Smart thermostats are usually the first home automation device people purchase because they help save money on utility bills. The ROI for a smart thermostat is only a couple of years and utilities often provide rebates that shortens that period.
Most home HVAC systems work with 24-volt (low voltage) thermostats, like the Nest, Ecobee, and Honeywell.
Electric baseboard and some radiant flooring systems require line voltage (120V) thermostats.
We’ve spent a lot of time reading about and testing the various smart thermostats on the market. We recommend that most people consider the Nest or Ecobee thermostats.
If you need a line voltage thermostat, we recommend the Mysa or Stelpro thermostats.
Our impartial reviews of the different smart thermostats on the market are listed below.
The ecobee4 and ecobee3 lite are highly recommended Wi-Fi smart thermostats. They are relatively easy to set up and will start saving you money on your energy bills right away. Both units work with popular voice assistants and the ecobee4 include built-in Amazon Alexa.
The Nest Thermostats (3rd Gen and E) are great Wi-Fi thermostats that are easy to install and use, plus they are aesthetically appealing. Most importantly, they will save you money on your utility bills. The Nests are a great option if you don't have a common wire.
The Honeywell Round Smart Thermostat (Second Generation) is a great option for keeping your home comfortable. The T5+ Smart Thermostat is also a great money-saving option. Both thermostats are easy to setup and will save you money on your utility bills. They are one of the few thermostats that work with Apple HomeKit.
The Stelpro Maestro smart thermostats are a great money-saving addition to line voltage heating systems like electric baseboard heaters. This review covers both the Controller-Thermostat as well as the Thermostat. Now, you can have a smart thermostat even if you have electric baseboard heat.
The Mysa Line Voltage Thermostat is one of the few smart thermostats for electric baseboard heaters. It is a relatively new product and has already proved to be one of the best options for those who want to monitor and control their line voltage heating system while away.
The LUX Kono and Geo are basic smart thermostats that are less expensive than their competitors, yet still have many of the features you need. They might be for you if you don't need all of the bells and whistles of the more expensive models. Both link to HomeKit, Alexa, and the Google Assistant.