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.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 | |
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B2B Rating |
84
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97
|
96
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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 |
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