Honeywell RTH221B1021/A 1 Week Programmable Thermostat Reviews

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List Price: $24.99
Sale Price: $19.88
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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.

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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.

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Very easy to install with just a screwdriver. Just match up the wires and it works. It is an excellent way to save money on A/C costs as you can set it to shut off the A/C or at least turn it up after you fall asleep. It has four settings for each day.

Honest reviews on Honeywell RTH221B1021/A 1 Week Programmable Thermostat

The thermostat is easy to install, programing. I had one for about 2 months and it work as programmed. I discover one additional advantage during Winter storm Nemo. We lost power to 5 days, the Honeywell thermometer is able to show actual house temperature below 50F, while my old mercury one did not. I purchased a second one after the storm and replacing the other thermostat in the house. I recommended it highly.

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Was a very nice upgrade from an old failing unit, good price and more detailed dailey programming than old unit.