Description
Product Overview
The ecobee Power Extender Kit (PEK) is a specialized accessory that simplifies the installation of ecobee Smart Thermostats in homes without a C or common wire. This compact, white device measures 2.44 x 2.44 x 0.9 inches and weighs 2.56 ounces, featuring a round shape and durable plastic construction. It operates with a 24 VAC system, supporting a current rating of 2 amps and an IP57 international protection rating for dust and water resistance. The kit includes a power extender unit with quick-connect terminals, a 1-way circuit, and 7 positions for reliable connectivity. Compatible with most ecobee Smart Thermostat models (excluding Essential and Lite versions), it ensures seamless integration into existing furnace setups, eliminating the need for costly electrical modifications.

Usage
This Power Extender Kit is ideal for residential heating systems that use 24 VAC furnaces but lack a C wire, common in older homes or certain HVAC configurations. It is suited for DIY enthusiasts and professional installers looking to upgrade to smart thermostats without rewiring. Typical usage includes installing ecobee thermostats in single-family homes, apartments, or small offices to enable Wi-Fi-based temperature control, scheduling, and energy monitoring. The kit is not compatible with millivolt, high voltage, dual transformer, fan coil, or communicating units, making it essential for verifying system compatibility via ecobee’s online tool before purchase.
Why Choose Us
ecobee’s Power Extender Kit stands out for its ease of use and cost-effectiveness, providing a certified solution that avoids the expense of hiring an electrician. Manufactured by ecobee, a trusted brand in smart home technology, it ensures high-quality materials and rigorous testing for safety and durability. The kit includes a QR code for instant access to detailed installation guides, reducing setup time and errors. Its compact design and reliable performance make it a preferred choice over generic alternatives, backed by positive customer reviews and a focus on user-friendly smart home integration.
Key Features
- Enables ecobee thermostat installation in homes without a C wire, saving on electrical upgrade costs.
- Compatible with 24 VAC furnace systems, ensuring stable power and preventing thermostat issues.
- Features quick-connect terminals and IP57 rating for easy, secure, and durable connections.
- Includes a QR code for step-by-step installation guidance, simplifying DIY setup.
- Works with most ecobee Smart Thermostat models, supporting Wi-Fi connectivity and smart controls.
FAQ
What is the ecobee Power Extender Kit used for?
The Power Extender Kit allows you to install an ecobee Smart Thermostat in homes that do not have a C or common wire, providing the necessary power without rewiring.
Is this kit compatible with all ecobee thermostats?
It works with most ecobee Smart Thermostat models, but is not compatible with the Smart Thermostat Essential or Smart Thermostat Lite versions.
How do I know if I need a Power Extender Kit?
Visit ecobee.com/compatibility and use their online tool to check your HVAC system’s requirements before purchasing.
Can I install the kit myself?
Yes, the kit includes an easy-to-follow guide accessible via QR code, making it suitable for DIY installation with basic tools.
What systems is the Power Extender Kit not compatible with?
It does not work with millivolt, high voltage, dual transformer, fan coil, or communicating HVAC units.




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