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Does the Amazon Smart Thermostat require a C-wire?

Published: December 8th, 2023
1 min read
Last Updated: January 31st, 2025
Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required 1 Pack Thermostat only Thermostat only
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Yeah, the Amazon Smart Thermostat needs a C-wire (common wire) to work properly. This is mentioned in the manufacturer's product description. If you don't have one, you can either install a C-wire or use a power adapter kit that's sold separately.

This is important to keep the thermostat's smart features, like Wi-Fi and Alexa interaction, running smoothly. Our research shows this comes up a lot—both users and professional reviewers point out that the C-wire is key for performance.

If your home doesn't have a C-wire, you can either do some wiring work yourself or hire a pro. The manufacturer provides detailed instructions if you want to give it a try, but if you're not comfortable with electrical stuff, a professional might be the way to go. They'll make sure everything's set up safely and correctly.

So in short, yes, the Amazon Smart Thermostat does require a C-wire. If your current setup lacks one, you'll need to sort that out for the best experience.

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$55.99 at Amazon
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How we researched this

Where this comes from: This answer is based on ShopSavvy's product database, real-time pricing from 8 retailers, and a look at hundreds of user reviews to give you a well-rounded picture.

Where to Buy

Prices last updated: September 17th 2026 8:16 am

Considering the Amazon Smart Thermostat?

Here's our "TLDR" Review

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More Answers

If you're still curious about the Amazon Smart Thermostat, here are some other answers you might find interesting:

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Is the Amazon Smart Thermostat compatible with Alexa?

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