and convenience are the result. And it works perfectly with Apple HomeKit. The instructions are light on technique details but the customer service via their website is super responsive.

We needed to replace 3 old/dumb in-floor heat thermostats. Picked these and couldn’t be more pleased! Super easy install, simple configuration for Apple HomeKit. They need to take over some of the other smartphone devices… Few were this thought through

I just installed the Mysa in floor heat thermostat. It’s esthetically very sleek and nice looking. The reason I gave 4 stars is two-fold. Whoever designed where the little thermostat wires attach into the unit should be fired. It’s at a terrible angle to try and maneuver those two sensor wires to the back of the unit. I tried to post a video, but just know it’s annoying. Second, the thermometer nub that you are supposed to hide under your flooring to give precise heating control is enormous and I actually couldn’t make it work without buckling my luxury vinyl when laid over top. I didn’t measure, but that nub has to be close to 1/4” thick. On a floor with concrete, you would have to chisel our some concrete in order to get the flooring to lay flat over top of it. I’ll still use the unit and see how it works by using the ambient room temp, but have read that method results in large fluctuations of temperature. I do like that the unit does a good job of telling you if there’s an error in the system somewhere. I had a broken wire connection within the wall leading to the pad heaters i used and this thermostat. It identified an H2 code error that helped me determine the issue. The quiet warmth brand that I have in another room would not identify that there was any issue and I wouldn’t have so easily diagnosed the issue.

The first one I received kept tripping the GFCI for an unknown reason. The company immediately offered to replace it. Although it did take about two weeks to arrive (shipped from Canada to US), the replacement has worked perfectly. The native app is great, and the information it provides is useful. Two (minor) things I’d change: - the touch surface of the faceplate takes a firm press to activate. A “lighter touch” would be nice. - the temperature of the floor as displayed on the thermostat never seems to match the set point - it’s always 1 degree cooler. I realize this is probably due to rounding or it being “72.9” instead of 73, but it’s a bit disconcerting to set the thermostat to 73 degrees, and never see that temperature achieved on the display - it just makes me think it’s broken (when it isn’t).