The Top 10 WiFi Thermostat Brands Ranked by System-type Support (October 2020)

Based on reviews posted on popular review sites as well as from Honeywell T5 Smart Thermostat's website, Honeywell T5 Smart Thermostat performs very well in terms of heater support relative to other smart thermostat brands.

The review site techhive.com gives Honeywell T5 Smart Thermostat excellent ratings for heater support in a review posted on its website. Here's a brief quote from this review:

The Lyric T5 requires the presence of the C wire coming from your HVAC system, but detailed instructions make for easy installation and setup. The Lyric T5 is compatible with a broad range of hardware, including single- and multi-stage heating and cooling systems, heat pumps with and without auxiliary heat, geothermal and hot-water heating, and 24-volt gas fireplaces. Unlike the Lyric Round, however, it does not support humidifiers, dehumidifiers, or ventilators. It also relies much more heavily on the Lyric mobile app; paradoxically, the T5’s much larger touchscreen makes it’s far easier to control from the thermostat itself. Given that the T5 is officially Honeywell’s “budget” thermostat, it works a little differently than the Round, which is directly competing with the Nest. The T5 essentially works one of two ways after you tell it your preferred temperature ranges. You can use it as a traditional thermostat, where you schedule your temperature needs via the app. This includes options for setting up a day-by-day heating/cooling schedule, a weekday/weekend schedule, or a whole week schedule. There are only four time slots per day—wake, home, away, and sleep—compared to the Lyric Round’s six.

The review site toptenreviews.com gives Honeywell T5 Smart Thermostat excellent ratings for heater support in a review posted on its website. Here's a brief quote from this review:

The Lyric T5 supports two-stage heating and cooling equipment, which means it works with most HVAC systems – though not as many as thermostats that support four heating stages. Unlike the Lyric Round, you can lock the T5’s screen to keep people from changing the temperature setting. You can also tell the thermostat how many heating or cooling cycles per hour it's allowed to run. This is an excellent way to conserve energy, but it means your home might not be as comfortable if you set a lower limit.

Learn more at the company's website.

You can also check out the top 10 wifi thermostat brands for heater support, or the overall best-performing smart thermostat brands on our main review grid.

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— reviewed Honeywell T5 Smart Thermostat on August 6, 2019, Read all 2 system-type support reviews.

Based on reviews posted on popular review sites as well as from Ecobee4's website, Ecobee4 performs very well in terms of heater support relative to other smart thermostat brands.

The review site thermostatguide.com gives Ecobee4 excellent ratings for heater support in a review posted on its website. Here's a brief quote from this review:

They work well with 24V HVAC systems like central furnace, boilers, heat pumps etc.

The review site moderncastle.com gives Ecobee4 excellent ratings for heater support in a review posted on its website. Here's a brief quote from this review:

The Ecobee4 is compatible with conventional (2H/2C), heat pump (H4/2C) including two-stage auxiliary heat, gas, oil, electric, or dual fuel systems. This model also supports added accessories, like humidifiers, dehumidifiers, ventilator, ERVs, or HRVs.

The review site amazon.com gives Ecobee4 excellent ratings for heater support in a review posted on its website. Here's a brief quote from this review:

The ecobee not only turns your A/C on when it’s hot and your heat on when it’s cold but it actually works (via internet) with your local weather service in real-time so it knows what’s going on outside your home as well as inside.

Learn more at the company's website.

You can also check out the top 10 smart thermostat brands for heater support, or the overall best-performing smart thermostat brands on our main review grid.

Looking for Ecobee4 coupons? Check out the latest deals here. Want more reviews on Ecobee4? Read a more in-depth review of Ecobee4 on this page.

— reviewed Ecobee Smart Thermostats on September 22, 2019, Read all 2 system-type support reviews.

Based on reviews posted on popular review sites as well as from Sensi Smart Thermostat's website, Sensi Smart Thermostat performs very well in terms of heater support relative to other smart thermostat brands.

The review site toptenreviews.com gives Sensi Smart Thermostat excellent ratings for heater support in a review posted on its website. Specifically, this reviewer pointed out the following:

The Sensi supports four-stage heating, so it has greater system flexibility than most programmable thermostats. Its temperature control options also include two-stage cooling to keep your home comfortable throughout the year. This unit has a temperature swing of 1 degree, which is comparable to the industry average.

Learn more at the company's website.

You can also check out the top 10 smart thermostat manufacturers for heater support, or the overall best-performing smart thermostat brands on our main review grid.

Looking for Sensi Smart Thermostat coupons? Check out the latest deals here. Want more reviews on Sensi Smart Thermostat? Read a more in-depth review of Sensi Smart Thermostat on this page.

— reviewed Emerson Sensi Smart Thermostat on August 11, 2019, Read all 2 system-type support reviews.