Best Smart Thermostats for included C-wire adapter

#1

The included power extender kit was specifically praised as a helpful addition for homes without an existing common wire.

#2

Reviewers liked that Ecobee includes a power extender/C-wire adapter option, especially for setups without a common wire.

#3

Reviewers noted the box is nearly complete, but the C-wire adapter is not included.

#4

The C-wire workaround is a weakness because the power extender kit is described as sold separately and required for homes without a C wire.

#5

A buyer without the needed power wiring was frustrated that the required adapter was sold separately rather than included in the box.