![I am attempting to install an Amazon smart thermostat, but my current thermostat has two wires going into the W port. Any suggestions? : r/hvacadvice I am attempting to install an Amazon smart thermostat, but my current thermostat has two wires going into the W port. Any suggestions? : r/hvacadvice](https://i.redd.it/i-am-attempting-to-install-an-amazon-smart-thermostat-but-v0-b6l5oj4ddza81.jpg?width=3024&format=pjpg&auto=webp&s=1dd3b145e317ad5a30bb6cf22246270077989f64)
I am attempting to install an Amazon smart thermostat, but my current thermostat has two wires going into the W port. Any suggestions? : r/hvacadvice
![Two 2 wire Honeywell digital thermostat to replace mercury switch. Convert from mercury switch - YouTube Two 2 wire Honeywell digital thermostat to replace mercury switch. Convert from mercury switch - YouTube](https://i.ytimg.com/vi/YqTUSs56E7A/maxresdefault.jpg)
Two 2 wire Honeywell digital thermostat to replace mercury switch. Convert from mercury switch - YouTube
![C Wire Adapter 24 Volt Transformer Compatible with Nest Honeywell Ecobee Emerson Sensi Smart WiFi (White) - Amazon.com C Wire Adapter 24 Volt Transformer Compatible with Nest Honeywell Ecobee Emerson Sensi Smart WiFi (White) - Amazon.com](https://m.media-amazon.com/images/I/51TzaqDmfhL._AC_.jpg)
C Wire Adapter 24 Volt Transformer Compatible with Nest Honeywell Ecobee Emerson Sensi Smart WiFi (White) - Amazon.com
![My heat-only system only has two or three wires connected to the thermostat. Am I compatible with ecobee? My heat-only system only has two or three wires connected to the thermostat. Am I compatible with ecobee?](https://storage.googleapis.com/article_attachments/227874667/gasvalvediagram.png)
My heat-only system only has two or three wires connected to the thermostat. Am I compatible with ecobee?
![My heat-only system only has two or three wires connected to the thermostat. Am I compatible with ecobee? My heat-only system only has two or three wires connected to the thermostat. Am I compatible with ecobee?](https://storage.googleapis.com/article_attachments/227874667/Untitled_Diagram__10_.png)