Price: $24.99
(as of Mar 31,2025 17:24:22 UTC – Details)

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.
The Power Extender (PEK) is an easy, cost-effective solution for homes without a C or common wire.
No tools needed. Enjoy quick and hassle-free PEK installation with magnetic mounting that sticks to your furnace.
Access the easy-to-follow installation guide by scanning QR code on the box.
Not sure if you need a PEK for your ecobee Smart Thermostat? Visit ecobee.com/compatibility to find out.
Designed exclusively for ecobee Smart Thermostats: Premium, Enhanced, Essential, Lite, ecobee3 Lite, Smart Thermostat with voice control, and ecobee4.
Works with 24 VAC systems only. Not compatible with millivolt, high voltage systems, dual transformer, fan coil, or communicating units.