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Internet # 203539510

Model # RTH111B

Store SKU # 807920

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Horizontal Non-Programmable Thermostat

$28.98
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  • Precise temperature control of +/- 1 degree Fahrenheit
  • Deluxe non-programmable slim, compact design
  • Easy-to-read display with soft-touch buttons
  • View More Details

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Product Details

About This Product

The Honeywell Home Digital Non-Programmable Thermostat offers electronic controls and a large digital display for simple control of your heating and cooling system. It has precise temperature control of +/- 1 degree Fahrenheit. It is easy to use, easy to see and has an easy-access battery compartment.

Highlights

Product Information

Internet # 203539510

Model # RTH111B

Store SKU # 807920

Specifications

Dimensions: H 3.75 in, W 4.75 in, D 1.25 in

Dimensions

Product Depth (in.)

1.25 in

Product Height (in.)

3.75 in

Product Width (in.)

4.75 in

Details

Battery Size

AAA

Color Family

White

Control Type

Manual

Features

Battery, Low Battery Indicator

Heating & Cooling System Type

Single Stage

Included

Mounting Hardware

Operation Type

Digital

Pack Size

1

Power Options

Battery Operated

Returnable

90-Day

Thermostat Compatibility

Universal

Thermostat Shape

Rectangular

Thermostat Type

Heating and Cooling

Voltage (V)

24 V

Voltage Type

Low Voltage

Wire Configuration

4-Wire

Warranty / Certifications

Certifications and Listings

No Certifications or Listings

Manufacturer Warranty

1 year limited warranty

Questions & Answers

Pic uploaded will thermostat work with my unit
ByJul 30, 2026
1 Answer | 
Answer This Question

Hi sherwin, thank you for reaching out! We'd like to know more about your system type and current wiring installation to verify compatibility. At your convenience, please reach out to us at 1-800-468-1502, we will be happy to help.— Charlie

By|Jul 30, 2026


    Does it tell humidity?
    ByJul 23, 2026
    1 Answer | 
    Answer This Question

    Hi Mary, thank you for reaching out! The RTH111B does not include a built-in humidity sensor, so it cannot measure or display indoor humidity levels. Please let us know if you have any other questions at 1-800-468-1502. We'd be happy to help! — Charlie

    By|Jul 23, 2026


      How many wires on that thermostat
      ByJul 21, 2026
      1 Answer | 
      Answer This Question

      Hi Mike, thank you for reaching out! The RTH111B has a very simple terminal set that is compatible with the following wires: R (24 V power from heating/cooling transformer), W (Heat call), Y (Cooling compressor call) and G (Fan indoor blower call). If further questions arise, our technical support team is available and ready to assist. You can reach us 7 days a week via phone at 800.468.1502.— Charlie

      By|Jul 22, 2026


        Can I use this thermostat heat pump water source
        ByJul 12, 2026
        1 Answer | 
        Answer This Question

        Hi Mohamed, thank you for your question. We will be happy to help verifying the compatibility of this thermostat and your system, we need to know how many total wires you have and which terminals are being used on your current thermostat. Feel free to contact our tech support team at (800) 633-3991. - Maria

        By|Jul 13, 2026


          Schematic on Thermostat RTH11B
          ByJul 10, 2026
          1 Answer | 
          Answer This Question

          Hi Michael, we will be happy to guide you through the thermostat wiring and configuration. At your convenience, please contact our tech support team at (800) 633-3991. - Maria

          By|Jul 13, 2026


            Is this thermostat compatible with Braeburn thermostats
            ByJul 2, 2026
            1 Answer | 
            Answer This Question

            Hello Trotter, thank you for reaching out! We'd like to know more about your system type and current wiring installation to verify compatibility. At your convenience, please reach out to us at 1-800-468-1502, we will be happy to help.— Charlie

            By|Jul 2, 2026


              Will this work for heated floors?
              ByJun 26, 2026
              1 Answer | 
              Answer This Question

              Hi Kathy, thank you for your question. We will be happy to verify compatibility and recommend you a suitable thermostat for your system. We need to know how many total wires you have and which terminals are being used on your current thermostat. Feel free to contact our team at (800) 633-3991. - Maria

              By|Jun 29, 2026


                Is this compatible with heat pump?
                ByJun 22, 2026
                1 Answer | 
                Answer This Question

                Hi Tommy, thank you for your question. This thermostat works with single stage heat pump systems. We will be happy to help verifying the compatibility of this thermostat and your system. We need to know how many total wires you have and which terminals are being used on your current thermostat. Feel free to contact our tech support team at (800) 633-3991. - Maria

                By|Jun 23, 2026


                  Viewing 1-8 of 411

                  Customer Reviews

                  4.3 out of 5

                  • 4.3 out of 1,487 reviews
                  • 75% recommend this product
                  Filter by:
                  Showing 1-10 of 1,487 reviews
                  This is a simple, four wire thermostat (heat, cooling and fan) that is up to the task. We're using it in an RV, so it works with a 12v DC trigger circuit, as well as a 24v AC normal heating system, because of its reliance on a battery. Perfect if you have no neutral wire or no-standard low voltage relay.
                  by
                  This customer chose to rate the product and not provide text.
                  by
                  This customer chose to rate the product and not provide text.
                  by
                  • Verified Purchase
                  Great quality fit perfect
                  by
                  This customer chose to rate the product and not provide text.
                  by
                  • Verified Purchase
                  I'm so glad Honeywell still makes a simple thermostat. To start, we specifically wanted this brand. They are tried and true to their dependable products. This one is made perfect. Simple On/off switch that sits on the bottom side of the unit. Simply click it over to heat or over to cool. One switch for the fan. The screen will light up when you tap the button up or down to change the temperature settings. When it's not being adjusted, it displays the current temperature in large black numbers. Our old thermostat was starting to act up. I was instantly worried about getting something that would be overly complicated. I don't mind learning new technology, but some things, like thermostats really don't need all the unnecessary bells and whistles. I also wanted the simple switches because it's easier to adjust in my dark hallway. Green screens actually make it harder for my eyes to adjust and see what I'm doing. This thermostat was also very easy to install. It came with small label stickers to match your wires up, of for any reason you have wires that are not color coded. each position was marked with corresponding letters. After having the necessary small screw driver to loosen and tighten the wire bolts,I don't believe it took more than 5 minutes to mount,attach the wires and clip the new unit on. It's also smaller than the old unit, making it more attractive for the wall. So far everything is working well. I'm very pleased with this purchase and happy to have my air working properly.
                  by
                  • Verified Purchase
                  4 found this review helpful
                  This was a God send easy upgrade from my apartments broken 1950s mercury analog thermostat. Easy to use easy to install. Don't forget a volt meter to ensure power is off. Safety first! And you'll also need a tiny flat head to secure the wires.
                  by
                  • Verified Purchase
                  2 found this review helpful
                  We have an old home and my husband had been wanting to replace the thermostat. While we only have radiator heat, this thermostat has worked great since installing. It seems to have leveled the heat more evenly throughout our house, which is a welcome relief, especially in our upstairs where the temperature always seemed to be very warm.
                  by
                  • Verified Purchase
                  2 found this review helpful
                  Bad LED display.
                  The display is so dim that you can barely see the numbers and text.
                  by
                  Response from Resideo TeamDec 3, 2024
                  Hi Tim, we're sorry to hear you experienced this with your unit. We appreciate the feedback and will utilize your comments. -Joey resideo
                    Easy to install easy to use nice update for electric baseboard heaters
                    by
                    • Verified Purchase
                    1 found this review helpful
                    Showing 1-10 of 1,487 reviews

                    Compare Key Features

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                    Product Snapshot

                    Designed for effortless use, with digital controls and easy-to-read display for convenience.
                    DIY beginner-friendly with easy installation and user-friendly features for hassle-free setup.
                    Designed for effortless use, with a familiar dial and precise control for simple home heating.
                    Ideal for customers who want precise, simple temperature control for single-stage HVAC systems.

                    Backlit Display

                    Battery Backup

                    Number of Stages

                    Single Stage
                    Single stage
                    Single Stage
                    Single Stage

                    Temperature Range

                    +/- 1 degree Fahrenheit
                    +/- 1°F accuracy

                    Size

                    3.75 in H x 4.75 in W x 1.25 in D
                    3.9 in. H x 5.3 in. W x 1.2 in. D
                    3 in. H x 3 in. W x 1.5 in. D
                    3 in. H x 3 in. W x 1 in. D