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🌑️ Honeywell RTH221B1039 Programmable Thermostat Review



Very good

Revainrating 4.5 out of 5Β Β 
🌑️ HVAC Equipment, 🧰 Material Handling Products

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Description of 🌑️ Honeywell RTH221B1039 Programmable Thermostat

One program runs for the entire week (4 periods per day). Easy to use, basic operation makes programming easy. Precise +/- 1 degree Fahrenheit temperature control. Easy to install.


Global ratings 3
  • 5
  • 4
  • 3
  • 2
  • 1

Type of review

Revainrating 5 out of 5

Easy for my chicks

I'm a DIY enthusiast and needed a thermostat to automatically turn on the cooling fans for my chicks when it gets hot. For that it worked great. It is simple and therefore easy to program and set up. There is a secret menu to change from F to C and from 12 hours to 24 hours, among other things, so don't throw away the manual or it will be almost impossible to change these things. There are four time windows that count for working professionals: advancement; leaving; come back and sleep I used a

  • HVAC Control
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Revainrating 3 out of 5

No swivel adjustment

So-so for Jane's easy T status. However, I could not find any mention of the "Swing" function (which has been in every thermostat since Moses). "Swing" is the number of degrees between turning the heating/cooling on and off. With a fluctuation of 1 degree, a cooler set at 75 degrees will turn on at 75.5 degrees and off at 74.5 degrees. The larger the swing, the less energy is consumed and the lower the humidity and wear and tear on the air conditioner. I called tech support. Not impressed. Long

  • HVAC
  • Slightly wrinkled

Revainrating 5 out of 5

Very easy to install and program

For installation you will need: - a regular Phillips screwdriver to attach the bracket - a small flat head screwdriver to attach the wires - a drill and a 3/16 inch (3/ 32 for plaster) bit to attach if not the same size as your existing light fixture - two AAA batteries - flips the switch to turn off the power. Installation was very easy, I just took off the old faceplate, unscrewed the four colored wires (they have wire labels if you're color blind), drilled the holes and installed the new…

  • Building materials
  • I don't remember