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ecobee Thermostat Compatibility Guide

Compatibility	ecobee3	ecobee Smart Thermostat with voice control
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.	✓	✓

Still not sure if you have a compatible HVAC system? Call Connect to Save at (844) 577-SAVE or (844) 577-7283.

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