The Honeywell Home RTH20B (X2P) is a user-friendly, single-stage programmable thermostat offering flexible 5-2 day scheduling. It features a large backlit display, customizable filter reminders, and versatile compatibility with most low-voltage heating/cooling systems. Ideal for energy-conscious homeowners and DIY installations.

Key Features

• 5-2 Day Programming: Separate weekday/weekend schedules
• Backlit Display: High-contrast, easy-to-read screen
• Custom Alerts: Filter reminders and battery change notifications
• Universal Wall Plate: Easy installation and future upgrades
• Battery Operated: Runs on two AA batteries (no C-wire typically needed)
• Low-Heat Setpoint: Down to 32 °F for enhanced freeze protection
• Interchangeable Accents: Customize appearance with white or gray plates
• 1-Year Warranty

Specifications

• Model: RTH20B/X2P
• Control Type: Digital push-button interface
• System Compatibility: 1 Heat / 1 Cool (conventional or heat pump); not for electric baseboard (120–240 V)
• Programming Options: 5-2, 7-day, 5-1-1, or non-programmable mode
• Display: Backlit LCD
• Alerts: Filter reminder, low battery, system errors
• Power Source: 2× AA batteries (not included)
• Mounting: UWP® universal wall plate with screws & anchors
• Temperature Range: 32 °F low limit
• Dimensions: Approx. 3.44″ × 5.13″ × 1.17″
• Weight: ~0.82 lb
• Warranty: 1 year

Applications

• Residential single-stage HVAC systems
• Ideal for energy-aware households seeking schedule-based control
• Perfect for DIY-friendly installs—no common wire typically required
• Well-suited to rental properties or simple heating/cooling setups