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  • Digital Heat/Cool.
  • Large, easy to read Blacklit display.
  • Precise temperature control (+/- 1 degrees Fahrenheit).
  • For use with central gas, oil/electric furnaces, 750 Milli-volt Heating and Central Air Conditioning.
The Honeywell RTH1100B Horizontal Digital Non-Programmable Thermostat is a manually controlled thermostat that's incredibly accessible and even easier to read. Adjust your heating and cooling options through a brightly lit and stretched out screen that's battery powered. In the case of an unexpected power outage, the RTH1100B will retain its memory and remember all of the settings you had previously scheduled. Sleek and compact in design, this unit carries the additional bonus of blending flawlessly into nearly any applicable background. The RTH1100B is the ideal choice for those seeking a highly responsive thermostat that's easy to read and carries a host of beneficial features.
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RTH1100B customer reviews

Overall Rating

6 Reviews
6 customers recommend this product
Honeywell RTH1100B Horizontal Digital Non-Programmable Thermostat Reviews
Warren Gropp
March 2, 2015
Verified Purchase
Simple but works great!

Replaced an older RTH110B. Simple thermostat but works great and even has back-lighting now!

Barry Ryan
December 4, 2013
Verified Purchase
Review of RTH1100B

This unit was purchased as it was an exact replacement to the unit I already have....except that it has a backlit screen for easier night viewing. It is simple, compact, and easy to install. As usual, it has great quality like other Honeywell products.

Sylvia HAMBY
July 26, 2013
Verified Purchase

very easy and accurate to control heat and cooling.

Reuben Klickstein
December 1, 2011
Verified Purchase
Honeywell RTH1100B Review

Excellent service & thermostat works great.

Reuben Klickstein
October 25, 2011
Verified Purchase
Received wrong thermostat

I received the wrong thermostat. Your customer service did a great job of correcting the error and sent the correct thermostat for next day delivery with a prepaid return pouch.

Arthur Irwin
October 3, 2011
Verified Purchase

Ive been using this thermostat with a gas heater because it continues to work during a power failure. When I added a second stove I equipped it with the same thermostat,..good price,,,good service...prompt delivery, and an improved design. Well done!

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