You’ve to check the compatibility of a thermostat with your home’s HVAC system before you buy the thermostat. We believe checking thermostat compatibility is very important for anyone buying a new thermostat or replacing an old model. If you don’t check thermostat compatibility, you might end up purchasing the wrong model. We’ve created a comprehensive thermostat compatibility guide covering almost all the current best-selling thermostat models.

Compatibility Guide for Smart Thermostats

Let’s begin with smart thermostats as they’re the best-selling models currently. Most people prefer to use smart thermostats these days as they are self-learning, save energy and can be controlled from anywhere via the internet.

Ecobee 4 & Ecobee 3 Lite

We’ve published a dedicated review of Ecobee 4 & Ecobee 3 Lite covering all aspects including compatibility. If you’re considering Ecobee thermostat, please go through our guide and get informed.

Ecobee Thermostat Compatibility

The table below explains the compatibility of Ecobee 4 and Ecobee 3 Lite with a wide variety of heating/cooling systems out there.

Nest 3rd Gen & Nest E

Nest thermostats are compatible with a wide range of HVAC systems, especially the Nest 3rd Generation Learning Thermostat. The table below explains Nest thermostat compatibility (Nest 3rd Gen and Nest E) with different types of heating/cooling systems. We’ve covered Nest 3rd Gen and Nest E thermostats in our complete review and comparison guide.

Emerson Sensi ST75

We’ve covered Emerson Sensi ST75 in a detailed review. The table below explains the compatibility of Emerson Sensi ST75 with different types of HVAC systems.

Honeywell RTH9585WF

This model from Honeywell, RTH9585WF is one of the best-selling WiFi thermostat models out there. We’ve listed the complete compatibility of the Honeywell RTH9585 thermostat model in the table below.

Compatibility for Line Voltage Thermostats

Thermostats are basically for two types of systems – low voltage and line voltage. Thermostats designed for line voltage systems (like baseboard heaters, connectors, etc) are not compatible to be used with low voltage systems (like central furnaces, heat pumps, boilers, etc). Similarly, thermostats designed for low-voltage systems can not be used with line voltage systems as well. You’ve to identify your home heating system first (if it’s a low voltage or line voltage system) before choosing your thermostat.

In the USA, 90% of homes are using low-voltage systems like a central furnace or a heat pump, or a boiler as their heating/cooling system. Only about 10% of homes are using line voltage systems like a baseboard heater or a forced fan heater or a convector or a radiant ceiling heater.

MySa – Smart Line Voltage Thermostat

MySa is a smart line voltage thermostat compatible with all commonly used high voltage systems. Complete compatibility is explained in the table below.

Winding up!

We’ve covered almost all best-selling thermostat models in our comprehensive thermostat compatibility guide. We will be adding newer models in the coming days. If we’ve missed an important model, please comment here. We shall add them shortly.


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