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Internet #203539496

Model #RTH2300B

Store SKU #514261

5-2 Day Programmable Thermostat with Digital Backlit Display

  • Easy to use, basic operation keeps programming easy
  • Weekday/weekend programming (plus up to four periods per day)
  • Program for the weekdays and weekends based on your schedule
  • See More Details

Frequently Bought Together


Product Overview

The Honeywell Home 5-2 Day Programmable Thermostat with Backlight has a simple interface and offers separate weekday and weekend programming. It continually adjusts the pre-heating or cooling of your home so you are comfortable when you wake up, come home or at any other time you prefer.

Info & Guides

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BrandHoneywell HomeHoneywell HomeOrbitHoneywell Home
Name1-Week Programmable Thermostat with Digital Display5-2 Day Programmable Thermostat with Digital Backlit DisplayClear Comfort Programmable Thermostat with Large, Easy-to-Read Display7-Day Programmable Thermostat with Digital Backlit Display
FeaturesBattery,Low Battery IndicatorAuto Changeover,Backlit Display,Daylight Savings Time ReadyBacklit Display,Battery Back-UpBattery Back-Up,Daylight Savings Time Ready,Removable Interface
Thermostat CompatibilityUniversalUniversalFurnaceUniversal
Wire Configuration4-Wire4-Wire4-Wire4-Wire
Control TypeManualManualDialManual
Heating & Cooling System TypeSingle Stage2 StageSingle StageSingle Stage
Power OptionsHardwiredHardwiredHardwiredHardwired
Thermostat ShapeRectangularRectangularRectangularRectangular
Voltage TypeLow VoltageLow VoltageLow VoltageLow Voltage
IncludedMounting HardwareMounting HardwareNo Additional Items IncludedMounting Hardware
View ProductView ProductView ProductView Product



Display height (in.)
1 in
Display width (in.)
1.75 in
Product Depth (in.)
Product Height (in.)
Product Width (in.)


Battery Power Type
Battery Size
Color Family
Control Type
Auto Changeover,Backlit Display,Daylight Savings Time Ready
Heating & Cooling System Type
2 Stage
Mounting Hardware
Pack Size
Periods per Programmable Day
Power Options
Thermostat Compatibility
Thermostat Product Type
Programmable Thermostat
Thermostat Shape
Thermostat Type
Heating and Cooling
Voltage (v)
Voltage (volts)
Voltage Type
Low Voltage
Wire Configuration

Warranty / Certifications

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

Questions & Answers


According to the electrician, we have no "C" wire connection in my system. We have baseboard hea...

Asked by Mayette June 13, 2021

Technically No! Physically yes, after installing a transformer and relay to handle the high voltage (120 or 240 volts). Then the low voltage from the thermostat can control the relay. Otherwise only a non programmable thermostat can be used. The high voltage will destroy a positive programmable thermostat. Batteries will also need replaced frequently. All base board heaters or forced air wall heaters must be controlled by a non-programable thermostat. Check out "what thermostat must be used with a wall heater"

Can this thermostat replace Honeywell chronotherm III?

Asked by anonymous June 5, 2021

This model is compatible with the following system types. Gas, oil or electric furnace Central air conditioner Hot water system with, or without, pump Millivolt system Central heating and cooling Heat pump without auxiliary heating

can it be set to changover between heat and cool automatically

Asked by kevin April 21, 2021


Does this need a C wire to work?

Asked by Kaitlin April 20, 2021

No just installed it as is

Will this work on a split system?

Asked by Doug April 11, 2021

Hi. You can download the manual from the Home Depot product page and it will tell you what systems this can be used on. I have a heat pump and it works great. Just move switch to heat in winter and cool in summer.

My Honeywell Home model numbrs do not light up. Fan works but when I push arrows up and done, hea...

Asked by Queenie March 5, 2021

There are thermostats that do light up. Read info on package.

Can't read numbers on my Honeywell Home model. Unit shuts off and on and heat works but it doesn'...

Asked by Queenie March 5, 2021

The backlight only lights up when one of the buttons are touched. If it doesn't light up, then I would try new batteries. I hope this helps.

I just installed a RTH2300. Fan goes on with heater when set to auto, but fan doesn't go on when ...

Asked by Brian February 19, 2021

No, as I've found out the hard way by a very upset customer, this unit does not provide a function for the heater. Will not use it again.

In Temporary mode does this thermostat maintain the temporary settings for 2 hours then returned ...

Asked by Coach February 11, 2021

It will return to the programmed setting at the next interval.

Is this compatible with a heat pump system

Asked by Sam February 9, 2021

I think so. It gives instructions for both.

5-2 Day Programmable Thermostat with Digital Backlit Display - page 2

Customer Reviews

  • 4
    out of 1,818 reviews
  • 73% recommend this product
Filter by:
Showing 1-10 of 1,818 reviews
I haven’t had it long, but it seems to work great. I purchased it because my old one was off by ...
I haven’t had it long, but it seems to work great. I purchased it because my old one was off by 4 degrees and I wasn’t sure of its accuracy. This thermostat was $25 and is programmable for differing day and night temperatures, which is the feature I like most. It also can be programmed differently on the weekend. I’m hoping the nighttime feature will save some money long term. It is easy to install, just follow the included instructions.
Poor Quality Control
I've noticed that this model has varying quality controls: the one I bought previously lasted reliably for years, but the next iteration of the same model often says "Heat On" but fails to engage the boiler, and allows my heat differential to drop several degrees (right now it's 61F in my place, and it's supposed to be 70F). i'm in the middle of New England winter, and some days I wake up shivering and have to huddle in a room with a space heater till the thermostat decides to hail the boiler. Pretty miserable now that I'm at home 24/7 under quarantine. I'm an engineer; I understand sometimes you've got to troubleshoot a product. I've gone through almost every relevant internet resource to try and correct this issue, and I even paid to have a professional come over to look at the thermostat and boiler. I'm on my second replacement, which failed even sooner than the first one (first model started malfunctioning the week after the warrantee expired; Honeywell gave me a replacement, which started showing issues after the first month). Advice: I would look at the form factor of the device: if the text on the front says "Honeywell Home", it's one of the more reliable iterations of this model. If it just says "Honeywell", then good luck. Honeywell used to take pride in their brand, but now they just pass any of my complaints over to Resideo Technologies and wash their hands of the problem.
by Usgan
It is cheaper than everything else for a reason
Both my original purchase and the return replacement had the same very obvious defect in their displays. I returned everything and got my money back. If you're only after functionality and nothing else, this might do it for you (I say "might" because of functional issues other users have encountered). Otherwise, give your money to a company with better QC and save yourself some frustration.
by Nathan
Response from Resideo TeamDec 9, 2020
Hi Nathan,
Thank you for taking the time to rate the Honeywell Home 5-2 Day Programmable Thermostat, we have shared your comments with the appropriate team for future improvements. resideo
3 people found this helpful
Very easy to install and looks good.
Very easy to install and looks good.
by Steph
Manufacturer is Not Inspecting
I purchased this unit. Opened it up and read the instructions. Labeled the wires from the wall, then removed the old unit. Screwed the new mount to the wall and began to loosen the screws of the wire inputs. Started to insert the wires after loosening the screws; however, the screws for the “R” and “RC” inputs would not loosen. After many tries, I managed to loosen the “RC” input. The “R” would not loosen at all. Tried multiple times, but no success. Returned the unit to the store and exchanged for the same unit. After opening the box, I immediately tried to loosen the “R” screw-would not loosen. Suffice it to say, I will be returning this unit and will look for another manufacturer because I have lost faith in Honeywell when it comes to thermostats.
by Postershow
11 people found this helpful
Easy to install and set
Easy to install and set
by Len
1 person found this helpful
Easy to follow instructions
Replaced a 10 year old digital White Rogers thermostat... Home Depot had all Honeywell.. I picked this one for having the backlighting and week and weekend programmable. Priced approximately only 25.00. Installed in approximately 15 minutes.. works great!
by Ralph
4 people found this helpful
1. Does not with heat pump system WITH AUX HEAT. I wished it printed bigger on the box 2. Yeah, i...
1. Does not with heat pump system WITH AUX HEAT. I wished it printed bigger on the box 2. Yeah, it is a pain in the rear to remove and change battery. It will pop out with a big head screw driver. IT IS NOT the tab that hold it to tight, it is the electrical PINS. I ripped the unit off the wall trying to remove it. 3. Yeah it can be used, for a $24 it not bad of a value. Just open it, use epoxy and glue all the pieces together minus the base plate. Install using heavy duty anchor just in case someone doesn't know to use a flat head crew driver to remove it... and yank it off the wall by accident. 4. Time is money and I wasted 2 hours on this piece of work...blowing and hunting down my unit's fuse It is a wallet saver. Buy it, use it, but know what you getting into. I will keep mine for experimental projects I have in mind. I wish Honeywell a well established company would not go this low on design, it just ruins the reputation.
by Liem
2 people found this helpful
Great value
Very easy to install and works well. Great value for price. I would recommend for basic programmable thermostat.
by Loaski
3 people found this helpful
Don’t buy
This was easy to install. There is to big of a difference between room temperature and setting on thermostat. Thermostat is set for 75 degrees. Furnace won’t come on until room temperature is 64 degrees. I will not buy again.
by Chris13
13 people found this helpful
Showing 1-10 of 1,818 reviews