5-2 Day Programmable Thermostat RTH4300B

DIY Install
A basic thermostat for people looking for weekday/weekend programming and simple basic features that promote comfort, convenience and savings.
Verify compatibility with your home heating and cooling system, remove your existing thermostat and follow step-by-step instructions for installation.
A basic thermostat with the quality and reputation of Honeywell

Our 5-2 Day Programmable Thermostat has the quality and reputation of Honeywell known the world over. This thermostat offers weekday/weekend programming, along with basic features that contribute to comfort, convenience and simplicity. This model is only available in Canada.

  • Programming (program week, weekend and up to four periods per day)
  • Easy to use
  • Backlit display
  • Simple pull-out instruction manual
  • One-year limited warranty
  • Available in Canada only
  • DIY installation
Precision Temperature Control
Within +/-1 degree F for maximum comfort
Model/Sku #
Model number: RTH4300B

Compatible with systems

  • This thermostat is compatible with heating and cooling systems, plus some heat pumps.
  • It is not compatible with heat pump systems with backup heat, multi-stage heating/cooling systems and electric baseboard heat (120/240V).

Follow the quick installation guide that comes with the 5-2 Programmable Thermostat — RTH4300B. 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.