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wiring - Can a thermostats C-wire be connected to the furnaces R-terminal without issues? - Home Improvement Stack Exchange
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Google Nest Power Connector - C-Wire Substitute - Compatible with Nest thermostats GA02493-US - The Home Depot
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Amazon.com: C Wire Accessory Common Wire Kit for Most 24 VAC Thermostats (4 to 5 Wires), White (1 Pack) : Tools & Home Improvement
![hvac - Can I use this unused blue wire as my C wire for my new Nest thermostat? - Home Improvement Stack Exchange hvac - Can I use this unused blue wire as my C wire for my new Nest thermostat? - Home Improvement Stack Exchange](https://i.stack.imgur.com/IpvcC.jpg)
hvac - Can I use this unused blue wire as my C wire for my new Nest thermostat? - Home Improvement Stack Exchange
![Google Nest Power Connector - C-Wire Substitute - Compatible with Nest thermostats GA02493-US - The Home Depot Google Nest Power Connector - C-Wire Substitute - Compatible with Nest thermostats GA02493-US - The Home Depot](https://cf-images.us-east-1.prod.boltdns.net/v1/jit/1834613806001/be7891c1-bbb0-4ba3-b0b7-1071cf8ab7f9/main/1280x720/47s232ms/match/image.jpg?pubId=66036796001)