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New! Honeywell Home Programmable Thermostat, Single-Stage, 1 Heat/1 Cool Compatibility, Flexible Schedule, X2P, White, RTH21B
New! Honeywell Home Programmable Thermostat, Single-Stage, 1 Heat/1 Cool Compatibility, Flexible Schedule, X2P, White, RTH21B
New! Honeywell Home Programmable Thermostat, Single-Stage, 1 Heat/1 Cool Compatibility, Flexible Schedule, X2P, White, RTH21B
New! Honeywell Home Programmable Thermostat, Single-Stage, 1 Heat/1 Cool Compatibility, Flexible Schedule, X2P, White, RTH21B
New! Honeywell Home Programmable Thermostat, Single-Stage, 1 Heat/1 Cool Compatibility, Flexible Schedule, X2P, White, RTH21B
New! Honeywell Home Programmable Thermostat, Single-Stage, 1 Heat/1 Cool Compatibility, Flexible Schedule, X2P, White, RTH21B
New! Honeywell Home Programmable Thermostat, Single-Stage, 1 Heat/1 Cool Compatibility, Flexible Schedule, X2P, White, RTH21B
Optimize your comfort with personalized scheduling and stylish customizable accents.
New! Honeywell Home Programmable Thermostat, Single-Stage, 1 Heat/1 Cool Compatibility, Flexible Schedule, X2P, White, RTH21B
Item #: 121670623

New! Honeywell Home Programmable Thermostat, Single-Stage, 1 Heat/1 Cool Compatibility, Flexible Schedule, X2P, White, RTH21B

Item #: 121670623

€ 49

€ 55

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from US

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Order now and get it around Wednesday, June 24
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Optimize your comfort with personalized scheduling and stylish customizable accents.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

Flexible Scheduling
Easily set custom heating and cooling schedules to match your lifestyle, ensuring optimal comfort while saving energy costs.
Single-Stage Compatibility
Designed specifically for single-stage heating and cooling systems, maximizing efficiency and performance for homes with standard setups.
User-Friendly Interface
Simple controls and a clear display make it easy for anyone to program and adjust settings, enhancing user experience and satisfaction.

Product Details

Shop New! Honeywell Home Programmable Thermostat, Single-Stage, 1 Heat/1 Cool Compatibility, Flexible Schedule, X2P, White, RTH21B online at a best price in Lithuania. B0DSGF9GDJ
  • CUSTOMIZE: Choose to receive change air filter reminders, change out the decorative accent color with interchangeable white and gray accent pieces, and select display settings to optimize this thermostat for home. The RTH21B is a directly replacement the RTH2510, and replacement for the RTH2410 offering personalized programming of 7-day, 5-1-1 day, 5-2 day or 1 week schedule options
  • SCHEDULE: Personalize programming in 7 day, 5-1-1 day, 5-2 day or 1 week options - there's even a non-programmable option
  • EXPERIENCE: A large screen and clear font enhance daily use
  • INSTALLATION: The Honeywell Home UWP wall plate provides an easy install process and simplifies future device upgrades
  • COMPABILITY: 1 Heat/1 Cool, 750 mV, hot water heat, forced air (gas, oil, or electric) [does not work with electric baseboard heat (120-240V)]
  • POWER: 2 AA batteries (not included)
Controller TypePush Button
Additional FeaturesProgrammable, Flexible Scheduling, Change Filter Reminder
Specific Uses For ProductHome Heating and Cooling Control
Temperature Control TypeProgrammable
Power SourceBattery Powered
Display TypeLCD
Control MethodTouch
Mounting TypeWall Mount
Smart Home CompatibilitySmart Home Compatible
ColorWhite
Product StyleSingle-Stage Compatible
Item Dimensions D x W x H1.7"D x 6.5"W x 8.8"H (4.3 x 16.5 x 22.4 cm)
Item Weight0.82 Pounds (370 grams)
Brand NameHoneywell Home
Model NameRTH21B
Included ComponentsWall Plate, Temperature Sensor
Model NumberRTH21B
UPC194159017368
Global Trade Identification Number40194159017366
ManufacturerResideo
Manufacturer Part NumberRTH21B
Item Type NameThermostat
Unit Count1.0 Count
BrandHoneywell Home
Product Dimensions (L x W x H)1.7"D x 6.5"W x 8.8"H (4.3 x 16.5 x 22.4 cm)
Special FeatureProgrammable, Flexible Scheduling, Change Filter Reminder

Who Should Buy?

Suitable For
  • Busy Professionals

    Ideal for individuals with hectic schedules who want customizable temperature settings to optimize comfort and energy savings.

  • Budget-Conscious Users

    Great for those looking to reduce energy costs with programmable features controlling heating and cooling efficiently.

  • Basic HVAC Systems

    Perfect for homes with single-stage HVAC systems needing straightforward, reliable temperature management without complex features.

Not Suitable For
  • Multi-Stage Systems

    Not suitable for homes with multi-stage heating and cooling systems requiring advanced thermostatic control for efficiency.

  • Smart Home Users

    Lacks smart connectivity features needed for home automation, making it less appealing for tech-savvy users.

  • Complex Climate Needs

    Inadequate for regions needing specialized climate control due to unique heating or cooling requirements.

Product Description

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What are the key features of the Honeywell Home X2P Programmable Thermostat?

    Answer: The Honeywell Home X2P Programmable Thermostat includes features such as 1 Heat/1 Cool compatibility, a flexible scheduling system, and a user-friendly interface. This thermostat allows you to customize your heating and cooling schedule, ensuring optimal comfort while conserving energy. You can easily adjust settings based on your daily routine, making it suitable for homes with varying occupancy throughout the week.
  • Question: Is the Honeywell RTH21B compatible with smart home systems?

    Answer: The Honeywell RTH21B is designed primarily as a standalone programmable thermostat and does not have built-in Wi-Fi or smart features for remote access. However, it offers reliable temperature control for single-stage heating and cooling systems, ensuring seamless operation. Homeowners looking for basic yet effective temperature management will find it suitable for everyday use without the need for integration with smart home systems.
  • Question: How do I install the Honeywell Home X2P Programmable Thermostat?

    Answer: Installing the Honeywell Home X2P Programmable Thermostat involves turning off the power to your HVAC system, removing your old thermostat, and attaching the new thermostat using the provided wiring guidelines. Detailed installation instructions are included in the manual, which simplifies the process for DIY enthusiasts. Always consult with an HVAC professional if you're uncertain, especially to ensure compatibility with your existing heating and cooling system.
  • Question: Can the thermostat be programmed to different schedules for weekdays and weekends?

    Answer: Yes, the Honeywell Home X2P Programmable Thermostat allows users to set different schedules for weekdays and weekends. This flexibility ensures that your home remains comfortable when you are there without wasting energy when you're away. For instance, you can set a cooler temperature during the day when no one is home, and warm it up before the family returns in the evening, enhancing comfort and efficiency.
  • Question: What types of HVAC systems are compatible with the Honeywell RTH21B?

    Answer: The Honeywell RTH21B is compatible with single-stage heating and cooling systems, making it ideal for homes with straightforward HVAC setups. This includes systems like gas, oil, or electric furnaces and central air conditioning units. If you have a more complex system or multi-stage HVAC, you may need to look for a different model that accommodates those requirements.
  • Question: Does the Honeywell X2P have a battery backup feature?

    Answer: The Honeywell Home X2P Programmable Thermostat does not have a battery backup feature, as it is powered by the C-wire connection in most setups. This design ensures that the thermostat maintains its settings without interruption due to power outages. However, if a C-wire is not available in your home, a battery-operated option may be necessary for continued functionality.
  • Question: Can I manually override the programmed settings on this thermostat?

    Answer: Yes, the Honeywell Home X2P Programmable Thermostat allows for manual overrides of the programmed settings. This feature lets users adjust temperature settings on the fly, which is beneficial if your plans change unexpectedly. Simply adjust the temperature manually, and the thermostat will return to its programmed schedule after the set time period, providing you with the flexibility you need for changing situations.
  • Question: What is the display like on the Honeywell RTH21B?

    Answer: The Honeywell RTH21B features a clear and concise display that shows the current temperature, set temperature, and time. This user-friendly interface ensures that users can easily navigate through settings without any confusion. The simple layout allows for quick adjustments, making it accessible for all household members, from tech-savvy users to those seeking a straightforward experience.
  • Question: Is this thermostat energy-efficient?

    Answer: Yes, the Honeywell Home X2P Programmable Thermostat is designed to enhance energy efficiency by optimizing your heating and cooling schedules. By allowing you to program specific times for heating and cooling, it helps reduce energy use during off-peak hours or when the house is unoccupied, which can lead to lower energy bills. This feature supports environmentally conscious users aiming to minimize their footprint and save on utility costs.
  • Question: Where can I buy the Honeywell Home X2P Programmable Thermostat?

    Answer: You can purchase the Honeywell Home X2P Programmable Thermostat from Ubuy in Lithuania. Ubuy offers a wide selection of home products, including this thermostat, providing customers with the convenience of online shopping combined with reliable service. Simply visit Ubuy’s website, search for the RTH21B model, and explore the available options.

HoneywellHome Programmable RTH21B Editorial Review

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Customer Reviews & Ratings

4.5
144 customers ratings
  • 5 Star
    73%
  • 4 Star
    13%
  • 3 Star
    8%
  • 2 Star
    2%
  • 1 Star
    4%

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Pros

  • Easy to program and use
  • Compatible with various systems
  • Energy-saving features
  • Flexible scheduling options
  • Clear display and design

Cons

  • Occasional connectivity issues reported.

Product Price History

Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.