![Looking to install smart thermostat - Could this green wire be the common wire? Any way of easily identifying? (Heat only, steam radiators. Previous thermostat was battery powered) : r/homeautomation Looking to install smart thermostat - Could this green wire be the common wire? Any way of easily identifying? (Heat only, steam radiators. Previous thermostat was battery powered) : r/homeautomation](https://i.redd.it/moih5atsb1w51.jpg)
Looking to install smart thermostat - Could this green wire be the common wire? Any way of easily identifying? (Heat only, steam radiators. Previous thermostat was battery powered) : r/homeautomation
![Amazon.com: C Wire Accessory Common Wire Kit for Most 24 VAC Thermostats (4 to 5 Wires), White (1 Pack) : Tools & Home Improvement Amazon.com: C Wire Accessory Common Wire Kit for Most 24 VAC Thermostats (4 to 5 Wires), White (1 Pack) : Tools & Home Improvement](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/71XSABB637L.jpg)
Amazon.com: C Wire Accessory Common Wire Kit for Most 24 VAC Thermostats (4 to 5 Wires), White (1 Pack) : Tools & Home Improvement
![The Smart Thermostat C Wire Explained - What If You Don't Have One? | Smart thermostats, Thermostat wiring, Thermostat The Smart Thermostat C Wire Explained - What If You Don't Have One? | Smart thermostats, Thermostat wiring, Thermostat](https://i.pinimg.com/1200x/b7/72/f1/b772f151c7710879dd55c35cb464dc89.jpg)
The Smart Thermostat C Wire Explained - What If You Don't Have One? | Smart thermostats, Thermostat wiring, Thermostat
![Blue "C" wire is connected to "Y" on old thermostat. New thermostat has separate "C" hookup. Where does the blue wire go - "Y" or "C"? : r/Nest Blue "C" wire is connected to "Y" on old thermostat. New thermostat has separate "C" hookup. Where does the blue wire go - "Y" or "C"? : r/Nest](https://i.imgur.com/qa9UXyW.jpg)
Blue "C" wire is connected to "Y" on old thermostat. New thermostat has separate "C" hookup. Where does the blue wire go - "Y" or "C"? : r/Nest
![Honeywell Home C-Wire Adapter for Honeywell home Wi-Fi Thermostats and RedLINK® 8000 Series thermostats THP9045A1098 - Amazon.com Honeywell Home C-Wire Adapter for Honeywell home Wi-Fi Thermostats and RedLINK® 8000 Series thermostats THP9045A1098 - Amazon.com](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/71AjSMTbLJL._AC_UF350,350_QL80_.jpg)
Honeywell Home C-Wire Adapter for Honeywell home Wi-Fi Thermostats and RedLINK® 8000 Series thermostats THP9045A1098 - Amazon.com
![wiring - Can a thermostats C-wire be connected to the furnaces R-terminal without issues? - Home Improvement Stack Exchange wiring - Can a thermostats C-wire be connected to the furnaces R-terminal without issues? - Home Improvement Stack Exchange](https://i.stack.imgur.com/WkPtf.jpg)
wiring - Can a thermostats C-wire be connected to the furnaces R-terminal without issues? - Home Improvement Stack Exchange
![electrical - Where should I connect the C wire in a Janitrol furnace? - Home Improvement Stack Exchange electrical - Where should I connect the C wire in a Janitrol furnace? - Home Improvement Stack Exchange](https://i.stack.imgur.com/pEsK8.jpg)