Model # RTH221B

Internet #203539508

Store SKU #805478

Honeywell 7-Day Programmable Thermostat
0085267348553

Honeywell

7-Day Programmable Thermostat

  • Simple programming for the entire week, up to 4 periods per day
  • Compatible with heating, cooling & heat pump w/o auxiliary heat
  • Easy to read digital display
$19.88 /each

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Product Overview

The Honeywell 1-Week Programmable Thermostat has a simple interface and offers one basic program for the entire week with 4 program periods. It automatically adjusts the heating or cooling of your home so you are comfortable when you wake up, come home or at any other time you prefer. Used as directed, it offers energy savings of up to 33%.

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Price
$19.88 /each
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Name 7-Day Programmable Thermostat 7-Day Manual or Programmable Thermostat 5-2 Day Programmable Thermostat with Backlight 5-1-1 Day Programmable Thermostat with Backlight
Brand Honeywell Lux Honeywell Honeywell
Ratings (135) (9) (313) (71)
Features Battery Operated,Low Battery Indicator Backlit Display,Battery Operated,Lockable Backlit Display,Battery Operated,Filter Monitor,Low Battery Indicator Backlit Display,Battery Operated,Filter Monitor,Low Battery Indicator
Thermostat Program Type 7 - Day 7 - Day 5 - 2 Day 5 - 1 - 1 Day
Color Family Whites Whites Whites Whites
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Customer Questions & Answers

Why can't this be used with baseboard heaters?

Asked by: MacG
WARNING!! IGNORE EVERONE WHO JUST BLITHELY SAYS "IT WORKS"! It's not that simple, and it could be very dangerous if you do the wrong thing. I have an EE degree, and HarryJ below got it right. You need a transformer to convert line voltage to 24V and a relay in order to use a low-voltage thermostat with baseboards. Furnaces have such devices built-in. Fortunately, you don't have to build your own. Such a device is commercially available. It's called something like a "Level Temp Silent Operator", and it mounts directly in a knockout in a junction box in which you bring the line from the service panel and the line to supply the baseboards. Look up 24A01G-3. Such a device is available on this website under "Thermostat Accessories". They are also available at just about any local electrical supply house. I have hydronic baseboards, and my previous operator just failed after 35 years of flawless service. Because it is likely that you will replace your thermostat a few times over the course of many years, I believe it is a significant safety feature to NOT have a line voltage line feeding the thermostat.
Answered by: EdwardS
Date published: 2017-02-14

furnace oil heating

I have forced hot water heat only and burn oil and i am looking to save 20% on buying oil what ius the best progmable thermostate avaiable?
Asked by: David
Our forced hot water is fueled by natural gas and this works just great. Program it and forget it.
Answered by: bjih
Date published: 2015-11-08

Can this be used for central air conditioning control only?

I have separate central air and heating is the boiler/radiator. I currently have two separate thermostats. Is there a thermostat that can be used to control both? Or should I keep separate controls? I need to at least replace the ac thermostat with a programmable one, and wonder if this thermostat would work for the ac alone.
Asked by: MRMR
Almost all furnaces HVAC systems provide both heat and cooling. This thermostat is designed to control heat or cooling control for one low voltage (24 volt AC) furnace relay using industry standard color coded wiring.
Answered by: txtmblweed
Date published: 2016-12-03

how long do the batteries last?

This thermostat does not connect to 24V. How long will the batteries last?
Asked by: HVAC
Honeywell recommends replacing the batteries once a year to visually inspect the battery compartment for any corrosion.
Answered by: Honeywell Support
Date published: 2017-02-15
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Customer Reviews

7-Day Programmable Thermostat is rated 3.6 out of 5 by 135.
Rated 1 out of 5 by from Worked great for a little over a year. Now it calls for heat at random times. My wake time is s... Worked great for a little over a year. Now it calls for heat at random times. My wake time is set for 7.30 am and 67. I have been woken up all week between 3 and 6 am with the heat on. The thermostat says it is in the wake mode. UGH. It is also heating beyond the programmed temp. Currently my house is 73 but the thermostat is set to 67. I called Honeywell and since it is over a year old it is out of warranty and I need to buy a new one. If it matters I have used this with an oil fired boiler. And I have changed the batteries twice in the last 3 weeks hoping this would fix the issue. But it is a flaw in the thermostat.
Date published: 2017-01-13
Rated 1 out of 5 by from My experience with this thermostat and customer service was, in a word, HORRIBLE. The thermostat ... My experience with this thermostat and customer service was, in a word, HORRIBLE. The thermostat would not work. I could turn it on, but it would not turn off. It did not respond to simple changes in settings and more than likely it is not programmed to accepted standard color coded wiring. I contacted customer service for help and after waiting about 15 minutes was connected. The rep immediately went down a path that blamed me for the reason the thermostat wouldn't work, even though I had the thermostat wired exactly like the one I was replacing. I finally gave up trying to reason with him when he told me I needed to contact a contractor. This was a dodge because he didn't want to acknowledge a defective thermostat or work with me on how to fix it. I reinstalled the old thermostat with no problems and will look for another digital thermostat....from a DIFFERENT company. Never again.
Date published: 2016-11-14
Rated 5 out of 5 by from Easy to replace old unit, looks clean. 4 temperature settings/day, the same 4 settings each day, ... Easy to replace old unit, looks clean. 4 temperature settings/day, the same 4 settings each day, simple. My routine is simple & the same everyday, I just have to program 1 day rather than 7 days, or 5+1+1 etc. One thing I miss on the old thermostat, this thermostat only shows the temperature in the room, not what it is currently set at in the program.
Date published: 2017-01-04
Rated 5 out of 5 by from Honey Well programmable thermostat We were having issues with our previous thermostat not making contact to keep our heat going. After installing this Honeywell Thermostat heat control is no longer a concern.
Date published: 2016-12-27
Rated 4 out of 5 by from It was easy to install, but you can not read the face dial if there is no light in the room It was easy to install, but you can not read the face dial if there is no light in the room
Date published: 2016-12-18
Rated 4 out of 5 by from Did what I needed without having to use my smart phone. Imagine that Did what I needed without having to use my smart phone. Imagine that
Date published: 2017-01-11
Rated 1 out of 5 by from Very effective at maintaining a consistent 54-57 degrees, regardless of what you set it to. Unfor... Very effective at maintaining a consistent 54-57 degrees, regardless of what you set it to. Unfortunately, like many people I prefer a temperature in the low 70s. It's too cheap a product for it to be worth it to fight with customer service for a refund, but will be getting something more functional in the near future. And not from this manufacturer.
Date published: 2016-12-17
Rated 5 out of 5 by from Works and easy install - Replaced Nest Tried to move to a Nest thermostat, but unfortunately it didn't work properly on our 2 wire heating system. So instead of installing a C wire and going through all that expense, we just rolled back to a tried and true digital thermostat. Works great and was very easy to install.
Date published: 2016-11-08
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