- Installation Requirement: A C-wire (common wire) is required. Homes without one may need a compatible C-wire adapter.
- ENERGY STAR Certified for verified energy savings.
- Remote control and monitoring via a dedicated mobile app.
- Seamless voice control integration with Amazon Alexa, Google Assistant, and Apple Home ecosystems.
- Dual-band Wi-Fi connectivity (2.4 GHz and 5 GHz) for reliable network performance.
- Large, high-visibility display with easy-to-read font.
- Simplified user interface designed for effortless navigation and control.
- Customizable idle screen to personalize the thermostat’s appearance.
- Integrated humidity sensor for real-time monitoring of indoor humidity levels.
- Automated filter change reminders to maintain optimal air filtration and system performance.
- Total flex scheduling, allowing for highly personalized temperature programs.
- Geofencing technology for automatic temperature adjustments based on location.
- Optional vacation mode to conserve energy while away from home.
- UWP wall plate for streamlined installation and future system upgrades.
- Does not work with electric baseboard heat (120-240V).
Product Details
- Control: Connect to Wi-Fi using the First Alert by Resideo app – also compatible with Google Assistant, Apple Home Kit, and Amazon Alexa.
- Compatibility: Up to 2 heat / 2 cool conventional, up to 2 heat / 1 cool heat pump with electric backup, hot water heat, forced air (gas, oil, or electric). Does not work with electric baseboard heat (120-240V).
- Modes of Operation: Heat, Emergency Heat, Cool, Auto, Off
- Displayed Information: Mode, Current Temperature, Set Temperature, Status Display, Fan
- Alerts: Battery Replacement, Heat Pump Failure, Memory Error, Sensor Error, Filter Change
- Product Dimensions (WxDxH): 5.13 x 1.18 x 3.44 in.
- Warranty: 2 Year Limited
Honeywell Home X Series Thermostats
| X Series Model ComparisonChart |
X2S Smart Thermostat |
X2P Programmable Thermostats |
X1N Non-Programmable Thermostat |
| Model Numbers | RTH2CWF | RTH20B, RTH21B, RTH22B | RTH11B |
| Large screen & clear font | |||
| Change filter reminder | |||
| UWP® wall plate | |||
| Flexible scheduling | |||
| Smart WiFi connected | |||
| ENERGY STAR® certified | |||
| Models being replaced | RTH6580 | RTH6360, RTH2510, RTH2410, RTH2300, RTH221 | RTH5160 |
| Scheduling | Flexible: 7 day, 5-1-1 day, 5-2 day or 1 week options | Flexible: 7 day, 5-1-1 day, 5-2 day or 1 week options | No scheduling, non-programmable |
| Stages | 2 heat/1 cool, heat pump/conventional | 2 heat/1 cool, heat pump/conventional | 1 heat/1 cool |
| Power | Hardwire, C-wire required | Battery powered (2 AA) | Battery powered (2 AA) |
| Display Size | 4.84 sq. in. | 4.84 sq. in. | 4.09 sq. in. |
| Display format | Bright display, optional always-on backlight | Backlight display | Backlight display |
| View The X2S Thermostat | View The X2P Thermostat | View The X1N Thermostat |
Product SpecsUPC:194159017399MPN:RTH2CWF/NCategory:ThermostatsProduct Manuals
- Honeywell Home X2S Smart Thermostat Manual
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