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ONE WEEK PROGRAMMING: Set one identical program for the entire week with four program periods per day including wake, leave, arrive and sleep. PRECISE TEMPERATURE CONTROL: Precise temperature control of plus/- 1 degree Fahrenheit DIGITAL DISPLAY: Easy-to-read digital display with an intuitive interface for one-touch access to setpoint temperature EASY INSTALLATION: Easy to install yourself and basic operation keeps programming simple REMINDERS: Built-in battery change reminders (2 AAA batteries are required for operation) SET POINT RETENTION: Set point is retained in memory in the event of a power outage DISPLAY OPTIONS: Fahrenheit or Celsius; 12 or 24 hour clock. Note: This thermostat is not backlit. OVERRIDE OPTIONS: Permanent and temporary override capability COMPATIBLE WITH: Heating, cooling and heat pumps without auxiliary heat options Does NOT work with electric baseboard heat (120-240 V), heat pumps with backup, or multi-stage heating/cooling. For indoor use only.
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| Manufacturer | - |
|---|---|
| Brand | Honeywell |
| Item model number | RTH-221B 1000W |
| Color | White |
| Weight | - |
| Height | - |
| Depth | - |
| Product Id | 879787 |
|---|---|
| User Reviews and Ratings | 3.2 (69 ratings) 3.2 out of 5 stars |
| UPC | 085267311779 |
| # | Title | Reviews | User Ratings | Price |
|---|---|---|---|---|
| 1 |
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Honeywell Home RTH221B1021 RTH221B Programmable Thermostat, Large, White
Reviews: 69
Ratings:
(69)
Price:
$23.27
on
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69 | (3.2) |
$23.27
on
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The unit is easy to program and extremely easy to install. If it had a backlight it would be perfect but for the price I can't complain.
This is a good little thermostat for people that need to replace a vertically oriented thermostat. Programming is not especially intuitive, but can be easily completed with the aid of the instructions.
It was a little tricky to setup for an electric HVAC, so definitely have to follow the instructions. But once it's connected programming is very simple. The thermostat works good and I definitely recommend to anyone that needs a vertical mount thermostat.
I easily installed this thermostat at my cottage, in the living/dining area, which is warmed by 3 electric baseboard heaters. I found they were all linked, in the basement, to a voltage reducer which turned 240 volts into 24 volts. From this device, 2 thin wires (red and white) connected to the old manual thermostat. It was a simple matter to remove this thermostat and then connect the low voltage wires to the new Honeywell RTH221 terminals, marked R and W. Programming the new thermostat was also very simple since I only had to enter the time and temperature for wakeup and sleep and those settings were extended to every day of the week. I love getting up in the morning to an already-warmed up house, and not having to remember in the evening to turn down the thermostat before bed time. This inexpensive thermostat delivers everything Honeywell promises and is the perfect choice for anyone who doesn't care about different temperature settings for weekdays vs. weekends.
Wanted a basic digital thermostat to replace my existing original analog unit which still worked, but was ugly and the old mercury bulb was difficult to read. Needed a vertical unit to fit over existing wall hole but all the ones stocked in stores were horizontal. Found this on-line and shipped-to-store, took about 5 days. Walmart sent me email telling me when it arrived at store. Picked it up and installed it myself using directions and it's been doing the job. I don't need a lot of programmability, just a basic box in white with an easy to read digital display and this one meets those requirements at a good price (<$25)
Seems like a good product, but there was no wiring schematic included. All the directions said was hook it up the same as old one. Well my old one was a mercury mechanical one that no longer functioned. So I need to figure out how this one is internally wired so I can hook it up to see if will work. Until that time it will just sit there on the wall and look good.
Instructions on how to wire no good at all. I had to phone to get it done. Person on phone very helpful. Then had to phone again to schedule; again person on phone very helpful. It works well. Seems to maintain even heat better than the non-programmable one I had to adjust.
i had to buy this as a replacement unit for another identical one that worked fine for 2 years then the buttons got stuck and wouldn't let me program it. It cheap and easy to use so i bought the same one.
Good unit, works well. Only drawback is incomplete wiring diagram. Does not address a very simple, heat only, system. If the terminal call out in the install booklet was better, one would not have to research the proper connections on line.
I'm utterly frustrated and exasperated trying to get simple functions.Beware - this model has the most bizarre setup,pre-programmed,and it's very difficult and counter-intuitive to try to get it to function on manual - or my own setting.After trying to change the clock time for Daylight Savings, I'm sorry I ever touched the SET button. The directions are twisted and don't work. The internal settings are for the birds,literally. It resets to default schedules that are maddening and wake me when my furnace kicks on at unexpected times, 4 times a day. I bought this model because I needed a single simple program. Whoever designed this seems out of touch with the needs of a common home such as mine. This is so bad, I suggest getting a different model with better reviews.