![How to Install Ecobee3 Lite Smart Thermostat || Without C Wire || Upgrading My Thermostats - YouTube How to Install Ecobee3 Lite Smart Thermostat || Without C Wire || Upgrading My Thermostats - YouTube](https://i.ytimg.com/vi/FCQjfsIGtME/maxresdefault.jpg)
How to Install Ecobee3 Lite Smart Thermostat || Without C Wire || Upgrading My Thermostats - YouTube
![MoesGo Programmable WiFi Smart Thermostat for Home, No C-Wire Required by C- Wire Adapter, with Zone Remote Sensor, Remote Control Tuya/Smart Life, Compatible with Alexa and Google Assistant, 24VAC - Amazon.com MoesGo Programmable WiFi Smart Thermostat for Home, No C-Wire Required by C- Wire Adapter, with Zone Remote Sensor, Remote Control Tuya/Smart Life, Compatible with Alexa and Google Assistant, 24VAC - Amazon.com](https://m.media-amazon.com/images/I/41D0NiyCA4L._AC_.jpg)
MoesGo Programmable WiFi Smart Thermostat for Home, No C-Wire Required by C- Wire Adapter, with Zone Remote Sensor, Remote Control Tuya/Smart Life, Compatible with Alexa and Google Assistant, 24VAC - Amazon.com
![The Smart Thermostat C Wire Explained - What If You Don't Have One? | Smart thermostats, Thermostat wiring, Home thermostat The Smart Thermostat C Wire Explained - What If You Don't Have One? | Smart thermostats, Thermostat wiring, Home thermostat](https://i.pinimg.com/736x/b7/72/f1/b772f151c7710879dd55c35cb464dc89.jpg)
The Smart Thermostat C Wire Explained - What If You Don't Have One? | Smart thermostats, Thermostat wiring, Home thermostat
![Does anyone know I can install a smart thermostat without additional wiring? How can I tell if the blue wire is the C wire? It's an air handler for a/c only. : Does anyone know I can install a smart thermostat without additional wiring? How can I tell if the blue wire is the C wire? It's an air handler for a/c only. :](https://preview.redd.it/x4o2gcbyfym91.jpg?width=640&crop=smart&auto=webp&s=31429b7c9e94f8a7ccdf5cba3a8bf9bc94e7629e)