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Honeywell Home RTH221B1039 1-Week Programmable Thermostat

  • Based on 5,209 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, May 7
Order within 9 hours and 34 minutes
Available payment plans shown during checkout

Style: Thermostat


Features

  • ONE WEEK PROGRAMMING: Set one identical program for the entire week with four program periods per day including wake, leave, arrive and sleep.
  • PRECISE TEMPERATURE CONTROL: Precise temperature control of +/- 1 degree Fahrenheit
  • DIGITAL DISPLAY: Easy-to-read digital display with an intuitive interface for one-touch access to setpoint temperature
  • EASY INSTALLATION: Easy to install yourself and basic operation keeps programming simple
  • REMINDERS: Built-in battery change reminders (2 AAA batteries are required for operation)
  • SET POINT RETENTION: Set point is retained in memory in the event of a power outage
  • DISPLAY OPTIONS: Fahrenheit or Celsius; 12 or 24 hour clock. Note: This thermostat is not backlit.
  • OVERRIDE OPTIONS: Permanent and temporary override capability
  • COMPATIBLE WITH: Heating, cooling and heat pumps without auxiliary heat options
  • Does NOT work with electric baseboard heat (120-240 V), heat pumps with backup, or multi-stage heating/cooling. For indoor use only.

Brand: ‎Honeywell Home


Model Name: ‎RTH221B


Controller Type: ‎Hand Control


Special Feature: ‎Low Battery Indicator, Clock Display, Low Voltage, Programmable


Color: ‎White


Specific Uses For Product: ‎Air Conditioner, Furnace


null: ‎Heating and Cooling


Connectivity Technology: ‎Non-connected


Included Components: ‎User Manual, Thermostat, Mounting Hardware


Item Weight: ‎0.3 Pounds


Voltage: ‎24 Volts


Material: ‎Plastic


Shape: ‎Rectangular


Display Type: ‎LCD


Finish Type: ‎White


Control Type: ‎Button Control


Control Method: ‎Touch


Mounting Type: ‎Wall Mount


Style: ‎Thermostat


Backlight: ‎Yes


Number of Batteries: ‎2 AA batteries required.


Product Dimensions: ‎1"D x 4.75"W x 3.5"H


Manufacturer: ‎Honeywell Home


Part Number: ‎RTH221B


Item Weight: ‎4.8 ounces


Country of Origin: ‎Mexico


Item model number: ‎RTH221B1039


Batteries: ‎2 AA batteries required.


Size: ‎3.5H x 4.75W x 1D (in.)


Finish: ‎White


Pattern: ‎Thermostat


Item Package Quantity: ‎1


Special Features: ‎Low Battery Indicator, Clock Display, Low Voltage, Programmable


Batteries Included?: ‎No


Batteries Required?: ‎Yes


Battery Cell Type: ‎Alkaline


Warranty Description: ‎1 year limited.


Date First Available: May 15, 2014


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, May 7

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Too difficult confusing
Style: Thermostat
It was kind of confusing to operate so I sent it back. I fix my old one left it hasn’t.
Reviewed in the United States on September 11, 2023 by Amazon Customer

  • Works as Advertised
Style: Thermostat
More useful than a standard thermostat, less fancy [and less expensive] than a hyper-customisable version. If you want to keep a consistent heating or cooling schedule over a season, this is worth the investment. Doesn’t take long to set the next iteration when you’re ready.
Reviewed in the United States on August 25, 2023 by Dan Arsenault

  • Great thermostat
Style: Thermostat
Great cheap thermostat. Not super loud when it turns on
Reviewed in the United States on September 7, 2023 by Tyler K.

  • Very easy to program
Style: Thermostat
I chose this 7-day thermostat so I would not need to bother with the more complicated programming associated with a weekday/weekend thermostat. I like the display and have found it very easy to use, with no problems.
Reviewed in the United States on August 14, 2023 by RPL

  • Does not have AUTO feature
Style: Thermostat
Was looking for a programmable thermostat with auto on/off and was disappointed that this model didn’t have that feature. It just lets you create a program but doesn’t go to the set temps by itself which defeats the purpose in the south where we need heating and cooling in the same day sometimes.
Reviewed in the United States on June 27, 2023 by Blinky

  • Conforme a lo que dice
Style: Thermostat
Bueno y si funciona bien!
Reviewed in the United States on August 29, 2023 by Luis Aleman

  • VERY EASY to operate and install!
Style: Thermostat
Very easy product to use. Came with all accessories except for batteries. Takes two triple AAA's. Honeywell is an awesome manufacture compared to the rest. Got the job DONE!
Reviewed in the United States on August 10, 2023 by Shane Luper Shane Luper

  • Great item great price
Style: Thermostat
Very good price and I can’t believe how fast I received this. I ordered this at 4pm and received it by 7:30pm the same night . It worked great and was easy installation
Reviewed in the United States on August 5, 2023 by Amanda santarpia

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