Smart Double-Pole Thermostat for Electric Heating TH1500ZB (Compatible with Alexa) 3600 W / 240 V

The thermostat itself works exactly as I would expect a thermostat to act. You set the target temp, it heats, shuts off when it reaches temp. It’s double pole, which was important for my setup, and the physical interface is fairly easy to use for a 2 button system. It seems to be fairly efficient, though I don’t have a baseline to compare it against. It does seem to use different amounts of power depending on how much it needs to heat, though determining that is where you start to see the problems.First, the documentation provided is awful. It barely covers installation and doesn’t say anything about using the app to control it aside from how to connect it to a hub. No overview of its capabilities, no explanation of what everything on the lcd screen means, no indication of how to update firmware, etc. the instructions are essentially for a “dumb” thermostat, not a smart one.Next, the hub integration. I originally bought this particular model because of support for the Hubitat platform and the zigbee connection (1 less thing on my WiFi network). I wish I had done a bit more research before doing so. While it is true you can natively pair this to the Hubitat and control it your integration options are fairly limited. Upon further investigation it turns out that Sinope has been reluctant to share API details with the Hubitat team, so while you can set temperatures, create controls, and other basics you are not able to do some more advanced things. For example, you cannot get usage data (so forget about fine tuning your integration for maximum savings), can’t use the “outdoor temperature” display, and you can’t update the firmware. Hubitat’s developers have indicated that much of this functionality couldn’t be implemented because Sinope wouldn’t disclose the API details to do so despite smart things having some (if not all) of these. In short, if you aren’t going to make ALL functionality available via Hubitat (whether Sinope writes the code or provides API data to Hubitat so their devs can program it) then don’t ADVERTISE the integration. The community has tried to add this functionality with mixed results, but even that requires a driver that Hubitat (the company) can’t support natively.Third, the Sinope hub isn’t of much additional help. Once I realized I couldn’t get usage data I broke down and bought the gt130 hub thinking I could swap back and forth between hubs as a workaround until I had things set the way I liked. I set up the hub, got the thermostat switched over, and loaded the app up. To my surprise, the neviWeb app isn’t much more help (though it was enlightening in terms of what the thermostat itself can do on its own). The hub itself controls the “schedule” you set (so unlike other thermostats where the schedule is programmed in directly into the thermostat if you take the hub away there is no schedule). The usage graph tells you how much you’ve used hour over hour, but there seems to be no way to see in real time what the current usage is (so you can’t tell how effective the “variable” power control actually is). There’s no visible option to check for firmware updates (and I haven’t been able to verify if I have the latest firmware anywhere including their website). There appears to be an “away” mode for geolocation, but I haven’t tried it yet and it isn’t clear whether this is a mode in the thermostat or on the hub only. If it is on the thermostat, then that’s another feature unavailable with their Hubitat support. Once again, I can’t find any documentation on how to use the app even with the hub, so feeling kinda like I wasted the extra money there. And finally, despite setting the language to English portions of the app are still in French. Lazy programming at its finest.Ultimately, while the thermostat itself works well I find it hard to call it a “smart” thermostat. More like a dumb thermostat made smart IF you also purchase their hub, and even then exceptionally limited.

Purchased to replace a King K102 line voltage thermostat which uses a bimetallic sensor to control temperature - I found it did a very poor job in regulating room temperature (it would turn on and stay on for hours, well beyond the temperature set point). Figured I would buy a smart thermostat to replace it and settled on this one.Installation was straightforward as expected (2x line wires, 2x load wires) and easily paired with my SmartThings hub to enable the 'outside temperature' display on the unit and control/schedule climate changes remotely. This unit does a fine job in controlling room temperature in a consistent fashion, so no complaints there.

Advertised to work with Alexa. Cannot work with Alexa without purchasing an additional device that is not mentioned in the AD