5-2 Day Programmable Thermostat (RTH2300B1038)

This 5-2 Day Programmable Thermostat is for low volt heating/cooling systems. It features a large backlit display and precision temperature control. As thermostats go, it’s easy to install and use.
Verify compatibility with your home heating and cooling system, remove your existing thermostat and follow step-by-step instructions for installation.
The thermostat for low volt with high expectations for performance

You like the idea of a thermostat you can program for weekdays and weekends, but you have a low volt heating and cooling system. This 5-2 Day Programmable Thermostat is for you. It’s compatible with several types of low volt heating/cooling systems. Plus, it comes with features like weekday/weekend programming and a backlit display for easy operation.

  • Weekday/weekend programming (plus up to four periods per day)
  • Filter changer reminder
  • Easy to use
  • Backlit display
  • One-year limited warranty
  • DIY installation
Precision Temperature Control
Within +/-1 degree F for maximum comfort
  • Model number: RTH2300B1038
  • Color: White
  • Dimensions: 4-3/4 in. wide x 3-3/8 in. high x 1-1/8 in. deep

Compatible with systems

  • This thermostat is compatible with low volt heating/cooling systems, including millivolt and single-stage heat pumps without auxiliary heat.
  • It is not compatible with heat pump systems with backup heat or electric baseboard heat (120/240V).

Follow the quick installation guide that comes with the 5-2 Day Programmable Thermostat RTH2300B1038. If you misplaced this guide, you can find it in the resources section below. Installation is fast and easy. Remove your old thermostat, but be sure to label the wires. Install and wire your new thermostat. Set your new thermostat to match your heating/cooling system.


Download PDF
5-2 Day Programmable Thermostat Owner's Manual
Model: RTH2300,RTH221
Download PDF
5-2 Day Programmable Thermostat Owner's Manual
Model: RTH2300,RTH221

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