This item, sold by Amazon.com, is currently reserved exclusively for Prime members.

Amazon Prime members also enjoy:
  • Unlimited Free Two-Day Shipping
  • Instant streaming of over 40,000 movies and TV episodes
  • A Kindle book to borrow for free each month - with no due dates
  • Over a million songs and hundreds of playlists
Try Prime free for 30 days. Cancel anytime
Exclusively for Prime members
This item is reserved for Prime members. Details
Already a member? Sign in
FREE Shipping on orders over $25. Details
Condition: Used: Very Good
Comment: Item will come in original packaging. Packaging will be damaged.
Other Sellers on Amazon
Add to Cart
$24.99
& FREE Shipping on eligible orders. Details
Sold by: online plumbing
Add to Cart
$26.34
+ Free Shipping
Sold by: ShopChanute
Add to Cart
$26.81
+ Free Shipping
Sold by: Samis Shop
Have one to sell? Sell on Amazon

Honeywell RTH221B1021/A 1 Week Programmable Thermostat

3.9 out of 5 stars 572 customer reviews

List Price: $24.99
Price: $16.49
You Save: $8.50 (34%)
In Stock.
Ships from and sold by Amazon.com exclusively for Prime members. Details
Gift-wrap available.
    This fits your .
  • Enter your model number to make sure this fits.
  • One program for the entire week-4 periods per day
  • Digital display;Dimensions: 3-3/8 inches wide x 4-3/4 inches. high x 1-1/8 inches deep.
  • Compatible with heating, cooling and heat pumps without auxiliary heat, Does not work with electric baseboard heat (120-240V) multistage HVAC systems
  • Accurate temperature control of +/-1-Degree F for consistent comfort
  • Display options: Fahrenheit or Celsius temperature display, 12 or 24 hour clock
39 new from $16.49 6 used from $14.02

Discover new and innovative products
Shop the latest tools and home improvement products from today's brightest startups on Amazon Launchpad. Shop now


Special offers and product promotions

  • Buy Used and Save: Buy a Used "Honeywell RTH221B1021/A 1 Week Programmable Thermo..." and save 43% off the $24.99 list price. Buy with confidence as the condition of this item and its timely delivery are guaranteed under the "Amazon A-to-z Guarantee". See all Used offers.

Have a question?

Find answers in product info, Q&As, reviews

Please make sure that you are posting in the form of a question.

Don't see what you're looking for?
There was a problem completing your request. Please try your search again later.
All Product Information Customer Q&A's Customer Reviews

Compare to similar items


Honeywell RTH221B1021/A 1 Week Programmable Thermostat
Honeywell RTH2300B1012/E1  5-2 Day Programmable Thermostat
Orbit 83521 Clear Comfort Programmable Thermostat with Large, Easy-to-Read Display
Lux Products TX100E 7-Day Programmable Thermostat, White
Honeywell RTH6450D1009 5-1-1-Day Programmable Thermostat
Honeywell RTH6350 5-2 Programmable Thermostat
See Details Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart
Customer Rating 4 out of 5 stars (572) 4 out of 5 stars (1103) 4 out of 5 stars (211) 4 out of 5 stars (111) 4 out of 5 stars (489) 4 out of 5 stars (405)
Price $16.49 $22.77 $54.99 $29.99 $39.99 $41.99
Shipping
Exclusively for Prime members
FREE Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By Amazon.com Amazon.com Amazon.com Amazon.com Allergy Be Gone Allergy Be Gone
Are Batteries Required Yes Yes Yes No Yes Yes
Color Off White White White White White White
Display Digital Digital Manual Digital Digital
Item Dimensions 1 x 3.75 x 4.75 in 1 x 3.75 x 4.75 in 5 x 1.5 x 3 in 5.37 x 1.12 x 3.37 in 10 x 12 x 3 in 10 x 2 x 9 in

Product description

A simple, easy to use 1-week programmable thermostat. You set it up to adjust the temperature when you are away or asleep-times when you don't necessarily need to heat or cool your home to optimum comfort-and your HVAC equipment runs less. Plus, your heating or cooling comes back to the comfort level you desire before you come home or wake up. Honeywell programmable thermostats are easy to install and are pre-programmed for your convenience. For more than a century, Honeywell thermostats have been the popular choice of homeowners. This thermostat is compatible with single-stage heating/cooling systems, heating, cooling, heat pumps without backup heat, mill volt, pellet stoves and fireplaces. It does NOT work with electric baseboard heat (120-240 V), heat pump systems with backup heat or multi-stage heating/cooling.


Product information

Technical Details

Technical Specification

Additional Information

Warranty & Support

Product Warranty: For warranty information about this product, please click here. [PDF ]

Feedback

If you are a seller for this product, would you like to suggest updates through seller support?
Would you like to tell us about a lower price?

Customer Questions & Answers

Customer reviews

Read reviews that mention

Top customer reviews

March 17, 2013
Verified Purchase
0Comment| 142 people found this helpful. Was this review helpful to you? Report abuse
November 18, 2017
Verified Purchase
review image
0Comment|Was this review helpful to you? Report abuse
December 13, 2017
Verified Purchase
0Comment|Was this review helpful to you? Report abuse
November 17, 2017
Verified Purchase
0Comment|Was this review helpful to you? Report abuse
December 4, 2017
Verified Purchase
0Comment|Was this review helpful to you? Report abuse
December 4, 2017
Verified Purchase
0Comment|Was this review helpful to you? Report abuse
August 12, 2017
Verified Purchase
0Comment|Was this review helpful to you? Report abuse
September 23, 2014
Verified Purchase
0Comment| One person found this helpful. Was this review helpful to you? Report abuse

Set up an Amazon Giveaway

Honeywell RTH221B1021/A 1 Week Programmable Thermostat
Amazon Giveaway allows you to run promotional giveaways in order to create buzz, reward your audience, and attract new followers and customers. Learn more about Amazon Giveaway
This item: Honeywell RTH221B1021/A 1 Week Programmable Thermostat

Pages with related products. See and discover other items: home masters, a/c thermostat, electrical connection, electrical connections, heat pump systems, temperature switches