Programmable Thermostat from Honeywell Home - RTH221B1039 - White

By: ‎Honeywell Home

The Honeywell Home RTH221B1039 RTH221B Programmable Thermostat is the perfect choice for your home's HVAC system. With its easy installation, overall satisfaction rating, reliable tech support, and durable design, this thermostat is sure to provide you with the best possible HVAC control. Plus, its white finish adds a stylish touch to any home. Get the Honeywell Home RTH221B1039 RTH221B Programmable Thermostat today and enjoy the perfect blend of convenience and quality.
84
B2B Rating
315 reviews

Review rating details

Value for money
80
Tech support
78
Quality of material
78
Overall satisfaction
82
Easy to install
93
Durability
79

Details of Programmable Thermostat from Honeywell Home - RTH221B1039 - White

  • Item Weight: ‎4.8 ounces
  • Size: ‎3.5H x 4.75W x 1D
  • Specific Uses For Product: ‎Air Conditioner, Furnace
  • Model Name: ‎RTH221B
  • Best Sellers Rank: #846 in Tools & Home Improvement #1 in HVAC Controls
  • null: ‎Heating and Cooling
  • Item Weight: ‎0.3 Pounds
  • Warranty Description: ‎1 year limited.
  • Customer Reviews: 4.3/5 stars of 5,499 ratings
  • Connectivity Technology: ‎Non-connected
  • Finish Type: ‎White
  • Power Source: ‎Battery Powered
  • Backlight: ‎Yes
  • Mounting Type: ‎Wall Mount
  • Batteries Included?: ‎No
  • Pattern: ‎Thermostat
  • Special Features: ‎Low Battery Indicator, Clock Display, Low Voltage, Programmable
  • Batteries: ‎2 AA batteries required.
  • Batteries Required?: ‎Yes
  • Included Components: ‎User Manual, Thermostat, Mounting Hardware
  • Control Type: ‎Button Control
  • Display Type: ‎LCD
  • ASIN: B018A3DHJY
  • Finish: ‎White
  • Country of Origin: ‎Mexico
  • Date First Available: May 15, 2014
  • Shape: ‎Rectangular
  • Color: ‎White
  • Special Feature: ‎Low Battery Indicator, Clock Display, Low Voltage, Programmable
  • Item model number: ‎RTH221B1039
  • Controller Type: ‎Hand Control
  • Product Dimensions: ‎1"D x 4.75"W x 3.5"H
  • Number of Batteries: ‎2 AA batteries required.
  • Control Method: ‎Touch
  • Style: ‎Thermostat
  • Brand: ‎Honeywell Home
  • Manufacturer: ‎Honeywell Home
  • Material: ‎Plastic
  • Item Package Quantity: ‎1
  • Battery Cell Type: ‎Alkaline
  • Part Number: ‎RTH221B
  • Voltage: ‎24 Volts

Video for this product

Comments

michelle chapman: Didn't have to replace the furnace just the thermostat. Thanks amazon for having exactly what I needed.

Canada on Nov 29, 2023

ScottBuysOnAmazon: I had hoped for the ability to program this thermostat for multiple days but I was denied. It was easy to install and setup.

Canada on Nov 27, 2023

StaMar: You need a magnifying glass to see the settings screens
Not intuitive
We have 3 zone thermostast in my house
Thus one is impossible to read for setting up. Should have bought a higher quality one
At least it works

United States on Nov 25, 2023

Annie F: This unit is easily set or changed to your needs. Nothing confusing about it. Set to warm up by time you are out of bed in the morning, drop in temp during the day when it isn't necessary to stay warm. Weekend or off days can be set differently so it stays warm if you need it to be. Then warms up later in the day and turns down at bedtime. If it is too cool during a setting, just touch the arrow up or down for desired temps.

United States on Nov 14, 2023

Dean: Works great and accurate. I'm on my third one in the past 4 years. The controls seem to function properly but the furnace heat shuts off while the fan continues to run trying to bring up the temperature to meet the setting. Which it won't blowing cold air. Replaced the thermostat with a new one and good to go for another year or so.

United States on Nov 06, 2023

Amazon Customer: I bought this for an RV and actually works really well. The old RV ones are junk and saw this on YouTube as an option. It installed with no issue and works perfectly cycling the heat on and off with no concerns. Maintains the heat at the exact temperature. My only complaint is the the on and off switch at the bottom is really small and very fiddly to use.

Canada on Nov 05, 2023

Jeff G.: The thermostat in my newly purchased old home stopped working after about 1 year. Replacing the AAA batteries did not help. Circuit breaker not tripped. HVAC contractor quoted a fortune to install new, different unit and warned of electrocution hazard if I took the DIY path. No no-no-no. Fortunately, it was open-window season. Same model number available through Amazon with next-day delivery. Bingo - no wiring - just replace the innards with new unit and AC/Heat back in business.

United States on Nov 01, 2023

Thomas: I was looking for the cheapest thermostat I could find since it is for a rental I am staying in. This model doesn't have the back light so it can be difficult to see the numbers in the dark. It is bare bones but works. The only thing that caught me off guard was the compressor saftey timer built in. When installing the unit and switch between settings, there is a 5 minute time delay to allow the compressor time to ready. I am glad I read the instructions cause I jumped the leads to force the compressor to start thinking there was a problem with the unit. I was able to enter the programming to turn off the saftey while programming it. Don't forget to turn it back on.

United States on Oct 20, 2023

Phu-T Quach: Very basic, though get the one with double A battery turn out be trible A wrong infor .

Canada on Apr 30, 2023

Amazon Customer: I saw in the reviews that you can’t program for Celsius…yes you can. It’s in the instructions. I also read a review that said it’s not easy to program…yes it is? If you take your time with it, it will be fine. It’s a budget t-stat so no, it’s not going to be intuitive like Google or a Nest…
Other than that it’s a decent unit, only thing I wish it had is a backlit display.

Canada on Jan 13, 2023



Programmable Thermostat from Honeywell Home - RTH221B1039 - White Aube Technologies RC840T-240 Electric Heating Relay with On/Off Switching Capabilities VIVOSUN 6" 390 CFM Inline Fan with Variable Speed Controller
Programmable Thermostat from Honeywell Home - RTH221B1039 - White Aube Technologies RC840T-240 Electric Heating Relay with On/Off Switching Capabilities VIVOSUN 6" 390 CFM Inline Fan with Variable Speed Controller
B2B Rating
84
97
96
Sale off $8 OFF
Total Reviews 315 reviews 53 reviews 230 reviews
Item Weight ‎0.3 Pounds 10.2 Kilograms
Size ‎3.5H x 4.75W x 1D
Specific Uses For Product ‎Air Conditioner, Furnace
Model Name ‎RTH221B
Best Sellers Rank #846 in Tools & Home Improvement #1 in HVAC Controls #3,633 in Patio, Lawn & Garden #4 in Greenhouse Ventilation Equipment
null ‎Heating and Cooling
Item Weight ‎0.3 Pounds 10.2 Kilograms
Warranty Description ‎1 year limited.
Customer Reviews 4.3/5 stars of 5,499 ratings 4.6/5 stars of 1,560 ratings
Connectivity Technology ‎Non-connected
Finish Type ‎White
Power Source ‎Battery Powered Corded Electric
Backlight ‎Yes
Mounting Type ‎Wall Mount Controller TypeButton Control
Batteries Included? ‎No
Pattern ‎Thermostat
Special Features ‎Low Battery Indicator, Clock Display, Low Voltage, Programmable
Batteries ‎2 AA batteries required.
Batteries Required? ‎Yes
Included Components ‎User Manual, Thermostat, Mounting Hardware
Control Type ‎Button Control
Display Type ‎LCD
ASIN B018A3DHJY B0B5HCMNRW B07SG989NY
Finish ‎White
Country of Origin ‎Mexico
Date First Available May 15, 2014 June 30, 2022
Shape ‎Rectangular
Color ‎White Silver/Black
Special Feature ‎Low Battery Indicator, Clock Display, Low Voltage, Programmable
Item model number ‎RTH221B1039
Controller Type ‎Hand Control
Product Dimensions ‎1"D x 4.75"W x 3.5"H 11.8"D x 3.7"W x 8.7"H
Number of Batteries ‎2 AA batteries required.
Control Method ‎Touch App
Style ‎Thermostat Modern
Brand ‎Honeywell Home AUBE TECHNOLOGIES VIVOSUN
Manufacturer ‎Honeywell Home VIVOSUN
Material ‎Plastic Included ComponentsCord
Item Package Quantity ‎1
Battery Cell Type ‎Alkaline
Part Number ‎RTH221B
Voltage ‎24 Volts 24 Volts 120 Volts
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