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Home New Items November 2025 New Items RTH20B Honeywell Home X2P Programmable Thermostat

RTH20B Honeywell Home X2P Programmable Thermostat

PART 868987
SUPPLIER RESIDEO LLC fka ADEMCO INC
SUPPLIER PART # RTH20B
RANK D
SHELF PACK 4
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About this item

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

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Brand Resideo Ademco
model Honeywell Home RTH20B/X2P
controlType Digital push-button
systemCompatibility 1 Heat/1 Cool
modes Heat;Cool;Auto;Off
scheduleOptions 5-2;5-1-1;7-day;Vacation
tempLowSetpoint 32 °F
powerSource 2 AA batteries
voltage 24 VAC
mounting UWP wall plate
display Backlit LCD
dimensions 3.43×5.13×1.17 in
weight 13 oz
warranty 1 year
includedAccessories wall plate, screws, anchors, user guide
notes Accent trim pieces included; no C-wire required
UPC Code 194159017832
Shelf Pack 4
Schedule B Number 9032100000
Country Of Origin Mexico
Minimum Order Qty 1
Supplier Name Ademco
Supplier Short Name Ademco
Supplier Address 1 263 Old Country Road
Supplier City Melville
Supplier State NY
Supplier Zip 11747-2712
Country US
Supplier Email djtryba@csmlink.com
Buyer Name Scott Snowden
Supplier Phone (763) 954-6562
Supplier Fax (877) 487-6721
Also Known As Resideo / First Alert
Drop Ship Ppd Freight $750.00
Drop Ship Order Min N/A
Return Policy Return to Wallace
Rep Name DJ Tryba
Rep Phone (303) 801-8609
Rep Cell (800) 881-7605
Rep Email djtryba@csmlink.com
Rep Agency Continental Sales and Marketing INC