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Thermostat Compatibility Guide

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Compatibility   ecobee3 lite Thermostat ecobee Enhanced Thermostat ecobee Premium Thermostat
Natural gas, oil or electric  

24VAC controls  

Conventional (Furnace and Air Conditioning) up to 2 stages of heat and
2 stages of cool
 

Conventional (Furnace and Air Conditioning) a single accessory, such as
a humidifier, dehumidifier, ventilator, HRV, ERV
 

Conventional (Furnace and Air Conditioning) single-speed fan control  

Heat pumps air-to-air and geothermal heat pumps  

Heat pumps up to 4 stages of heat (2 stage heat pump, 2 stage auxiliary heat) and two stages of cool

 

Heat pumps single-speed fan control
 

Boilers up to 2 stages of heat
If a C-wire isn’t present—C-wire must come from the air handler, not the boiler.
 

Boilers single accessory, such as a humidifier, dehumidifier, ventilator,
HRV, ERV
If a C-wire isn’t present—C-wire must come from the air handler, not the boiler.
 
 

Dual Transformer (Boiler and Air Conditioning) up to two stage of heat and two stages of cool
If a C-wire isn’t present—C-wire must come from the air handler, not the boiler.

 
 

Dual Transformer (Boiler and Air Conditioning) single accessory, such as
a humidifier, dehumidifier, ventilator, HRV, ERV
If a C-wire isn’t present—C-wire must come from the air handler,
not the boiler.

 
 

Dual Transformer (Boiler and Air Conditioning) Supports single-speed
fan control.
If a C-wire isn’t present—C-wire must come from the air handler, not the boiler.
 

Installation Help

Get more installation help with step by step videos and more.

Go to the ecobee Installation Page


Need more support?

Go to the ecobee Support Page


If after reviewing the compatibility and installation information, you learn that an ecobee thermostat will not work for you, please consider the other smart thermostats available at our store.