![Need help with smart thermostat options. opened the current thermostat and there are only two wires. what are my options when wanting to install a smart thermostat. : r/smarthome Need help with smart thermostat options. opened the current thermostat and there are only two wires. what are my options when wanting to install a smart thermostat. : r/smarthome](https://preview.redd.it/fsdyk3gw8l961.jpg?auto=webp&s=122326bb703b88450851b6ee64e7769abe581cdf)
Need help with smart thermostat options. opened the current thermostat and there are only two wires. what are my options when wanting to install a smart thermostat. : r/smarthome
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Two 2 wire Honeywell digital thermostat to replace mercury switch. Convert from mercury switch - YouTube
![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
![Best smart thermostat for my heating system? Looking for recommendations that will work for this system. It appears to be lacking a “c” wire and I do not see any other wires Best smart thermostat for my heating system? Looking for recommendations that will work for this system. It appears to be lacking a “c” wire and I do not see any other wires](https://preview.redd.it/ikgxuq2s5k981.jpg?width=640&crop=smart&auto=webp&s=fb3679648b5ff176cb622df1164203b584dd58e4)
Best smart thermostat for my heating system? Looking for recommendations that will work for this system. It appears to be lacking a “c” wire and I do not see any other wires
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wiring - 2 wire thermostat wire want to be able to select fan only - Home Improvement Stack Exchange
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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
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Installing new 2-wire (Single Pole) Thermostats - how to install when there are 3 wires in wall? - Home Improvement Stack Exchange
![Honeywell TH1100DV1000 Pro-Digital 2-Wire Heat Only . Part Number: TH1100DV1000test | Shop Thermostats Honeywell TH1100DV1000 Pro-Digital 2-Wire Heat Only . Part Number: TH1100DV1000test | Shop Thermostats](https://www.shopthermostats.com/wp-content/uploads/2015/12/TH1100DV-c1.jpg)