And if you live in an older home or one without a C-wire, shopping for a smart thermostat can be challenging. Thankfully, there are a handful of great smart thermostats that don’t require a C-wire.

The Nest Thermostat E is kind of a hidden gem ... It’s compatible with most 24V HVAC systems and often works without a C-wire, which is a huge plus if you're in a rental and don’t want ...

The Google Home app’s step-by-step guidance made it easy, and the thermostat even worked without a C-wire, or common wire, a typical requirement for other smart thermostats to provide a ...

If you already have a C-wire adapter, you can purchase the Amazon Smart Thermostat without the included adapter for a lower price. Though most smart thermostats sport a similar interactive design ...

If you have an older furnace system without a C-wire, it will likely work with a Nest Learning Thermostat, but not so much with the new 2020 Nest Thermostat. While Nest Thermostats are easy to ...

Installation was a complete breeze in our tests; it was more work getting the old thermostat out than getting the new one in. The one hiccup was that without a C-wire, we had to wait overnight for ...

Shopping for a smart thermostat that works with the new Matter standard? There aren’t many to choose from, but now you’ve got one more option. Smart home manufacturer Meross has just unleashed ...

If your current thermostat wiring doesn’t include a C-Wire, which feeds power to a thermostat without needing a built-in battery, Amazon bundles an adapter from Honeywell Home for $74.99.

Ecobee's new midrange thermostat, the Smart Thermostat Enhanced, has me a bit stumped. At $190, it has the same updated design as the high-end Smart Thermostat Premium, but few of the luxury features.

Unlock to see our ratings and compare products side by side The primary power for this thermostat is supplied via c wire (24vac). A "C" wire is not required if using power extender kit.