A:AnswerNo, it will work without Wi-Fi and act like a standard thermostat. You'd be better off getting a cheap standard thermostat if not connecting the unit online.
A:AnswerI believe that may be an option (not sure on the specifics), but you also can set it to only heat or only cool - it won't switch back and forth between the furnace and A/C.
A:AnswerThe ecobee3 lite does have a backlit display. The backlight activates when you interact with the thermostat, such as tapping the screen or adjusting settings. It doesn't stay on continuously, but it will turn on automatically when needed, making it easier to read in low-light conditions.
A:AnswerYes, you can still use your existing Alexa Dot to control the ecobee3 lite thermostat with voice commands. While the ecobee3 lite doesn't have built-in voice control, it is compatible with Alexa and can be connected to your Alexa device for voice commands.
A:AnswerThe ecobee3 lite Smart Thermostat can work with low-voltage, 2-wire heat-only systems, as long as the system uses a standard 24V power supply. It is compatible with most heating systems, including electric baseboard heating and forced air systems, but make sure to check for compatibility with your specific setup using ecobee’s compatibility checker.
https://www.ecobee.com/compatibility/thermostat/
A:AnswerYes, it can replace it, but it's always best to check compatibility before purchasing, and you can do that here https://www.ecobee.com/compatibility/thermostat/
A:AnswerIf you're still having issues access your thermostat, reach out to our support team and we'll get that fixed up for you. https://www.ecobee.com/en-ca/contact/
A:AnswerYes, we call them Heat/Cool Minimum Delta. You can find them in threshold settings. Learn more about that here: https://support.ecobee.com/s/articles/Threshold-settings-for-ecobee-thermostats
A:AnswerIf you register your device on ecobee.com or the ecobee Mobile app, and create an ecobee account, you will be required to provide an e-mail address to associate with your ecobee account.
A:AnswerWe're in ongoing conversations about Matter and Thread support it as a concept. We could support it with firmware updates, but we don't have anything concrete to share at this time.