Honeywell RTH6580WF Review

The Honeywell RTH6580WF Wi-Fi 7-Day Programmable Thermostat is a versatile and user-friendly device that offers a range of features to enhance the control and convenience of your home heating and cooling system. Here are some key features of this thermostat:

  • Wi-Fi Connectivity: The thermostat is equipped with Wi-Fi connectivity, allowing you to control the temperature of your home from anywhere using your smartphone or other smart devices.
  • Free App: The free app provided by Honeywell is easy to use and gives you the flexibility to adjust the thermostat settings based on your schedule. You can also receive intelligent alerts, such as high/low temperature notifications and loss of connection to the Wi-Fi network.
  • Smart Home Integration: The thermostat is compatible with various smart home platforms, including Alexa, Google Assistant, Samsung SmartThings, and IFTTT, allowing you to integrate it seamlessly into your existing smart home ecosystem.
  • 7-Day Programming: The thermostat features 7-day programming, allowing you to set a different schedule for each day of the week. This feature enables the thermostat to automatically adjust the temperature based on your preferences.
  • Large Display: The thermostat is equipped with a large, easy-to-read digital display, making it easy to view and adjust the temperature settings.
  • Weather Information: The thermostat allows you to view local weather from the web portal or app, helping you plan your day better based on the weather conditions.
  • Compatibility: The thermostat works with common 24 volt systems such as forced air, hydronic, heat pump, oil, gas, and electric. It will not work with millivolt systems or with 120/240 volt systems.
Honeywell RTH6580WF thermostat

Pros and Cons


  • Affordable price point compared to similar “smart” thermostats
  • Easy DIY installation with included C-wire adapter
  • Intuitive software walks you through setup steps
  • Remote access and control from iOS/Android apps
  • Monochrome display clearly shows key info
  • Automatic schedule adjustment saves significantly on bills
  • Robust programming options for different user needs
  • Backed by established brand with reputation for reliability


  • Lacks auto-adjusting based on occupancy patterns
  • Web portal responsiveness can be spotty at times
  • More capable models offer additional “smart” features
  • No built-in way to lockout local thermostat controls
  • Desired usage data not provided through apps/portal
  • Temperature swing outside set point before system activation

My Quest for the Perfect Budget Smart Thermostat

The idea of controlling my home’s temperature from my phone seemed pretty slick, but shelling out big bucks for one of those flashy smart thermostats never sat quite right. There had to be a more affordable WiFi-enabled option for a cheapskate like me!

After some research, I took a chance on the Honeywell RTH6580WF to bring my 20-year-old home into the 21st century. And let me tell you, this little guy delivered everything I wanted in a smart thermostat on a budget.

Installation was a breeze once I confirmed I had the necessary C-wire. Clear labeling and an easy-to-follow manual made setup simple for even this novice DIYer. And the free iOS app connected quickly once firmware updated itself automatically. So far, so good!

Fancy color touchscreens are nice, but this model’s display shows me everything I need. I can still easily program temperature changes for when I’m home or away. Then it’s just a matter of tweaking to perfection from my phone. And it sure feels nice finally being able to rein in my kids’ thermostat joyrides!

Overall, the Honeywell has performed reliably over several seasons. I’ve experienced the occasional internet hiccup with the web portal but functionality returns promptly. A fair tradeoff for the hundreds I’ve saved on energy bills.

No device is absolutely perfect, but in my book the RTH6580WF hits the smart thermostat sweet spot. User-friendly operation, robust app controls, and serious savings all wrapped up in a reasonably-priced package. For this value-focused smart home convert, it’s just right!


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