![heating - Wifi thermostat to replace old mechanical 2-wire 110V Honeywell? - Home Improvement Stack Exchange heating - Wifi thermostat to replace old mechanical 2-wire 110V Honeywell? - Home Improvement Stack Exchange](https://i.stack.imgur.com/YnlT0.jpg)
heating - Wifi thermostat to replace old mechanical 2-wire 110V Honeywell? - Home Improvement Stack Exchange
![Cadet F Series Double Pole Built-In Baseboard Thermostat Model: BTF2W, Part: 08734, 22 Amp, 120/208/240 Volt, White - Walmart.com Cadet F Series Double Pole Built-In Baseboard Thermostat Model: BTF2W, Part: 08734, 22 Amp, 120/208/240 Volt, White - Walmart.com](https://i5.walmartimages.com/asr/484cca66-74b5-4e36-a28c-46d5813d59da.9bfe118b55a3de120dc3c8645a7dd514.jpeg)
Cadet F Series Double Pole Built-In Baseboard Thermostat Model: BTF2W, Part: 08734, 22 Amp, 120/208/240 Volt, White - Walmart.com
![2 to 8 Wire All Thermostats Wiring Diagrams (Honeywell, Nest) in 2023 | Thermostat wiring, Thermostat, Electrical diagram 2 to 8 Wire All Thermostats Wiring Diagrams (Honeywell, Nest) in 2023 | Thermostat wiring, Thermostat, Electrical diagram](https://i.pinimg.com/originals/45/2d/cd/452dcd199d840f3929b6b52f03c0481b.png)
2 to 8 Wire All Thermostats Wiring Diagrams (Honeywell, Nest) in 2023 | Thermostat wiring, Thermostat, Electrical diagram
![Southwire 50-ft 18 / 2 Solid Thermostat Wire (By-the-roll) in the Thermostat Wire department at Lowes.com Southwire 50-ft 18 / 2 Solid Thermostat Wire (By-the-roll) in the Thermostat Wire department at Lowes.com](https://mobileimages.lowes.com/productimages/6c85def1-e217-42bf-a518-74ab9c86b87f/00469001.jpg)
Southwire 50-ft 18 / 2 Solid Thermostat Wire (By-the-roll) in the Thermostat Wire department at Lowes.com
![Old Honeywell 2 wire AC thermostat (with 1 extra wire behind) - can I modernize this with Ecobee? : r/ecobee Old Honeywell 2 wire AC thermostat (with 1 extra wire behind) - can I modernize this with Ecobee? : r/ecobee](https://i.redd.it/old-honeywell-2-wire-ac-thermostat-with-1-extra-wire-behind-v0-rure8of4hv2b1.jpg?width=3024&format=pjpg&auto=webp&s=9df111248d2d94a5587646e86b479512b160e3cd)
Old Honeywell 2 wire AC thermostat (with 1 extra wire behind) - can I modernize this with Ecobee? : r/ecobee
![Trying to replace this old 2 wire thermostat for a newer digital one. Problem is older unit does not have leads labeled or which cable is which. Any help on how to Trying to replace this old 2 wire thermostat for a newer digital one. Problem is older unit does not have leads labeled or which cable is which. Any help on how to](https://i.redd.it/j9mnonzn7nu91.jpg)
Trying to replace this old 2 wire thermostat for a newer digital one. Problem is older unit does not have leads labeled or which cable is which. Any help on how to
![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
![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/gasvalvefaststat.png)
My heat-only system only has two or three wires connected to the thermostat. Am I compatible with ecobee?
![wiring - How to figure out how to wire a 2 wire furnace to 3 wire thermostat - Home Improvement Stack Exchange wiring - How to figure out how to wire a 2 wire furnace to 3 wire thermostat - Home Improvement Stack Exchange](https://i.stack.imgur.com/2GD2h.jpg)