To learn more about the features of a smart thermostat and what models we recommend, read our review on the best smart thermostats below.
Top 5 Smart Thermostats
Best Voice Control: ecobee SmartThermostat with Voice Control Best Smart Home Compatibility: Emerson Sensi ST75 Touch Wi-Fi Smart Thermostat with Touchscreen Color Display Simplest Design: Google Nest Learning Thermostat Budget Pick: Emerson Sensi ST55 Wi-Fi Smart Thermostat for Smart Home Easiest Installation: Honeywell Home T9 WIFI Smart Thermostat
Best Voice Control: ecobee SmartThermostat with Voice Control
This smart thermostat from ecobee has a high price tag because of all of the smart features that come with it. You can control this thermostat in three ways—on the thermostat, through the mobile app, or with Alexa’s voice control.
Key Features
What Customers Are Saying
Some customers mentioned an easy installation, with some people hiring a professional installer and some customers installing the product on their own. Several reviewers were repeat ecobee customers who were upgrading their old ecobee with the newest generation. These repeat customers liked the addition of the sensor because it saved them from having to manually change the thermostat themselves. However, there were some customer complaints about the thermostat not sticking to the desired temperature.
Best Smart Home Compatibility: Emerson Sensi ST75 Touch Wi-Fi Smart Thermostat with Touchscreen Color Display
On top of enjoying this product’s smart home integration, you’ll receive a bonus of electricity savings. With this thermostat, you can save up to 23% annually on your electricity bills.
Key Features
What Customers Are Saying
What stood out about Emerson was the company’s customer service—while most customers said that installation was simple and could be completed by following the instructions in the owner’s manual and on the mobile app, customers who had trouble were able to contact a representative who would walk them through the rest of the process. Regarding complaints, some customers complained about the poor design of the app.
Simplest Design: Google Nest Learning Thermostat
Key Features
What Customers Are Saying
In terms of what customers liked about this smart thermostat, the simple design was a prime benefit. Customers also liked how the Nest thermostat came with all of the necessary materials for installation, including a screwdriver and optional backing plate. Common complaints from customers mentioned that the thermostat would disconnect from smart devices randomly and that it wouldn’t hold a charge. When these sorts of issues arose, customers struggled to get in touch with a customer service representative for assistance.
Budget Pick: Emerson Sensi ST55 Wi-Fi Smart Thermostat for Smart Home
Emerson’s ST55 thermostat looks like your standard thermostat, with buttons on its side and bottom to control the temperature in your home. However, this product is considered a smart thermostat because of features like compatibility with other devices and control through a mobile app. Compared to the other smart thermostats in this review, the Emerson Sensi ST55 is the most affordable and comes with a three-year warranty.
Key Features
Works with heating and air conditioning equipment in most homes (a C wire is required for heat-only, cool-only, and heat pump systems) Has a mobile app that allows you to remotely control the temperature from anywhere Installation takes 30 minutes or less Provides daily usage reports Comes with a three-year warranty
What Customers Are Saying
Customers can set up geofencing, scheduling, remote access, and other smart features that allow for complete control of their home’s temperature when they’re at home or away. This thermostat doesn’t require a C wire in most newer homes, which makes installation fast and easy. However, some customers complained that the thermostat would disconnect from the router and have trouble reconnecting.
Easiest Installation: Honeywell Home T9 WIFI Smart Thermostat
While most smart thermostats require connection to a C wire, the Honeywell Home T9 smart thermostat is easy to install and comes with an adapter that can be used in place of a C wire. Once the thermostat is installed, you have access to a variety of features, like temperature scheduling and alerts. For a wider range of features, you can purchase the model with a sensor to monitor the temperature of your home.
Key Features
What Customers Are Saying
Customers found the setup process for the Honeywell Home t9 smart thermostat to be easy. Once the thermostat was connected and an account was created through the Honeywell app, the screens walked customers through the rest of the setup process. Most customers said that the on-screen instructions were sufficient and that they didn’t need to consult the owner’s manual. Although Honeywell says you can connect the thermostat to a 5 GHz band, several customers reported that wasn’t the case and that it only worked when connected to a 2.4 GHz band.
Buying Guide
From HVAC compatibility to the installation process, here are a few important factors to consider before buying a smart thermostat for your home.
HVAC Compatibility
Not all smart thermostats will work with your heating and cooling system because of differing wiring requirements. Before you purchase a smart thermostat, visit the manufacturer’s website to check if it’s compatible with your type of HVAC system.
Electronics Compatibility
Installation
Most smart thermostat manufacturers claim that their devices are easy to install if you read the owner’s manual and watch the instructional videos. However, smart thermostat installation may get tricky in the absence of a common wire, or C wire. A C wire allows for a continuous flow of 24 VAC power to your thermostat. Most smart thermostats require a connection to this wire, but older homes with older HVAC systems often lack it. Some smart thermostat models, like Google Nest, can get by without a C wire by stealing power from other wires, but this can cause high-tech circuit boards to fail. If your HVAC system doesn’t have a C wire, you can either opt for a smart thermostat that doesn’t need this type of wire or consider hiring an electrician to install a C wire to make installation easier.
User Interface
Some smart thermostats will have touchscreen interfaces, while others will have more manual setups. We recommend reading customer reviews before purchasing one of these devices to determine what customers have said about how easy the interface is to use.
What makes a thermostat smart?
Though each smart thermostat will have different features, here’s a list of some of the common features included with one of these devices:
Remote temperature control and scheduling Touchscreen Voice command Email alerts Integration with smart home devices Sensors to determine when someone is home
What are the benefits of a smart thermostat?
One of the biggest benefits of a smart thermostat is that you can save money on your electricity bill in the long term. A smart thermostat is more efficient than traditional HVAC systems because of features like the automatic ability to turn the temperature up or down when no one is home. Another benefit of a smart thermostat is that you can remotely control the temperature when you’re away. With a standard thermostat, you can only manage the temperature in your home by manually adjusting the thermostat’s buttons.
How much do smart thermostats cost?
The average cost of a smart thermostat is between $100–$250. While this may seem like a lot, smart thermostats can typically pay for themselves in a few years by saving you money on monthly heating and cooling costs.
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