Model # RTH5100B

Internet #203186916

Honeywell Deluxe Digital Non-Programmable Thermostat
0085267338509

Honeywell

Deluxe Digital Non-Programmable Thermostat

  • Works with heating, cooling and heat pumps
  • Large, backlit display shows room temperature
  • Set temperature and current time all at once
$ 44 08 /each
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Frequently Bought Together

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Product Overview

  • Works with heating, cooling and heat pumps
  • Large, backlit display shows room temperature
  • Set temperature and current time all at once
Honeywell's RTH5100B Deluxe Digital Non-Programmable Thermostat offers simplicity, comfort and value that's easy to see. It's large screen size and wide variety of features it apart from other non-programmable thermostats. Even better, it's easy to install and use.
  • Easy access battery compartment
  • Accurate temperature control of +/-1°F for consistent comfort
  • Ability to automatically change from heat to cool
  • Temperature range stops: 40 to 89°F heating temperature range; 51 to 99°F cooling temperature range stops
  • Does not work with: electric baseboard heat (120-240-Volt), heat pumps with auxiliary heat or multi-stage heating/cooling systems
  • How to choose the right thermostat for your home
  • Click here for more information on Electronic Recycling Programs

Product Overview

  • Works with heating, cooling and heat pumps
  • Large, backlit display shows room temperature
  • Set temperature and current time all at once
Model #: RTH5100B
Internet #: 203186916

Honeywell's RTH5100B Deluxe Digital Non-Programmable Thermostat offers simplicity, comfort and value that's easy to see. It's large screen size and wide variety of features it apart from other non-programmable thermostats. Even better, it's easy to install and use.

  • Easy access battery compartment
  • Accurate temperature control of +/-1°F for consistent comfort
  • Ability to automatically change from heat to cool
  • Temperature range stops: 40 to 89°F heating temperature range; 51 to 99°F cooling temperature range stops
  • Does not work with: electric baseboard heat (120-240-Volt), heat pumps with auxiliary heat or multi-stage heating/cooling systems
  • How to choose the right thermostat for your home
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Price
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$44.08 /each
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Name Digital Non-Programmable Thermostat Deluxe Digital Non-Programmable Thermostat Backlit Display Non-Programmable Thermostat Digital Non-Programmable Thermostat
Brand Honeywell Honeywell Honeywell Emerson
Ratings (401) (184) (35) (1)
Operation Type Digital Digital Digital Digital
Features Battery Operated,Low Battery Indicator Automatic Heating/Cooling Changeover,Backlit Display,Battery Back-Up,Battery Operated,Low Battery Indicator Automatic Heating/Cooling Changeover,Backlit Display,Battery Operated,Low Battery Indicator Automatic Heating/Cooling Changeover,Backlit Display,Battery Back-Up,Filter Monitor,Lockable
Thermostat Type Heating and Cooling Heating and Cooling Heating and Cooling Heating and Cooling
View Product View Product View Product View Product

Specifications

Dimensions

Display height (in.)
1.25
Display width (in.)
2
Product Depth (in.)
1
Product Height (in.)
3.5 in
Product Width (in.)
4.5 in

Details

Battery Power Type
Alkaline
Battery Size
AAA
Color Family
White
Color Family
Whites
Features
Automatic Heating/Cooling Changeover,Backlit Display,Battery Back-Up,Battery Operated,Low Battery Indicator
Included
Thermostat
Operation Type
Digital
Returnable
90-Day
Shape
Rectangle
Thermostat Compatibility
24-Volt Heating & Aiir Conditioning System
Thermostat Product Type
Non-Programmable Thermostat
Thermostat Shape
Rectangular
Thermostat Type
Heating and Cooling
Voltage (v)
24v
Voltage (volts)
24

Warranty / Certifications

Certifications and Listings
No Certifications or Listings
Manufacturer Warranty
1 year limited warranty

Specifications

Dimensions

Display height (in.)
1.25
Display width (in.)
2
Product Depth (in.)
1
Product Height (in.)
3.5 in
Product Width (in.)
4.5 in

Details

Battery Power Type
Alkaline
Battery Size
AAA
Color Family
White
Color Family
Whites
Features
Automatic Heating/Cooling Changeover,Backlit Display,Battery Back-Up,Battery Operated,Low Battery Indicator
Included
Thermostat
Operation Type
Digital
Returnable
90-Day
Shape
Rectangle
Thermostat Compatibility
24-Volt Heating & Aiir Conditioning System
Thermostat Product Type
Non-Programmable Thermostat
Thermostat Shape
Rectangular
Thermostat Type
Heating and Cooling
Voltage (v)
24v
Voltage (volts)
24

Warranty / Certifications

Certifications and Listings
No Certifications or Listings
Manufacturer Warranty
1 year limited warranty

Questions & Answers

will this thermostat automatically switch between heat and cooling?

I have a four wire system, the current old thermostat has to be manually switched between heat/cool. Will this one just do it automatically to keep the desired temp? or do I need to get the lesser model that has the manual switch?
Asked by: clipclop
Yes, you can program the thermostat to switch between heating and cooling to maintain a desired temperature range. To avoid possible compressor damage, do not use Auto Changeover if the outside temperature drops below 50 ºF (10 ºC).
Answered by: Honeywell Support
Date published: 2017-02-15

will it work without the batteries using 24 volt ac

will it work without the batteries using 24 volt ac
Asked by: sandy
It depends on if you have an extra wire that is not required in regular installation. Instructions will require the connection of red, yellow, green and white. If you are able to locate an extra wire (most often blue), attach this to the common (C) terminal on the thermostat. This will allow for continuous power to the thermostat so it will function without batteries. Without this extra wire, you will need batteries. The 24 volt red wire runs the power to furnace transformer and is not a continuous power source as it only is hot when furnace is running. Also, if you don't use batteries and the main power goes out, the display will go blank indicating a power failure at the furnace. Sometimes the extra wire is tucked into the wall if not used with existing thermostat. Hope this helps.
Answered by: Arthur1031
Date published: 2018-09-26

how do you change the battery

how do you change the battery
Asked by: niss
There is a battery compartment behind the unit that slides out. Very easy to change batteries. Takes 2 AAA batteries.
Answered by: UndeservingFavor
Date published: 2018-08-04

what is battery life with 2 wire heat only no c wire

what is battery life with 2 wire heat only no c wire
Asked by: yogi
Mine is a heating and cooling thermostat. Mine has been running since I bought it. I don’t know if 1 wire makes any difference.
Answered by: Owner
Date published: 2018-09-02
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Customer Reviews

Deluxe Digital Non-Programmable Thermostat is rated 4.7 out of 5 by 184.
Rated 5 out of 5 by from For those who couldn't find auto switchover feature - it is turned off by default and must be ena... For those who couldn't find auto switchover feature - it is turned off by default and must be enabled via advanced settings - please read the manual carefully at the end of page 7 and entire page 8 (highlighted manual sections are attached, "Use and Care Manual" link in the "Product Overview" section http://www.homedepot.com/catalog/pdfImages/51/51c44933-3051-4aa1-bf4f-ea7921c5f81c.pdf). Easy to install - although was a little hard pulling off the back plate... Pull gently but firmly - just needs a nudge... Just installed it - working quite nicely, hopefully will continue working without problem!
Date published: 2017-03-11
Rated 4 out of 5 by from Easy to install, easy to use. The main reason I purchased a new thermostat was to get ride of the programmable one we had. The reason I picked this particular one is because of the large easy to read display. It is easy to read to change the temperature, the numbers are huge. The only problem I had was that the words for the "cool", "heat" and "off" are written so small you can't read them. This is why I gave 4 stars instead of 5. The back-light is brighter than I expected, when you push one of the buttons it lights up bright and the contrast is great so you can see it real easy, better than I expected. Push the up button and the temp goes up, push the down and it goes down, easy.
Date published: 2016-03-15
Rated 5 out of 5 by from So glad I replaced my old thermostat. My A/C would... So glad I replaced my old thermostat. My A/C would run for extended periods before shutting off. I knew the t-stat was old and could possibly be the issue. I ordered this Honeywell thermostat and it's made a huge difference! A/C is cycling much more efficiently now and I'm hoping my next electric bill will reflect the change. I like the dual temperature display (set point and actual room temp), and the back light makes it very easy to read. The instructions were very clear and made the installation "dummy-proof". I would definitely recommend it to anyone looking for a simple, quality thermostat.
Date published: 2017-06-17
Rated 5 out of 5 by from Easy Set and forget - Automatic Switch from heat to cool Good documentation for easy install of heating and cooling control. Very simple to set up for auto switching between heat and cool. Set "heat" to turn-on temperature ( eg: 70 degrees) Set "cool" to turn-on temperature (eg: 74 degrees) Now your home will heat when temp is below 70, and cool when temp is over 74. Could not be simpler! Only restriction is that heat and cool setting must be at least 3 degrees apart (with cooling set to the higher temperature).
Date published: 2013-01-23
Rated 5 out of 5 by from Works perfectly and very simple to operate I purchased this digital non-programable thermostat for my elderly uncle who did not want to deal with the set up of the more common programable type thermostat. This unit has a digital readout which eliminates the guesswork of setting the old slide bar type thermostat to the desired temperature. Up-down arrows set the temperature. Works for both heating and cooling. Easy to install. SImple to operate. Perfect.
Date published: 2013-11-12
Rated 4 out of 5 by from Simple to install and even simpler to use. As an older couple who try saving money by DIY, I found this product very easy to install and to my real surprise, as advertised,even easier to to operate. No confusing programming requirements. Great for an older person like myself. Want it cool,turn on cool. Want it warm, turn on warm. Its that simple and really does work.
Date published: 2013-08-07
Rated 4 out of 5 by from Appears to be a good product. Easy to install and to set up for other than the default operation. When it said it was backlighted, I assumed it was backlighted continuously and that the backlighting power was derived from the 24 V on the thermostat wiring. It is only backlighted for a few seconds when the light button has been depressed, powered presumably by the installed battery.
Date published: 2012-10-31
Rated 5 out of 5 by from Great Product The thermostat was easy to install. It keeps an accurate temperature to within 1 degree. I wanted non-programmable so it would be easier to operate but I also wanted a backlit display model. This one has both features. There's also a removable battery holder for easy replacement.
Date published: 2014-07-22
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