Honeywell 7-Day Universal Touchscreen Programmable Thermostat-RTH8500D at The Home Depot
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Model # RTH8500D

Internet # 100295793

7-Day Universal Touchscreen Programmable Thermostat

Honeywell 7-Day Universal Touchscreen Programmable Thermostat

This item has been discontinued.
The Home Depot no longer carries this specific product.

$128.95 / each
Item cannot be shipped to the following state(s): GU,VI


In Stock



Model # RTH8500D

Internet # 100295793

Some programmable thermostats are so difficult to program that people just put them on hold, defeating their purpose. Honeywell's Universal Touchscreen Thermostat is so easy to program, most people don't even use the manual. This easy-to-read, easy-to-use Universal thermostat works with virtually all system applications. Plus, you can save on heating/cooling costs if used as directed.

  • Extra large touchscreen display shows room temperature, set temperature, and current temperature all at once
  • Universal application - works with conventional and heat pump systems up to 2H/2C; it's one thermostat for nearly every application
  • Effortless menu-driven programming guides the user through the programming process, only showing necessary information and choices - eliminates unnecessary clutter
  • Separate programming for each day of the week - 4 periods per day
  • Battery free operation - option to power with heating/cooling system so you never have to change batteries again
  • Vacation hold - option to adjust your program and have it automatically resume to the normal settings in time for your return
  • Daylight saving time - adjusts the time automatically

Info & Guides

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Assembled Depth (in.)  3.25 in  Assembled Height (in.)  8.25 in 
Assembled Width (in.)  9 in  Batteries Included  No 
Battery Power Type  Lithium Ion  Battery Size  AAA 
Certifications and Listings  No Certifications or Listings  Color Family  Whites 
Display height (in.)  2.75  Display width (in.)  3.5 
ENERGY STAR Certified  No  Manufacturer Warranty  1 year limited warranty 
Number of HVAC Zones  Periods per Programmable Day 
Product Depth (in.)  1.5  Product Height (ft.)  4.75 
Product Width (in.)  Returnable  90-Day 
Shape  Rectangle  Thermostat Features  Automatic Heating/Cooling Changeover,Backlit,Battery Back-Up,Battery Operated,Daylight Savings Time Ready,Filter Monitor,Low Battery Indicator,Removable Interface,Touch Screen,Vacation Mode 
Thermostat Type  Heating and Cooling  Voltage (volts)  24 


Rated 4.3 out of 5 by 39 reviewers.
Rated 5 out of 5 by Very easy to program I bought this thermostat to replace an old non programmable unit. I've had it for about a month now and is very easy to program. I installed it in about ten minutes with no trouble whatsoever. Thanks for reading my review! May 15, 2013
Rated 4 out of 5 by Easy to program This thermostat was very easy to install and program and it has the feature I wanted the most - 7 days of 4 periods (wake, leave, return and sleep) heating. Many thermostats only have 5 days of 4 periods and only 2 periods on the weekends, however, I work weekends, so my old thermostat was impractical for me. However, I am a light sleeper and the thermostat has a "learn" feature in which it comes on in order to reach the desired temperature before I wake up in the morning. So if I want it to come on at 7, it actually comes on at 6. I still have to figure out how to have it come on when I wake up as opposed to earlier. Otherwise, it works very well and it is really easy to program. October 15, 2013
Rated 5 out of 5 by The thermostat was easy to install and it is very simple to operate. The thermostat is a 7 day programmable thermostat that allows 4 different time periods each day to be controlled. It is completely touch screen operated and has been easy to use. May 21, 2013
Rated 4 out of 5 by you can schedule everyday. It's great. You have to turn on the back light. It runs on the batteries. so it's dark and unreadable until you touch the screen. But as far as's great! June 4, 2014
Rated 5 out of 5 by High-end performance and easy installation Our HVAC installer wanted $400.00 for a unit with this capability. Instead, I just installed one of these for $120.00 in about 10 minutes. The interface is intuitive and the unit controls a variety of single and multi-stage gas, oil, hot water and electric heaters, heat pumps and air conditioners. Before you buy, Honeywell support will help you look at your current system to guarantee compatibility. The thing that makes this unit special is the ability to automatically switch between heating and cooling. A must have feature in Colorado. April 30, 2008
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