Honeywell Home CWIREADPTR C-Wire Power Adapter Check Availability

  • The C-Wire Power Adapter makes Honeywell Home smart thermostats compatible with most homes that don’t have a common wire. 
  • Quickly and easily power connected thermostats that require a c-wire. 
  • Use for Wi-Fi, 24v Honeywell Home thermostats when a common wire is needed but not present. Note, your home may have an unused C-Wire that should be verified before purchasing this adapter. 
  • Easy push terminals and an adhesive mount make installation quick and easy. 
  • Simple adhesive mount allows you to attach the adapter to the outside of your furnace. 
  • Be discreet with a closed cover to conceal internal components and wires. The sleek, modern Honeywell Home exterior keeps the installation site clean and professional. 
  • COMPATIBLE WITH: Forced air (gas, oil or electric), hot water and steam, and heat pumps with electric backup. Does NOT work with electric baseboard heat (120-240V). 

  • Before purchasing, check to see if the Wi-Fi thermostat you will pair with this adapter is compatible with your home and determine if your home needs a C-wire power adapter. The C-wire adapter should work for all applications in which the thermostat being replaced doesn't have a common wire and does have Y and G wires attached.
  • NOTE: The C-Wire Adapter will work with multi-stage systems including heat pumps if your Wi-Fi thermostat will work with these systems; however, please follow the installation directions carefully to avoid disconnecting incorrect wires.