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Two 2 wire Honeywell digital thermostat to replace mercury switch. Convert from mercury switch - YouTube
![2 to 8 Wire All Thermostats Wiring Diagrams (Honeywell, Nest) | Thermostat wiring, Thermostat, Electrical diagram 2 to 8 Wire All Thermostats Wiring Diagrams (Honeywell, Nest) | 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) | Thermostat wiring, Thermostat, Electrical diagram
I am replacing an old Honeywell thermostat heat only. The wires are not labeled and no label on the terminal. What would the brass terminal wire color be and what color would
![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
![I currently have 2 wires coming from furnace. Ecobee says: Based on your wiring selection of Rh and W or W1 your home is compatible with ecobee, but you will need to I currently have 2 wires coming from furnace. Ecobee says: Based on your wiring selection of Rh and W or W1 your home is compatible with ecobee, but you will need to](https://preview.redd.it/rfv8w700xryz.jpg?width=640&crop=smart&auto=webp&s=486a23a998541bc1db46f9057315455e3b5411e8)
I currently have 2 wires coming from furnace. Ecobee says: Based on your wiring selection of Rh and W or W1 your home is compatible with ecobee, but you will need to
![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)
wiring - How to figure out how to wire a 2 wire furnace to 3 wire thermostat - Home Improvement Stack Exchange
![Installing new 2-wire (Single Pole) Thermostats - how to install when there are 3 wires in wall? - Home Improvement Stack Exchange Installing new 2-wire (Single Pole) Thermostats - how to install when there are 3 wires in wall? - Home Improvement Stack Exchange](https://i.stack.imgur.com/JmTci.jpg)
Installing new 2-wire (Single Pole) Thermostats - how to install when there are 3 wires in wall? - Home Improvement Stack Exchange
![Southwire 18/2 Thermostat Wire - 18 Gauge 2 Conductor - 25 Foot: Amazon.com: Tools & Home Improvement Southwire 18/2 Thermostat Wire - 18 Gauge 2 Conductor - 25 Foot: Amazon.com: Tools & Home Improvement](https://m.media-amazon.com/images/I/312wSAcQVsL.jpg)
Southwire 18/2 Thermostat Wire - 18 Gauge 2 Conductor - 25 Foot: Amazon.com: Tools & Home Improvement
![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
![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://preview.redd.it/old-honeywell-2-wire-ac-thermostat-with-1-extra-wire-behind-v0-zgb7bnf4hv2b1.jpg?width=640&crop=smart&auto=webp&s=5777ab68b14bb9f1cbf026f907503bf83066d26f)