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Honeywell 1-Week Programmable Thermostat (RTH221B1021)
marcusking (943)
98.8% positive feedback
Price:
$14.00
+ $6.90 shipping
Returns:
14 days returns. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
Condition:
Basic program. ° F or° C temperature display. 12 or 24 hour clock. +/-1° F accuracy.
- Buy It NowHoneywell Home RTH221B Programmable Thermostat 1 Basic Program White
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About this product
Product Identifiers
BrandHoneywell
MPNRTH221B1021
UPC0085267866958
ModelHoneywell RTH221B
eBay Product ID (ePID)13035381326
Product Key Features
Power SourceBattery
Compatible ProductUniversal
Thermostat ShapeRectangular
FeaturesDigital Display
Thermostat Programmable Days7
Additional Product Features
StyleSurface-Mounted
All listings for this product
Ratings and Reviews
Most relevant reviews
- Jan 04, 2018Top favorable review
Works well, installation was easy once fully understood.
What to do with the C wire was an issue on installing. This has no C terminal. The instructions, both printed, and on line are inconclusive. After a lot of online work, I came upon the fact that the C terminal is to provide continuous power to the clock. This uses a couple of alkaline cells for that purpose so the C wire has nowhere to go. One simply tapes it off. The one unfortunate thing about this thermostat in operating mode is that it has no backlight for the display. In its location in my house, it's not well illuminated. It is near a utility drawer so I keep a small flash in there to facilitate reading the display. I imagine that if I'd spent $5 or $10 more, the 'stat would have its own light. So it goes.Verified purchase: YesCondition: Pre-owned
- Dec 10, 2015Top critical review
Does the Job
The good: Simple (for programmable thermostat) setup. Does the job. Once I got it set up it runs fine. The bad: Some of the displayed alphanumeric text is so small I have trouble reading it. Also there is no built in illumination. it is difficult to see the displayed information in low light conditions. I'm not talking about the dark, I'm talking about without direct light on the thermostat. I had to use a flashlight a couple of times to see it, even though there is a light directly above it on the ceiling.Verified purchase: YesCondition: New
- Dec 05, 2017
Simple but accurate
Is simple in that it is programmable for 4 different times of the day, set by you, for each of the 7 days of the week. Is also very accurate by turning on or off when the preset temperature you choose is reached. This is the 2nd one I've bought--one was downstairs and now upstairs. Was only $8 on ebay--1/3 the store price.Verified purchase: YesCondition: Pre-owned
- Nov 23, 2023
It works fine.
It works fine. I used it to replace an even older Honeywell thermostat. It took just a few minutes to install. The instruction assume the thermostat is replacing a later model, so they don't provide all the information necessary, but I was able to figure it out.Verified purchase: YesCondition: New
- Aug 06, 2019
Simple thermostat
Honeywell is the easiest thermostat to use and rely on. The only reason I replaced mine was bcz the old one was going on 20 years old but still working good. Buttons started getting harder to push.Verified purchase: YesCondition: New
- Jan 07, 2020
Battery powered thermostat for space heater.
I used this thermostat for a portable heater. It worked because it is battery powered and I needed mobility.Verified purchase: YesCondition: New
- Jan 30, 2018
Very easy to install
My old thermostat - was another brand, but quite working- it got stuck at 70 degrees on heat. The furnace would click on at 69 degrees and stop after the house warmed up to 70. It was flu season and when someone gets the chills a warmer house ,feels so much better. The mounting screws were there and the connecting wires were all color coded. After matching the color coded wires with the same color screws.the mounting was easy as holding it level with one hand while tightening the mounting screws . After testing - to see the heat and air would kick on ,I then followed the directions to set the clock and C or F as directed in the instructions for temp.it was installed in minutes and working perfectly. I saved on service calls and had no problem . This works great and I have the install instruction and setting instructions handy, in case I ever need them. I feel confident I will get years of service from this new up grade , worry free. thanks...Verified purchase: YesCondition: Pre-owned
- Feb 21, 2017
Great for the money
Works great ..I have steam heat low voltage... love that set it and done cool at night warm in the morning :)Verified purchase: YesCondition: Pre-owned
- Nov 04, 2020
good product
tried another brand not so hot. easy to install and set up.Verified purchase: YesCondition: New
- May 05, 2017
HEat up THE house rite
During night time you cant see it. Star loss. Otherwise, it hooks up to old furnaces great. Keeps in time with as if you have a power out....the clock is battery operated.Verified purchase: YesCondition: Pre-owned
