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Item #:
6436597
Honeywell YTHX9421R5127WW Prestige IAQ Redlink Internet Gateway Thermostat Kit
87% of respondents would recommend this to a friend
Item #:
6436597
€ 510
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Imported from USA store
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Only 2 items left in stock.
Order now and get it around Monday, September 07
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The Prestige IAQ thermostat is a versatile and customizable thermostat that is suitable for residential or light commercial use, and it offers commercial features such as occupied and unoccupied language, schedule holidays and custom events, remote setback, economizer, and time of day.
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What Stands Out
Advanced Control
The Honeywell Prestige IAQ thermostat offers precise temperature control and customizable settings, allowing users to optimize their home environment effortlessly for comfort and energy savings.
Smart Connectivity
Equipped with Redlink technology, this thermostat connects seamlessly to smart devices, enabling users to manage their heating and cooling systems remotely from anywhere via their smartphones.
Comprehensive Monitoring
With integrated indoor air quality monitoring, the thermostat helps maintain a healthy living space by providing alerts and recommendations, thus enhancing overall well-being and comfort.
Product Details
| Controller Type | Touchpad |
| Additional Features | Programmable |
| Specific Uses For Product | Heat Pump |
| Temperature Control Type | Cooling, Heating |
| Connectivity Technology | Wi-Fi |
| Power Source | Corded Electric |
| Voltage | 24 volts |
| Display Type | Manual |
| Control Type | Touchpad Control |
| Control Method | Remote |
| Connectivity Protocol | RedLINK |
| Mounting Type | Wall Mount |
| Color | Multicolor |
| Product Style | Custom |
| Item Weight | 1.1 kg |
| Brand Name | Honeywell |
| Model Name | YTHX9421R5127WW 11588123 |
| Included Components | Thermos |
| Model Number | YTHX9421R5127WW |
| UPC | 085267136945 |
| Global Trade Identification Number | 00085267136945 |
| Manufacturer | Honeywell |
| Number of Items | 1 |
| Unit Count | 1 Count |
| Number of Packs | 1 |
| Manufacturer Part Number | YTHX9421R5127WW/U |
| Material Type | Acrylonitrile Butadiene Styrene (ABS), Plastic |
| Brand | Honeywell |
| Special Feature | Programmable |
What's in the box
Thermos
Who Should Buy?
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Smart Home Enthusiasts
Users who want to integrate their thermostat with other smart home devices will benefit from its advanced features.
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Energy Conscious Users
Individuals looking to optimize energy usage and reduce utility bills will find the energy-saving features advantageous.
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Multi-Zone Systems
Homeowners with multiple heating and cooling zones can conveniently manage their environment with this sophisticated system.
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Basic Users
Those seeking simple heating and cooling controls may find the complex features overwhelming and unnecessary.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What features does the Honeywell YTHX9421R5127WW thermostat offer?
Answer: The Honeywell YTHX9421R5127WW comes with a variety of advanced features designed for optimal indoor climate control. It includes a touchscreen display, Wi-Fi connectivity, and intuitive programming capabilities. Users can remotely adjust their home temperature via a smartphone app, allowing for convenience and energy savings. The humidity control feature is also a highlight, enabling a comfortable living environment. For instance, during the hot months, you can set it to maintain a lower humidity level, providing a cooler sensation even at higher temperatures. -
Question:
How do I install the Honeywell Prestige IAQ Thermostat?
Answer: Installing the Honeywell Prestige IAQ Thermostat involves a few straightforward steps, starting with turning off the power to your HVAC system. Next, you remove the old thermostat and mount the new one on the wall. Follow the color-coded wiring instructions provided in the kit for connecting each wire correctly. Finally, power on the system and configure it through the user-friendly interface. This setup allows you to customize heating and cooling schedules based on your lifestyle. For example, you could program it to lower temperatures during work hours and warm up the space before you arrive home. -
Question:
Can the Honeywell YTHX9421R5127WW thermostat work with my current HVAC system?
Answer: Yes, the Honeywell YTHX9421R5127WW is compatible with a wide range of HVAC systems, including gas, electric, and heat pump systems. Ensure that you check the compatibility list in the user manual to confirm, as it supports both single-stage and multi-stage heating and cooling setups. This versatility makes it a suitable choice for different home environments, allowing users to take advantage of smart technology regardless of their current heating or cooling systems. -
Question:
What is the Redlink technology in this thermostat?
Answer: Redlink technology is a proprietary feature of Honeywell that enables seamless remote control of your thermostat via the internet. It allows users to monitor and adjust home temperatures from anywhere using a smartphone or tablet app. This innovation enhances home comfort by giving flexibility, particularly beneficial for those who travel often or have unpredictable schedules. Users could set the thermostat to maintain a comfortable climate while away, then arrive home to a perfectly adjusted home environment. -
Question:
Does this thermostat support multi-zone heating and cooling?
Answer: Absolutely! The Honeywell YTHX9421R5127WW supports multi-zone control, allowing you to manage different areas of your home independently. This feature is particularly advantageous for larger homes or spaces with varying heating and cooling needs. For instance, you could keep the bedrooms cooler at night while ensuring the living room remains warm during the day. This capability not only increases comfort but can also lead to more efficient energy usage. -
Question:
Is the Honeywell Prestige IAQ thermostat easy to use?
Answer: Yes, the Honeywell Prestige IAQ Thermostat is designed with user convenience in mind. Its large, intuitive touchscreen display provides straightforward access to settings and schedules. Navigation is simplified, allowing quick adjustments without diving into complicated menus. Users can easily program schedules, view energy usage, and access other features through the easily readable interface. For example, a user could effortlessly adjust the schedule for a holiday or special event with just a few taps on the screen. -
Question:
What type of connectivity options does it have?
Answer: The Honeywell YTHX9421R5127WW thermostat features robust connectivity options including Wi-Fi and supports mobile access through the Honeywell Home App. This connectivity allows for control from virtually anywhere, making it convenient to adjust heating or cooling settings on the go. For instance, if you forgot to adjust the temperature before leaving for vacation, you can do so from your smartphone, ensuring your home stays comfortable without unnecessary energy usage. -
Question:
What are the energy-saving features of this thermostat?
Answer: The Honeywell YTHX9421R5127WW incorporates several energy-saving features, such as intuitive scheduling and adaptive recovery. With scheduling, users can set specific times for heating and cooling, decreasing energy consumption when homes are empty. Adaptive recovery optimizes the system's heating or cooling efficiency, ensuring your home reaches the desired temperature in an efficient manner. For example, if you program a lower temperature during the day while at work, it can adjust itself to be adequately warm by the time you return home. -
Question:
Where can I buy the Honeywell YTHX9421R5127WW Prestige IAQ Redlink Internet Gateway Thermostat Kit?
Answer: You can buy the Honeywell YTHX9421R5127WW Prestige IAQ Redlink Internet Gateway Thermostat Kit at Ubuy. They offer a reliable platform with various purchasing options, ensuring you can easily find this advanced thermostat model and have it delivered to your door in Ireland.
Honeywell Programmable YTHX9421R5127WW Editorial Review
## Honeywell YTHX9421R5127WW Prestige IAQ Redlink Internet Gateway Thermostat Kit The Honeywell YTHX9421R5127WW Prestige IAQ Redlink Internet Gateway Thermostat Kit has garnered Considerable attention from customers looking to elevate their HVAC control systems. Users appreciate the opportunity to upgrade from older models, such as the VisionPRO IAQ, to gain features like wireless remote monitoring and control. Many have found the installation process relatively straightforward, even for those without a professional HVAC background. The intuitive setup, although occasionally reliant on external research for certain configurations, allows users to feel confident in their DIY capabilities. With a sleek display and a host of advanced features—such as integration with outdoor temperature sensors and the ability to set alerts for temperature limits—users find that this unit not only enhances their control over indoor climates but also aids in maintaining system efficiency. The ease of use via the Honeywell app is another advantage, facilitating adjustments even when users are away from home, though a few customers have noted that the app could have a more modern interface. However, while the Honeywell thermostat offers rich features, it is not without its drawbacks. Some customers compare it unfavorably to smart thermostats like Nest or Ecobee, citing a less polished user experience in terms of interface design and responsiveness. Additionally, issues have been reported with the initial functionality of control units, although these instances appear to be exceptions rather than the rule. In summary, the Honeywell YTHX9421R5127W is a solid choice for users seeking sophisticated HVAC control with ample customization options and remote access capabilities, despite some critiques regarding its interface and initial product performance. ### Pros and Cons **
Customer Reviews & Ratings
120 customers ratings
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5 Star
75%
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4 Star
9%
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3 Star
7%
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2 Star
4%
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1 Star
5%
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Pros
- Intuitive installation and setup for both professionals and DIYers.
- Versatile features including temperature alerts and multiple sensor compatibility.
- Attractive display and easy-to-use mobile app for remote control.
- Solid performance in maintaining and monitoring HVAC systems.
Cons
- User interface less sophisticated compared to competitors like Nest and Ecobee.
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
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Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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SAO JOHN
Verified buyer
“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
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- 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.
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€ 510
Order now and get it around Monday, September 07
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Only 2 items left in stock.
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