Step 3: Connect to the Furnace

Lance Marques connects the thermostat power wire to the furnace
Photo: Ryan Benyi
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Let your contractor hook up the new wire to the furnace and turn on the furnace's power. Now snap the thermostat's face onto the bracket. When it lights up, follow the prompts to set the temperatures you want the house to be when you wake up, leave for work, return home, and go to bed.
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    Tools List

    • flathead screwdriver
      Screwdriver
    • needlenose pliers
      Needlenose pliers
    • drill
      Drill/driver, for mounting the outdoor sensor

    Shopping List

    Programmable thermostat