Honeywell Home RTH221B1021 Programmable Thermostat, 1 Week / 4 Time Periods Per Day, Accurate to +/- 1Degree

Here the deal:We had one of those Commercial grade Honeywell touchscreen thermostats that usually do a great job, but we noticed the temperature in the house never seemed to keep, and would hear the unit, whether heater or ac, kick on quite a bit. We decided to do some research, and with a deal from our energy provider, we ended up with one of those $249 Nest thermostats. I was STOKED, like a fat kid with some apple pie. We got the Nest in, and I went to work. Like a Dad in bad joke bookstore. I've replaced many thermostats over the years and the Nest was a piece of cake. BUT, we discovered it had a malfunction, so after talking with tech support, it was getting replaced. SOOOO, back to the Honeywell. I went out to the garage and grabbed the oldie off the shelf, and as I was walking in, my Dollar Store flip flop got caught on the door jam. It popped the rubber thing out of the foam bottom and made me nearly fall over forwards onto the hard tiled floor. There i was, Rambo faced, screaming in slo motion, feeling the pain of my big toe hit the metal, when all of a sudden the Honeywell touch screen goes flying out of my hands, and flips, and turns, and swings, and screams, to the floor. BAM!!! Cracked screen. Out of Commission. No Goodie No More. Mad me. I dropped the ball, but it wasn't the ball man, it was my $150 Honeywell touch screen I had plans to put back onto the wall when we sold the house years from now. So there I was, at a cross roads, like Willow, but without Mad Mardigan there to take the baby. I broke my working thermostat, and was left with TWO broken thermostats. It was humid, then cold, then hot, then cold, then humid, the windows were open, they were closed, they were damned like Conan the Barbarian was.I decided to order THIS thermostat from Amazon. I got in two days, and the hookup was easy. Easy yo. I'm talking so easy, I thought about taking it for a drink and a meal. The thermostat works like a champ! However I now rec'd the replacement Nest thrmostat and this one is taken down, boxed up, and awaits its new homeowner in severla years whoever and whenever that may be.Pros:1. Easy to install (C wire is Common and NOT used)2. Basic use makes ti fun for all ages!3. Basic programming is available, but nothing that is 3 pointer at the buzzer wow4. Small, and easy to useCons:1. None. It works great and is easy to install

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 attachedCheck 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 packageUnhook wires from the originalRemove backing plate from new thermostat, thread wires through hole and place against wallAttach backing plate using screws and wall plugs providedPut 2 x AAA batteries(NOT supplied)in the faceplateAttach previously marked wired to the matching terminals at the back of the faceplateSnap faceplate onto backing plateRead instructions for setting time and programsTurn power to furnace back onPros: cheap, easy to install, good instructionsCons: would have been nice to include 2 x AAA batteriesOverall a good buy. I fitted one as a test and then bought 3 more.

Good quality, easy to install (thanks to you tube) and program. Basic functions, just like I wanted. Be sure and get the model that illuminates.

It still works. I just want one that lights up when I push a button. It's in a dark corner and the light on the phone is a hassle when going to bed. I'll use more batteries for the convenience. I don't mind to FAFO. EV anyone? Now there's a massive battery.So ¼ oz of battery to control the heat where I live is perfect.Installation is easy.Two screws is all.Very simple.Great control.Wonderful display.

It was easy to wire in. It's very affordable. It works great. It's a little tedious to program.

The only reason I give this 3 stars is because the title of the product is misleading. It says its a 1 week programmable thermostat, but its only a one day (repeats same procedure everyday) programmable thermostat.Overall easy to install, did not have instructions for a 2 wire installation. I had old wire where they were the same color, if you take a volt meter, whatever one is actually producing a current is the R wire. The other one without a current is the W wire. Wish they had something like this in the instructions. That was the other reason I gave it 3 stars.It works great so far, no issues. Will update in a month of this thing running for awhile.