Honeywell TH2110D1009 White Two Stage Programmable Vertical Thermostat from the Basic Pro Series

- Item #: BCI1249252

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Programmable Vertical Thermostat

  • Weekday/Weekend programming - 5-2 (Weekdays, Weekend) programming.
  • Backlit digital display - both current and set temperatures are easy to read in various lighting conditions.
  • Precise comfort control (+/- 1ª F) - maintains consistent comfort to the highest level of accuracy.
  • Stages: 1 Heat/1 Cool
  • Basic operation - easy-to-use slide switches allow you to select the heat or cool mode, and operate the fan.
  • Adaptive Intelligent Recovery - ensures programmed temperature is reached by programmed time.

Additional Honeywell Links

Our SKU: Honeywell TH2110D1009

This product is listed under the following manufacturer number(s):

  • Honeywell TH2110D1009*

*Denotes a finish or option that has been discontinued

Honeywell TH2110D1009 Product Specifications

User Manual
Installation Guide
Control Type Digital
Depth 1.125
Display Size 2
Hardwired No
Height 4.6875
Humidity Sensing No
Product Weight 3
Programmable Yes
Settings 2
Stages 1 Heat / 1 Cool
Supports Heat Pump No
Supports Millivolt Yes
Touch Screen No
UL Listed Yes
Voltage 20, 30
Width 2.875

Installation Resource Center

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Honeywell TH2110D1009 Reviews

Rated 5 out of 5 by from Great Vertical Thermostat I had a hard time finding a programmable thermostat with a vertical orientation and a small footprint on the wall. This one fit perfectly for the location and price I needed. My old one started to fail after 10 years of service and I needed to replace it with a similar 5 weekday and 2 weekend program. I did some research and looked at reviews for this model and this one seemed to be a nice fit for a replacement. It has some nice features for the price. Compressor protection for preventing you?re A/C from turning on too soon after stopping so your compressor doesn?t get damaged. It has an Adaptive Intelligent Recovery system which helps the thermostat know how soon to start the heating/cooling process to meet your temperature setting at a desirable time you set it. I like the large display with its backlight feature to see settings in the dark. Overall, it has been working fine for a few months now. It was simple to wire and get it working and for a good price, it seems to do everything I need a thermostat to do. It is too early to say whether the unit will last me 10 years. I hope it will and if it does, it will be a great buy.
Date published: 2011-01-08
Rated 5 out of 5 by from Honeywell TH2110D1009 Great product for the price. I'm very please with the ease in which you can program it and the backlight that has made a big difference when I have to make a change in the middle of the night.
Date published: 2010-10-31
  • I'm not sure what it means when it says 2 stage or 3 stage....what does that mean and which one should I get for home use...

    A. The Honeywell TH2110D1009 has three stages for programming. You can set it up to come on at three different temps at up to 3 different times automatically per day.
  • Does this one work with gas fireplaces (750 mv)?

    A. The Honeywell TH2110D1009 will work on a gas fireplace
  • Can this Thermostat be set to Celsius and if so, How do you do it?

    A. The Honeywell TH2110D1009 can be set to Celsius. Here's how to do it. 1) Press the up and down button at the same time and hold for 3 seconds. The display should now show a big number 1 and a small 0. 2) Now press the up or down button so that the small number changes to a 1. This is the Celsius option. 3) Now The easiest way to get out of the settup is to wait 60 seconds and the thermostat will automatically save your changes. 4) If you don't want to wait a minute, press up and down at the same time and hold for 1 second to go through the rest of the setup options, once you get to the last one pressing up and down at the same time will save the changes and exit the menue. I hope this helps.
  • is this for electric heat?

    A. The Honeywell TH2110D1009 is used for electric heat.
  • Is this used for electric heat?

    A. The Honeywell TH2110D1009 is used for electric heat.
  • Will temperature setting need to be reset after power outage?


    The Honeywell TH2110D1009 runs on batteries and is not hardwired so no, you would not have to reprogram after a power outage.

  • Is this considered "Low Voltage"?


    The Honeywell TH2110D1009 would be considered low voltage as it is only 20 to 30 volts not 120.

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