“I have a older house. My thermostat is the old mercury switch type with only two wires. Just heat only no a/c. Can I use the nest thermostat.”

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• It depends if the system is compatible with Nest. You can check this link https://support.google.com/googlenest/answer/9246656?hl=en in order to determine if it's compatible. You can reach out to us for further assistance here: https://nest.com/support/contact-us/?from-chooser=true

  Answered by Nest Support 5 years ago

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• I purchased the Nest E thermostat to control my 2 wire (red and white low voltage wire) heat. Should work fine. Use the compatability checker. https://nest.com/works/

  Answered by DeeJayNY 5 years ago

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