Make any home an ecobee Smart Thermostat home with the Power Extender Kit (PEK) – a cost-effective and efficient solution for homes without a common wire (C-wire). Not sure if you need a PEK? Visit ecobee.com/compatibility to find out.
Q: What type of systems is the Power Extender Kit compatible with?
A: The Power Extender Kit is designed for use with 24 VAC systems only and is not compatible with millivolt, high voltage systems, dual transformer, fan coil, or communicating units.
Q: How do I know if I need the Power Extender Kit for my home?
A: You can visit ecobee.com/compatibility to determine if your home requires the Power Extender Kit.
Q: Does the Power Extender Kit work with all ecobee thermostats?
A: The Power Extender Kit is designed to work exclusively with ecobee Smart Thermostats.
Q: How is the Power Extender Kit installed?
A: The Power Extender Kit has a magnetic backing, allowing for easy mounting near the control board.
Q: Are any tools required for the installation of the Power Extender Kit?
A: No, the Power Extender Kit comes with everything you need for installation and requires no additional tools.
Q: What is the ecobee Power Extender Kit used for?
A: The ecobee Power Extender Kit is a cost-effective solution for homes that do not have a common wire (C-wire) but want to use an ecobee smart thermostat.
A: Thanks for reaching out. Our Power Extender Kit is only compatible with ecobee smart thermostats.
A: Thanks for reaching out! It sounds like you may have a heat-only system, if you only have two wires. If this is the case, the PEK is not compatible, our PEK requires a "Y" wire, which connects to a compressor. We'd love to support you further with this! Can you reach out so we can determine the best solution for creating a "C" connection, which will be required to use an ecobee. You can give us a call at 1-877-932-6233 (or 647-428-2220 if you’re outside North America). Our team is also online Monday to Friday from 8 am to 11 pm EST, Saturday and Sunday from 9am to 9pm EST to answer your questions at https://support.ecobee.com/s/contactsupport
This product doesn't have any reviews yet.

Make any home an ecobee Smart Thermostat home with the Power Extender Kit (PEK) – a cost-effective and efficient solution for homes without a common wire (C-wire). Not sure if you need a PEK? Visit ecobee.com/compatibility to find out.

ecobee Smart Thermostat Premium optimizes comfort while saving energy through superior intelligence and technology. It has a built-in air quality monitor, doorbell Live View, smoke alarm detection, and geofencing technology to understand occupancy. Included SmartSensor eliminates hot and cold spots and adjusts the temperature in the rooms that matter most. Works with Siri*, Alexa, Google Assistant, HomeKit, and SmartThings. *Apple home hub required to enable Siri.

The C-Wire provides a continuous flow of power to operate more advanced 24-Volt thermostats and is most often needed when upgrading to Wi-Fi and wireless thermostats. The C-Wire Power Adapter converts existing thermostat wires to common wires (C-Wires) to help make Honeywell Home Smart Thermostats compatible with homes that may be missing this "common" wire. Features easy push terminals and an adhesive mount to attach the adapter to the outside of your furnace, while a closed cover conceals internal components — making installation quick and easy.

Join the millions who love and trust ecobee products with our most affordable thermostat yet: Smart Thermostat Essential. It saves you up to 23%* on your energy bills and is so efficient that it pays for itself in just six months. You'll love how easy it is to use and control, and with effortless installation, you can set it and forget it. *Compared to a hold of 72°F
| Pros for Power Extender Kit (PEK) – C-wire adapter for ecobee Smart Thermostats - White | |||
|---|---|---|---|
| There were no pros for this product— | Overall Performance, Ease of Use, Installation, Design, Air Quality Monitoring | There were no pros for this product— | Ease of Use, Overall Performance, Design, Installation, App Usability |
| Cons for Power Extender Kit (PEK) – C-wire adapter for ecobee Smart Thermostats - White | |||
| There were no cons for this product— | Compatibility, Accuracy | There were no cons for this product— | There were no cons for this product— |