Honeywell Home Compatibility Guide
| Compatibility | Wi-Fi 7-day programmable thermostat | Wi-Fi color touch thermostat | T5 smart thermostat | T9 smart thermostat with sensor |
| Natural gas, oil or electric |
gas & oil only |
gas & oil only |
✓ |
✓ |
| 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 |
✓ |
✓ |
1 stage AUX heat |
✓ |
|
Heat pumps single-speed fan control
|
✓ |
✓ |
✓ |
✓ |
|
Boilers up to 2 stages of heat |
✓ |
✓ |
✓ |
✓ |
| 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 |
|
|
|
|
|
Dual transformer (boiler and air conditioning) single accessory, such as |
|
|
|
|
| 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 Honeywell Home installation page
Need more support?
Go to the Honeywell Home 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.