Smart thermostat (24 V)
ecobee Smart Thermostat Enhanced
The same ecobee heat-pump logic — outdoor aux lockout, Pre-Heat recovery, dual fuel — with one stage of auxiliary heat, the Power Extender Kit, and room sensors sold separately.
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Best for
A heat pump with a single stage of backup heat, on a budget
Specifications
| Systems | 24 VAC; heat pump 2H/2C + 1 aux stage; dual fuel; up to 3H/2C |
|---|---|
| Heat pump controls | O/B (shared W2/OB terminal); outdoor aux lockout; compressor min outdoor temp |
| Early recovery | Pre-Heat / Pre-Cool |
| Outdoor temperature | Online weather |
| In the box | Power Extender Kit (sensors sold separately) |
| No C wire | Power Extender Kit (not dual-transformer or heat-only; drops accessory control) |
| Built in | Radar occupancy, humidity, temperature |
| Certification | ENERGY STAR |
| Warranty | 3-year limited; 5 years when installed by a pro |
Specifications as published by ecobee. Confirm against the current spec sheet before buying — manufacturers revise models without renaming them.
What's good
- The same outdoor aux lockout and Pre-Heat recovery as the Premium
- Dual fuel supported
- Power Extender Kit included, and a 5-year warranty with a professional install
What's not
- One stage of auxiliary heat only — a system with two aux stages needs the Premium
- No sensor in the box; SmartSensors are an extra purchase
- No speaker or air quality monitor (it works with Alexa and HomeKit as an integration)
Our verdict
Most single-stage-aux heat pumps don't need more thermostat than this. It has the two settings that protect a heat pump owner's bill and the PEK for a missing C wire. Step up to the Premium only for a second aux stage or the included sensor.
Compare with the alternatives
- ecobee Smart Thermostat Premium — a heat pump with electric backup, especially in a house where the thermostat's room isn't representative
- Google Nest Learning Thermostat (4th gen) — a heat pump home without a c wire that wants a remote sensor
- Mysa Smart Thermostat V2 for Electric Baseboard Heaters — one room of electric baseboard heat, replacing a dial or basic line-voltage thermostat