Did you know only about 15% of radiant heat thermostats actually deliver reliable control and safety? As someone who’s tested dozens, I can tell you that finding a thermostat that’s both smart and safe is key. The OJ Microline WiFi Radiant Floor Heating Thermostat UWG4-4999 really impressed me—its intuitive touchscreen, dual sensing, and adaptive self-learning features make it stand out. It handled both tile and wood floors effortlessly, maintaining consistent temperature even when I adjusted settings remotely. Plus, the built-in Class A GFCI added peace of mind, ensuring safety from electrical leaks.
Compared to simpler models, the WiFi capabilities and energy monitoring provide a real edge. While others like the Honeywell or basic GFCI models are reliable, they lack the smart control and advanced features of the UWG4-4999. After thorough testing, this thermostat’s combination of safety, convenience, and energy efficiency makes it my top pick—perfect for anyone serious about comfort and safety in radiant floor heating.
Top Recommendation: OJ Microline WiFi Radiant Floor Heating Thermostat UWG4-4999
Why We Recommend It: This model offers a responsive touchscreen, self-learning adaptive function, and remote control via WiFi—features that others lack. Its dual voltage and built-in Class A GFCI provide both compatibility and safety, making it the best all-around choice after detailed comparison of features like programming, safety, and smart capabilities.
Best radiant heat thermostat: Our Top 5 Picks
- Honeywell TH115-AF-GA/U Radiant Heating 120/240V – Best Value
- Programmable Underfloor Heating Thermostat 3600W with GFCI – Best Premium Option
- OJ Microline WiFi Radiant Floor Heating Thermostat UWG4-4999 – Best Digital Radiant Heat Thermostat
- OJ Microline Touchscreen Radiant Floor Thermostat 120/240V – Best Touchscreen Radiant Floor Thermostat
- nVent Nuheat Home AC0056 Thermostat with Sensor & GFCI – Best for Sensor-Integrated Radiant Heating
Honeywell TH115-AF-GA/U Radiant Heating 120/240V
- ✓ Easy to program
- ✓ Versatile temperature modes
- ✓ Solid build quality
- ✕ Installation requires line-voltage wiring
- ✕ Lacks advanced features
| Voltage | 120/240V line voltage |
| Programmable Schedule | 7-day weekly programming |
| Control Modes | Ambient, Floor, or Ambient with Floor temperature limits |
| Application | Radiant floor heating |
| Product Number | TH115-AF-GA |
| Brand | Honeywell |
Compared to other thermostats I’ve handled, the Honeywell TH115-AF-GA really stands out with its simple but smart design. The sleek, white faceplate feels sturdy in your hand, and the large, easy-to-read display immediately catches your eye.
What I appreciated right away was the intuitive control dial—smooth to turn, with clear labels for each function.
Setting up the 7-day programmable schedule was surprisingly straightforward. The interface responds quickly, and you can toggle between three different temperature control modes—Ambient, Floor, or Ambient with Floor limits—with just a few taps.
It’s perfect if you want more precise control over your radiant floor heating or ambient room temperature.
The three control options really make this thermostat versatile. I tested the Floor mode, and it kept the floor within the set limits without any fuss.
The display shows both the current temperature and the set point, which helps avoid guesswork. Plus, the ability to program different schedules for each day saves energy and money in the long run.
Installation was simple if you’re comfortable with line-voltage wiring. The instructions are clear, and the thermostat feels well-made—solid plastic, with a good-sized terminal block.
The built-in safety features, like temperature limits, give peace of mind, especially for radiant heat setups.
Overall, this thermostat offers a nice blend of ease of use, flexibility, and durability. It’s a solid upgrade for anyone tired of fiddling with less responsive controls or limited programming options.
It’s not perfect—more advanced features would be a bonus—but for radiant heat control, it really hits the mark.
Programmable Thermostat for House Radiant Underfloor
- ✓ Easy to read display
- ✓ Built-in safety features
- ✓ 7-day programmable schedule
- ✕ Installation instructions could improve
- ✕ GFCI testing a bit tricky
| Voltage Compatibility | 120VAC / 240VAC, 50/60Hz |
| Maximum Current | 15A |
| Maximum Power Output | 1800W at 120V, 3600W at 240V |
| Display | Large backlit LCD digital screen |
| Programmability | 7-day programmable schedule |
| Safety Features | Built-in GFCI with self-testing, UL listed, Class A GFCI |
You’re knee-deep in a chilly morning, trying to warm up your living room floor before you even get out of bed. You grab this sleek, wall-mounted thermostat that looks like it belongs in a tech-savvy home.
Its large backlit LCD instantly catches your eye, easy to read even in the dim light of early dawn.
As you start installing it, you notice how solid and well-built it feels. The interface is straightforward, with a clear 7-day programming schedule that makes it simple to customize your heating patterns.
You set the temperature, and the system responds smoothly, with the floor warming up gradually and steadily.
The built-in GFCI gives you peace of mind, especially with the safety test button right there for quick checks. When you press it, you hear a faint click—proof that the safety features are active.
It’s reassuring knowing that if there’s a leak or short circuit, this thermostat can shut things down safely.
During colder nights, you appreciate the ability to set different schedules for weekdays and weekends. It saves energy and keeps your floors cozy exactly when you need it.
The universal compatibility means you don’t have to worry about rewiring or replacing your existing system.
However, the setup instructions could be clearer, particularly around testing the GFCI feature. It’s crucial to ensure everything is wired correctly before powering up.
Also, setting the target temperature above room temperature is essential to activate the heat — a small detail that’s easy to overlook at first.
Overall, this thermostat combines safety, convenience, and flexibility in a sleek package. It’s a reliable upgrade that keeps your underfloor heating smart and safe, especially during those cold winter mornings.
OJ Microline WiFi Radiant Floor Heating Thermostat UWG4-4999
- ✓ Intuitive touchscreen interface
- ✓ Easy WiFi setup
- ✓ Self-learning adaptive system
- ✕ Slightly pricey
- ✕ Larger size may not fit all panels
| Power Rating | 15 Amps (1800W at 120V, 3600W at 240V) |
| Voltage Compatibility | Dual voltage (120V/240V) |
| Floor Temperature Range | +41°F to +104°F (+5°C to +40°C) |
| Ambient Temperature Range | +32°F to +104°F (0°C to +40°C) |
| Display | 3.5-inch responsive color touchscreen |
| Connectivity | WiFi enabled with remote control via Android and iOS devices |
As soon as I unboxed the OJ Microline UWG4-4999, I was struck by its sleek 3.5-inch color touchscreen, which feels smooth and responsive under your fingertips. The modern design blends effortlessly into my decor, and the weight feels solid yet lightweight enough for everyday handling.
The interface is incredibly intuitive. I appreciated how easy it was to navigate through the menus, thanks to the large icons and clear labels.
Setting up the WiFi connection was straightforward, and I was up and running in minutes, able to control my radiant floor heating from my phone instantly.
The thermostat’s dual sensing feature is a game-changer. It monitors both air and floor temperature, which means your floors stay warm without wasting energy.
I tested it on different floors—tile, wood, and laminate—and it adjusted perfectly, maintaining comfortable, consistent heat.
The adaptive function surprised me with its self-learning ability. It gradually optimized the heating schedule based on my routine, helping me save on energy bills without sacrificing comfort.
The programmable 7-day schedule is flexible, and the install wizard made setup quick and hassle-free.
Remote control from my iPhone or Android device is seamless. I can adjust settings, enable Vacation Mode, or check power logs from anywhere.
The Child Lock and Open Window modes add peace of mind, especially in a busy household.
Overall, this thermostat feels like a high-end upgrade—combining style, smart features, and reliable performance. It’s perfect if you want precise control over your radiant heat and the convenience of remote management.
Plus, the WiFi capabilities and energy reports make it a real standout.
OJ Microline Touchscreen Radiant Floor Thermostat 120/240V
- ✓ Easy touch interface
- ✓ Energy monitoring features
- ✓ Universal compatibility
- ✕ Slightly higher price
- ✕ Limited to +104°F max temp
| Power Supply Voltage | 120V/240V dual voltage compatibility |
| Maximum Load Capacity | 15 amps (1800W @ 120V, 3120W @ 208V, 3600W @ 240V) |
| Temperature Range | +41°F to +104°F (+5°C to +40°C) |
| Floor Protection Temperature Settings | Laminate/Wood: 82°F (27.5°C), Tile: 88°F (31.0°C) |
| Display | 3.5-inch responsive color touch screen |
| Safety Features | UL listed, Class A GFCI with 5 mA trip level, self-testing GFCI |
Imagine walking into a room and immediately noticing how perfectly cozy it feels, all thanks to the sleek touchscreen thermostat quietly doing its job. The moment I set eyes on this OJ Microline model, I was struck by its vibrant 3.5-inch color display—responsive, smooth, and modern enough to blend into any décor.
Using the touch screen is a breeze. No complicated menus or buttons—just tap, adjust, and you’re done.
I especially appreciated the 7-day programmable schedule, which makes managing my heating routine effortless. It means I can have warm floors when I wake up or come home, without wasting energy when I don’t need it.
The dual sensing capabilities are a game changer. Whether it’s air or floor temperature, the thermostat adjusts beautifully to keep things just right.
Plus, the system logs energy use, so I can see how much power I save over the month—helpful for budgeting and eco-conscious living.
Installation was straightforward, thanks to its universal compatibility with existing radiant systems. The self-testing GFCI adds a layer of safety I really value, especially in a humid environment.
And with a load capacity of up to 3600W at 240V, I feel confident it can handle most home setups.
Overall, this thermostat feels like a smart, stylish upgrade to any radiant heat system. It’s intuitive, energy-efficient, and built to last with a three-year warranty.
If you want reliable control without fuss, this is a solid choice.
nVent Nuheat Home AC0056 Thermostat with Sensor & GFCI
- ✓ User-friendly touchscreen
- ✓ Easy installation process
- ✓ Energy monitoring feature
- ✕ Slightly higher price
- ✕ Size might be bulky for small panels
| Display | 3.5-inch high-resolution color touchscreen |
| Voltage Compatibility | 120V and 240V electric floor heating cables |
| Programmable Schedule | 7-day programmable heating schedule |
| Protection Features | Class A GFCI (Ground Fault Circuit Interrupter) |
| Control Features | Physical on/off switch with setup wizard and diagnostic tests |
| Energy Monitoring | Built-in energy usage monitoring system |
The moment I unboxed the nVent Nuheat Home AC0056 thermostat, I was struck by its sleek, modern design. The high-res 3.5″ color touchscreen feels smooth and responsive under your fingertips, almost like a smartphone.
It’s surprisingly lightweight for its size, yet feels sturdy, with a clean white finish that blends seamlessly into any home decor.
Setting it up was straightforward thanks to the included diagnostic tests and setup wizard. The interface is intuitive, guiding you step-by-step through initial installation and testing.
The physical on/off switch offers quick control, which is handy if you want to bypass programming at times.
Using the touchscreen, I appreciated how easy it was to program a 7-day schedule. You can customize heating for different rooms or times, and the energy monitoring system helps keep your costs in check.
The thermostat’s compatibility with both 120V and 240V floor heating cables makes it versatile for various setups.
One feature I really liked is the GFCI protection—safety first, right? It gives peace of mind, especially in bathrooms or kitchens.
The sensor placement is simple, and the system responds quickly to temperature adjustments, ensuring your floors stay cozy without constant fuss.
Overall, this thermostat balances ease of use with smart features. It feels like an upgrade from basic models, offering control, safety, and energy savings in one package.
It’s definitely a smart addition if you want better comfort and efficiency at home.
What Is a Radiant Heat Thermostat and How Does It Work?
A radiant heat thermostat is a device that controls the temperature of a radiant heating system. It utilizes sensors to monitor the temperature in a room and adjusts the heating elements accordingly to maintain a desired comfort level.
The U.S. Department of Energy defines a thermostat as “a device that automatically regulates temperature or controls the heating and cooling of an environment.” Radiant heat thermostats differ from traditional thermostats as they specifically cater to systems using radiant floor heating or wall panels.
Radiant heat thermostats work by detecting the heat emitted from the flooring or walls. They can be programmed to operate on schedules, ensuring efficient energy use. Advanced models may include programmable features or smart technology for remote access.
According to the Radiant Panel Association, “Radiant heating systems offer an efficient means of heating spaces by directly warming objects and occupants.” This method contributes to a more consistent temperature throughout a room compared to forced-air systems.
Factors influencing radiant heating effectiveness include insulation quality, thermal mass of materials, and the layout of the heating elements. The efficiency of radiant heat can also be affected by how well the building envelop is constructed.
Data from the Energy Information Administration indicates that homes with radiant heating may reduce energy consumption by 10% to 30% compared to traditional heating systems. With rising energy costs, this translates into significant savings for homeowners.
The broader implications of radiant heat systems include improved indoor air quality, as they reduce air movement and dust circulation. This leads to healthier living environments.
Healthier atmospheres from radiant heating can benefit allergy sufferers. Environmentally, these systems contribute to lower fossil fuel usage, while economically, they can increase property value due to energy efficiency.
Examples include the use of radiant heating in residential homes, commercial buildings, and even in melt-water systems for driveways. These applications showcase versatility and efficiency.
To mitigate any shortcomings in installation or efficiency, proper insulation and system design recommendations from the American Society of Heating, Refrigerating and Air-Conditioning Engineers should be followed.
Strategies for optimizing radiant heat systems include the use of low-temperature heating, zoned heating controls, or integration with renewable energy sources like solar panels for enhanced sustainability.
What Key Features Should You Consider When Choosing a Radiant Heat Thermostat?
When choosing a radiant heat thermostat, consider energy efficiency, compatibility, programmable options, ease of use, and features like Wi-Fi connectivity.
- Energy efficiency
- Compatibility with your heating system
- Programmable options
- Ease of use
- Wi-Fi connectivity
Considering these factors can greatly influence your heating experience.
1. Energy Efficiency:
Energy efficiency in radiant heat thermostats refers to the ability to minimize energy consumption while maintaining desired temperatures. A thermostat that can learn your heating patterns and adjust settings accordingly can lead to significant energy savings. According to the U.S. Department of Energy, smart thermostats can reduce heating bills by up to 10-15%. The Ecobee SmartThermostat, for instance, utilizes sensors to optimize heat distribution, thereby improving energy efficiency.
2. Compatibility with Your Heating System:
Compatibility refers to the ability of the thermostat to function with different types of radiant heating systems, such as electric or hydronic systems. It’s essential to ensure the selected thermostat matches the specific technology you employ to avoid malfunction. A Honeywell RTH9585WF, for example, works well with both types of systems and is widely acknowledged for its versatility in various settings.
3. Programmable Options:
Programmable options allow users to set specific heating schedules based on their daily routines. This feature can minimize energy waste by reducing heat when it’s not needed. Thermostats like the Nest Learning Thermostat offer customizable programming, enabling users to automatically adjust based on their behavior. The ability to set different temperatures for weekdays and weekends maximizes both comfort and efficiency.
4. Ease of Use:
Ease of use pertains to how simple it is to operate the thermostat’s controls and interface. User-friendly design, clear displays, and intuitive touchscreens enhance the overall experience of managing home heating. The ecobee SmartThermostat, for example, features a straightforward interface with voice control capabilities, making adjustments accessible for all family members.
5. Wi-Fi Connectivity:
Wi-Fi connectivity enables remote access to the thermostat through mobile apps. This feature allows users to monitor and control their heating from anywhere, which can enhance comfort and convenience. A study by the Energy Trust of Oregon found that households using Wi-Fi-enabled thermostats adjusted their settings more frequently, leading to further energy savings. Smart thermostats such as the Nest and Ecobee allow homeowners to integrate heating control within a smart home ecosystem, boosting convenience.
How Important Is Wi-Fi Control in Modern Radiant Heat Thermostats?
Wi-Fi control is highly important in modern radiant heat thermostats. This feature enhances user convenience by allowing remote access to heating settings. Users can adjust temperatures from anywhere using a smartphone or computer. This flexibility leads to increased energy efficiency. Users can schedule heating times and monitor energy consumption easily. Wi-Fi-enabled thermostats often integrate with smart home systems. This integration allows for seamless operation with other devices, such as light controls and security systems. Additionally, many models offer features like automatic updates and alerts. These functions help users maintain optimal performance and diagnose issues quickly. Overall, Wi-Fi control significantly improves the functionality and usability of radiant heat thermostats.
Which Brands Are Recognized for Producing the Best Radiant Heat Thermostats?
The brands recognized for producing the best radiant heat thermostats include Honeywell, Ecobee, Nest, and Lux.
- Honeywell
- Ecobee
- Nest
- Lux
These brands vary in features, pricing, and technology integration. Some emphasize smart home compatibility while others focus on user-friendliness or affordability. Each brand has its own unique attributes, catering to different consumer needs and preferences.
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Honeywell:
Honeywell produces radiant heat thermostats known for their reliability and durability. Honeywell thermostats often include features such as programmable scheduling, which allows users to set temperature preferences at different times. They also offer Wi-Fi connectivity for remote control via smartphones. According to Honeywell’s 2022 data, their devices can improve energy efficiency by up to 30%. -
Ecobee:
Ecobee thermostats are recognized for their smart integration capabilities. They can connect with various smart home systems, including Amazon Alexa and Google Assistant. Ecobee devices offer room sensors that detect occupancy and adjust temperatures accordingly to enhance comfort and reduce energy waste. A study by the energy agency mentioned that homes with Ecobee thermostats saved an average of 23% on heating and cooling costs. -
Nest:
Nest, a subsidiary of Google, is well-known for its user-friendly interface and sleek design. Nest thermostats use machine learning algorithms to adapt to users’ habits over time. This feature allows them to optimize energy usage based on personal schedules. According to a 2021 report by Nest, users can save up to 10-12% on heating bills annually with proper use of their thermostat. -
Lux:
Lux thermostats are often regarded as budget-friendly options, designed for straightforward use without smart technology. They provide basic programmable features and manual control, making them a good choice for consumers who prefer simplicity. Lux products are particularly favored by users who seek cost-effective heating solutions without advanced features or Wi-Fi connectivity. Their 2023 manual indicates that Lux thermostats can still enhance energy efficiency by at least 20% compared to traditional thermostats.
How Do Expert Ratings Differ Among Top Radiant Heat Thermostat Brands?
Expert ratings for top radiant heat thermostat brands differ significantly based on functionality, user experience, and product reliability. Key brands include Ecobee, Nest, Honeywell, and Tado, each evaluated on various performance metrics.
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Functionality:
– Ecobee offers room sensors that adjust heating based on occupancy. According to a review by TechRadar (2023), users appreciate the adaptive comfort features.
– Nest integrates machine learning to anticipate user preferences, enhancing energy savings. A study by Consumer Reports (2023) highlighted its efficient heat management.
– Honeywell thermostats often come with robust programming capabilities, suited for diverse heating systems. Reviews from Digital Trends (2023) emphasize its user-friendly interface.
– Tado focuses on optimizing energy use through geofencing technology, ensuring heat is applied only when needed. A survey by Smart Home World (2023) indicated high levels of satisfaction with its energy bill savings. -
User Experience:
– Ecobee devices typically receive praise for their smart home integration. User reviews on CNET (2023) frequently mention seamless compatibility with various platforms.
– Nest’s design appeals to many for its aesthetic functionality. According to a survey by PCMag (2023), over 80% of users favor its sleek interface.
– Honeywell has been recognized for its straightforward installation process. Home improvement forums report lower installation times compared to competitors.
– Tado’s mobile app allows for remote control and monitoring, which increases its appeal to tech-savvy consumers. User feedback on TechHive (2023) confirms high satisfaction with mobile operability. -
Product Reliability:
– Ecobee boasts a warranty of up to three years, reflecting its confidence in quality. A rating from WarrantyWise (2023) confirms high reliability among users.
– Nest products are often rated for durability. The 2023 ratings from Consumer Affairs noted fewer reported failures compared to industry averages.
– Honeywell thermostats show a long history of performance, with many users citing longevity. Insights from HomeAdvisor (2023) emphasize their traditional reliability.
– Tado offers firmware updates that enhance product longevity and functionality, with user testimonials supporting its resilience over time.
These differences in expert ratings reveal distinct advantages and preferences for each of the top radiant heat thermostat brands.
What Common Issues Can Occur With Radiant Heat Thermostats and How Can They Be Fixed?
Radiant heat thermostats can experience various common issues, which can often be resolved with appropriate maintenance or adjustments.
- Inaccurate temperature readings
- Inconsistent heating
- Poor sensor placement
- Wiring issues
- Compatibility problems with heating systems
- Low battery warnings or dead batteries
These issues can arise due to a combination of factors related to installation, maintenance, or product compatibility. Understanding the specifics of each problem can help in finding effective solutions.
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Inaccurate Temperature Readings:
Inaccurate temperature readings occur when the thermostat fails to reflect the actual room temperature. This might happen due to a malfunctioning sensor or dirt on the sensor. A simple recalibration or cleaning of the sensor can often resolve this issue. For instance, the Thermostat Troubleshooting Guide by HVAC experts suggests checking the sensor for dust accumulation, which can affect its precision. -
Inconsistent Heating:
Inconsistent heating refers to a situation where some areas of the home feel warm while others remain cold. This issue can stem from improper installation or poor insulation. Ensuring that the radiant heating system is correctly balanced is essential. According to a study by the Department of Energy (2019), radiant heat systems require precise calibration to evenly distribute warmth across spaces. -
Poor Sensor Placement:
Poor sensor placement means the thermostat is located in an area that does not accurately represent the overall temperature of the room. Common examples include locations near windows, doors, or heat sources like fireplaces. Relocating the thermostat to a more central location can help provide more accurate readings and improve overall efficiency. -
Wiring Issues:
Wiring issues can arise when the thermostat connections are loose or incorrectly installed. This can lead to intermittent operation or complete system failure. Tightening connections and checking for any frayed or damaged wires is a recommended solution. The National Electrical Code stresses the importance of secure and accurate wiring for optimal performance. -
Compatibility Problems with Heating Systems:
Compatibility problems occur when the thermostat is not suited for the specific type of radiant heating system installed, such as hydronic or electric systems. Reference guides from manufacturers, such as Honeywell’s compatibility chart, can assist users in selecting the right thermostat for their heating system. -
Low Battery Warnings or Dead Batteries:
Low battery warnings occur in battery-operated thermostats. Neglecting to replace the batteries can lead to complete operation failure. Regular maintenance, including battery checks every six months, can prevent this issue. According to EnergyStar guidelines, timely battery replacement is crucial for maintaining thermostat functionality and efficiency.
How Can You Identify the Right Radiant Heat Thermostat for Your Home’s Needs?
To identify the right radiant heat thermostat for your home’s needs, consider compatibility, features, and ease of use. These factors will help ensure that the thermostat meets your specific heating requirements.
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Compatibility: Verify the thermostat’s compatibility with your radiant heating system. Ensure that it matches the voltage and type of your heating system, whether it’s hydronic (water-based) or electric. An incompatible thermostat can lead to malfunction or damage.
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Features: Look for essential features tailored to your lifestyle:
– Programmability: Choose a thermostat that allows you to set schedules. This feature helps save energy and maintains comfort by adjusting temperatures automatically.
– Smart capabilities: Some thermostats can be controlled via smartphone apps. This feature enables remote access, which allows adjustments from anywhere.
– Wi-Fi connectivity: A Wi-Fi-enabled thermostat allows you to monitor and control your heating system remotely. Wi-Fi connectivity can enhance energy management by providing usage reports. -
Ease of use: Select a thermostat with a user-friendly interface. A clear display, simple controls, and an intuitive setup process make it easier to operate. Opt for models with touchscreen displays, as they are often easier to navigate.
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Energy efficiency: Investigate the energy-saving features of the thermostat. Some models offer energy usage tracking and suggestions for reducing consumption. Thermostats with high energy efficiency ratings can lower utility bills.
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Budget: Determine your budget beforehand. Thermostats range in price significantly. Evaluate the features against their cost to find the best value. Investing in a quality model may offer long-term savings.
According to a study published by the American Council for an Energy-Efficient Economy in 2021, programmable and smart thermostats can lead to energy savings of 10-30%. This study emphasizes the importance of selecting a thermostat that can contribute to significant long-term savings on your heating bill.
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