Product Feature
- One program for the entire week-4 periods per day
- Digital display
- 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
Product Description
A simple, easy to use 1-week programmable thermostat. A programmable thermostat can save you up to 33-Percent off your energy bill, if used as directed. 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 Detail
- Amazon Sales Rank: #4018 in Home Improvement
- Brand: Honeywell
- Model: RTH221B1021/A
- Platform: Windows
- Format: CD-ROM
- Number of items: 1
- Dimensions: 4.75" h x1.00" w x3.75" l,
Related Seller :
Honeywell RTH221B1021/A 1 Week Programmable Thermostat Honeywell 1-Week Programmable Thermostat — RTH221B1021 • Easy to read display • Precise temperature control • Slim, compact design The Honeywell RTH221B RTH221B | 1-Week Programmable Thermostat - HoneywellFind Your Model Number. Need info on your thermostat or other product but can't find the model number? Here's help.1 Week - Honeywell | Thermostat | Air Cleaners A Honeywell 1-Week Programmable thermostat can help solve thermostat needs; other thermostats include a non-programmable thermostat, a digital thermostat and more.Honeywell 1-Week Programmable Thermostat-RTH221B at The Visit The Home Depot to buy 1-Week Programmable Thermostat RTH221Bat The Home DepotHoneywell RTH221B Basic 1 Week Programmable Thermostat for This easy to use and install Honeywell thermostat has one program for all days of the week (4 periods - wake, leave, return, sleep). A programmable thermostat can
Product Reviews
26 of 26 people found the following review helpful.
Very easy to install and works well
By uktravailer
I wanted a simple to install thermostat to replace the aging, mercury switched Honeywell items that control our heat and cooling. After researching I decided that a simple weekly timer is good enough, and certainly better that what we had originally. The RTH221B shows the current temperature and can be set to adjust the temperature when you wake, leave, return and night. It is simple to use with 15 minute increments.
Installation says "15 minutes or under" and I found this to be true.
To install:
Turn off power to furnace and thermostat (although it is a low voltage feed, you MUST still do this)
Unscrew the original thermostat from the wall but leave wires attached
Check the color of the wires and which terminals they attach to on the original (look for small letters W,R,Y,Rc etc)
Mark the wires (if needed) with the stickers provided in the package
Unhook wires from the original
Remove backing plate from new thermostat, thread wires through hole and place against wall
Attach backing plate using screws and wall plugs provided
Put 2 x AAA batteries(NOT supplied)in the faceplate
Attach previously marked wired to the matching terminals at the back of the faceplate
Snap faceplate onto backing plate
Read instructions for setting time and programs
Turn power to furnace back on
Pros: cheap, easy to install, good instructions
Cons: would have been nice to include 2 x AAA batteries
Overall a good buy. I fitted one as a test and then bought 3 more.
18 of 20 people found the following review helpful.
Simple Enough but Lacks Backlight
By Len
Being retired, and having an old failed Honeywell 5/2 day thermostat, we replaced it with this 7-day model for heating only. It was simple enough to replace. The twin wiring was identical and so were the wall mounting hole centers. The directions for set-up were fairly clear. My one beef is that the new thermostat lacks back lighting which the old one had. The letters are small enough where one needs a flashlight during setup, requiring three hands at times, and is awkward for those of us with just two hands. Omitting the back light is inexcusable since the 5/2 twin RTH2300 DOES have back lighting. Another caution is that you need a tiny screwdriver to turn the wire set screws. I happen to have one but I would guess few people do.
9 of 10 people found the following review helpful.Honeywell 1 Week Programmable Thermostat
By Jessi
It works exactly like it should. Keep in mind that it is a ONE week program. There are four different times that you can set. You cannot set a time for each day.... meaning, I would prefer to keep the temperature a little cooler on the weekends while I sleep in but you can not set a daily different temperature. I still love it and will keep it. I just have to make sure that before I go to bed on a day that I can sleep in, I have to set the temperature to what I want and then push "hold". If that doesn't bother you, then I would totally get this. I have saved so much money by keeping the temp higher while I'm at work and I have it set to get colder an hour before I get home.
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