Shop for other Honeywell products.
Roll over image to magnify
Product Information

Honeywell RTH8500D 7-Day Touchscreen Programmable Thermostat

•Universal Application - works with conventional and heat pump systems up to 2H/2C, it's one thermostat for nearly every application
•Program is retained in memory in the event of a power outage Includes change reminders for filters and low batteries
•Separate programming for each day of the week - 4 periods per day
•Maximum comfort - Smart Response technology learns the amount of time a system needs to reach a desired temperature and adjusts accordingly
•Precise temperature control of +/-1 Degree for consistent comfort

Honeywell's touch screen 7-day programmable thermostat provides maximum flexibility for busy lifestyles. You set it up to adjust the temperature when you are away or asleep during times when you don't necessarily need to heat or cool your home to optimum comfort, and your heating and cooling equipment runs less. The RTH8500D features a green backlit touch screen interface with simplified programming and easy to follow text instead of symbols. Exclusive Honeywell Smart Response Technology continually adjusts the pre-heating/cooling of your home so you are comfortable at your programmed times. It also automatically determines if your home needs heating or cooling to provide maximum comfort. Universal compatibility means it works with virtually all system types.


  • 7-Day Programming — allows separate programming for each day
  • Display — straightforward display keeps operation and programming simple
  • Backlit Display — easy-to-read, even in dimly lit rooms and hallways
  • Smart Response Technology — continually adjust the pre-heating/cooling of your home so you are comfortable at your programmed times
  • Filter Change Reminder — keep your heating/cooling system operating at peak performance
  • Vacation Hold — option to adjust your program and have it automatically resume the normal settings in time for your return
  • Permanent Day and Time — your settings are always maintained; even during a power outage
  • Daylight Saving Time (optional) — adjusts the time automatically
  • Compatible — with heating and cooling plus heat pump systems
  • Does not work with electric baseboard heat (120-240 volts).
  • 1-year limited warranty

    Dimensions: 10" x 9" x 2", 15.2 oz.

Product Notes

View All Honeywell View All Air Management

Honeywell RTH8500D 7-Day Touchscreen Programmable Thermostat

291 reviews
$119.69 SALE

List: $146.29

RTH8500D 7-Day Touchscreen Programmable Thermostat
Currently Unavailable
Total: $0.00
Quantity: 0
Please pick a quantity to Add to Cart


Please choose which cart you want to add the item.

+ help

By choosing one of the above, you are able to shop for both yourself and a registrant at the same time. Once you are ready to checkout your items will be waiting for you in both your personal and registry shopping carts.

Still need assistance?

Please contact us at 1-855-OUR-CASA (1-855-687-2272)

Product Reviews And Resources We've collected resources from around the web to help you make your purchasing decisions.