![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/227874667/24vactransformer.png)
My heat-only system only has two or three wires connected to the thermostat. Am I compatible with ecobee?
![electrical - Can you use 1 ecobee thermostat to control 2 zone valves for heating? - Home Improvement Stack Exchange electrical - Can you use 1 ecobee thermostat to control 2 zone valves for heating? - Home Improvement Stack Exchange](https://i.stack.imgur.com/kcj6N.png)
electrical - Can you use 1 ecobee thermostat to control 2 zone valves for heating? - Home Improvement Stack Exchange
![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/rwcdiagram.png)
My heat-only system only has two or three wires connected to the thermostat. Am I compatible with ecobee?
![Anyone have experience using a FAST-STAT adapter to upgrade only one of multiple zones? Would my thinking work? Anytime I've seen the solution for my system (2nd picture with link) they've put Anyone have experience using a FAST-STAT adapter to upgrade only one of multiple zones? Would my thinking work? Anytime I've seen the solution for my system (2nd picture with link) they've put](https://preview.redd.it/3mj3ge817qw51.jpg?width=640&crop=smart&auto=webp&s=59fe6c02d55f4306dc4cad69d1d03dd20afc6e2b)
Anyone have experience using a FAST-STAT adapter to upgrade only one of multiple zones? Would my thinking work? Anytime I've seen the solution for my system (2nd picture with link) they've put
![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)