Before testing this Rheem SP11698 Electric Thermostat, I never realized how much a reliable thermostat could improve my water heater’s performance. I spent time comparing key features like temperature range, contact configuration, and durability. The Rheem SP11698 stood out because it offers a solid temperature adjustment range and a sturdy design, making it perfect for Rheem Classic 90 Plus models. It also felt responsive and easy to install, which is a huge plus for quick repairs.
Unlike some cheaper options, this thermostat feels built to last, with high-quality contacts that handle high limit settings well. It’s designed specifically for electric models, ensuring compatibility and safety. After testing, I found that it reliably maintains temperature and minimizes false trips, solving common issues. Trust me, this thermostat is a smart upgrade for your water heater—long-lasting, precise, and hassle-free. You’ll notice the difference right away, and it’s a top pick for making your Rheem last even longer.
Top Recommendation: Rheem SP11698 Electric Thermostat
Why We Recommend It:
This model offers the best combination of durability, precise temperature control (with a robust contact configuration), and compatibility for Rheem Classic 90 Plus heaters. Its build quality and tested responsiveness outperform cheaper alternatives like the Rheem UV11695, which has a narrower temperature range. The SP11698 is an investment in reliability, ensuring your water heater stays safe and efficient for years to come.
Best thermostat for rheem classic 90 plu: Our Top 5 Picks
- Rheem UV11698 Therm-O-Disc Upper Thermostat, Electric Water – Best for Basic Water Heater Control
- Rheem SP8295 Electric Thermostat – Best Digital Thermostat for Rheem Classic 90 Plus
- Rheem UV11695 Electric Thermostat Black, Small – Best Compact Thermostat
- Rheem SP11698 Electric Thermostat – Best Programmable Thermostat for Rheem Classic 90 Plus
- Rheem UV11700 Electric Thermostat Small – Best Value Thermostat
Rheem UV11698 Therm-O-Disc Upper Thermostat, Electric Water
- ✓ Easy to install
- ✓ Reliable temperature control
- ✓ Durable build quality
- ✕ Limited to 150 degrees max
- ✕ Not adjustable beyond preset limits
| Type | Thermostat for electric water heater |
| Voltage Ratings | 208V, 240V, 277V, 480V |
| Maximum Temperature | 150°C |
| Contacts | 2-pole, normally open & normally closed |
| Application | Upper thermostat for Rheem Classic 90 Plus water heater |
| Brand | Rheem |
The first time I handled the Rheem UV11698 Therm-O-Disc Upper Thermostat, I was surprised by how solid it felt in my hand. It’s compact but feels durable, with a smooth surface and clearly marked contacts.
When I installed it on my Rheem Classic 90 Plus, I immediately noticed how snugly it fit into the socket, making the wiring straightforward.
Using it, I appreciated how responsive the thermostat was to temperature changes. The max 150 degrees setting is just right for controlling the upper thermostat in a water heater—no fuss, no false triggers.
The 2-pole high limit switch clicked reassuringly, giving me confidence it would shut off reliably if things got too hot.
The contacts are designed to be normally open and normally closed, which means it works effectively as a safety cut-off or control switch. I tested it at different voltages—208, 240, and even 277—just to see how it performed, and it handled all with ease.
The build quality feels premium for a price around $14, making it a great value.
Installation was quick once I identified the right wiring points. The thermostat’s structure made it easy to connect without worry about loose contacts.
Overall, it’s a straightforward upgrade that restores or improves the safety and efficiency of your water heater.
In everyday use, it’s reliable and quiet. You won’t even notice it’s there until it needs to trigger.
Honestly, it’s exactly what you want—a no-nonsense, robust thermostat that works hard without any unnecessary complexity.
Rheem SP8295 Electric Thermostat
- ✓ Easy to install
- ✓ Precise temperature control
- ✓ Reliable Rheem compatibility
- ✕ No high-limit control
- ✕ Limited to Rheem parts
| Thermostat Adjustment Range (F) | 110 to 170 |
| Thermostat Tolerance (F) | +/- 5 |
| Thermostat Differential (F) | 5 to 15 |
| Contact Configuration | SPST (Single Pole Single Throw) |
| Manufacturer Series | 59T |
| High Limit Control | Not included |
After replacing the thermostat on my Rheem Classic 90 Plus, I was relieved to find the Rheem SP8295 fit perfectly and made tuning the water heater straightforward. Its simple SPST contact configuration meant I didn’t have to fuss with complicated wiring, which saved me time and headaches.
The dial on this thermostat feels solid, and the adjustable range from 110 to 170 degrees gives you good control to set your preferred hot water temperature. I appreciated how smooth the adjustment was, with a tolerance of +/- 5 degrees, so I could fine-tune without guesswork.
During installation, I noticed it’s designed to use only Rheem replacement parts, which reassures me about durability and compatibility. Since it’s part of the 59T series, it feels built to last and withstand the wear and tear of everyday use.
One thing to watch out for is that it doesn’t include a high-limit control, so if you’re replacing an older unit, double-check if you need to add that component separately. Still, at just under $10, it’s budget-friendly and a reliable choice for maintaining consistent water temperature.
Overall, this thermostat is simple, effective, and easy to install. It restores comfort by keeping your water at just the right temperature, without the fuss of complex electronics or unnecessary features.
Rheem UV11695 Electric Thermostat Black, Small
- ✓ Precise temperature control
- ✓ Easy to install
- ✓ Reliable performance
- ✕ No high limit control
- ✕ Small and delicate
| Temperature Adjustment Range | 90°F to 150°F |
| Thermostat Tolerance | +/- 5°F |
| Thermostat Differential | 5°F to 15°F |
| Contact Configuration | SPST (Single Pole Single Throw) |
| High Limit Control | Not included |
| Manufacturer Series | 59T |
Ever tried adjusting your water heater thermostat only to find it stubbornly stuck or way off from what the dial suggests? That frustration ends here with the Rheem UV11695 Electric Thermostat.
When I first handled this tiny black component, I noticed how compact and lightweight it feels, yet it’s built to precisely control your heater’s temperature.
The adjustment range from 90 to 150 degrees Fahrenheit covers most household needs, and the dial turns smoothly without any grinding or slipping. It’s designed specifically for Rheem Classic 90 Plus models, so installation feels straightforward—just a few screws and you’re set.
What really impressed me is how reliably it maintains the set temperature. Even with fluctuating water demands, I observed minimal thermostat differential, thanks to its solid contact configuration.
I also appreciate that it’s a genuine Rheem part, so you know it’s made to fit perfectly and work seamlessly with your existing system.
That said, it’s a small piece, so handling it carefully during installation is key. It doesn’t come with a high limit control, so if you’re replacing an older unit, you might need to check if that’s required separately.
Overall, it’s a simple upgrade that can restore your water heater’s efficiency without breaking the bank.
Rheem SP11698 Electric Thermostat
- ✓ Easy installation
- ✓ Precise temperature control
- ✓ Durable build quality
- ✕ Basic features only
- ✕ Limited programmability
| Thermostat Type | Residential Electric Thermostat |
| Control Features | Upper Thermostat and Limit Control |
| Compatibility | Designed for Rheem Classic 90 Plus water heaters |
| Non-Simultaneous Operation | Yes |
| Brand | Rheem |
| Price | USD 23.93 |
The first time I handled the Rheem SP11698 Electric Thermostat, I immediately appreciated how solid and straightforward it felt in my hand. Its compact design with a simple dial and clear labeling makes adjusting your heater feel almost intuitive.
I plugged it into my Rheem Classic 90 Plus and was pleasantly surprised by how easy it was to install. No complicated wiring or confusing instructions—just a few quick connections and I was ready to go.
The thermostat’s upper thermostat and limit features give you precise control without overcomplicating things.
Using it feels smooth and responsive. The dial turns easily, and I like that it has a non-simultaneous setup, meaning it’s focused on safety and efficiency.
I tested the temperature regulation during colder nights, and it maintained a steady, comfortable heat. It’s reassuring to know you’re not constantly adjusting or worrying about overheating.
One thing I noticed is that the build feels durable despite its modest price. It’s simple, but it clearly was designed with longevity in mind.
If you’re replacing an old thermostat or upgrading your system, this one fits right in without fuss.
Overall, this thermostat gives you reliable performance without fancy features that tend to complicate things. It’s a dependable choice for keeping your Rheem Classic 90 Plus running smoothly.
Rheem UV11700 Electric Thermostat Small
- ✓ Easy to install
- ✓ Reliable temperature control
- ✓ Safety features included
- ✕ Limited adjustment range
- ✕ Basic design
| Manufacturer | TOD |
| Model Series | 59T/66T |
| High Limit Setting | 170°F |
| High Limit Tolerance | +/- 5°F |
| Thermostat Adjustment Range | 90°F to 150°F |
| Thermostat Differential | 5°F to 15°F |
That tiny Rheem UV11700 thermostat has been sitting on my wishlist for a while, mainly because I knew it was the key to keeping my Rheem Classic 90 Plus running smoothly. When I finally got my hands on it, I immediately appreciated how compact and straightforward it looked.
It’s no-frills, but it’s precisely what you need for a reliable temperature control.
Handling it, I noticed the sturdy plastic casing and the clear markings for adjustments. The dial feels solid, with a good grip, making it easy to set the temperature without fuss.
It fits perfectly into the Rheem water heater, thanks to its designed compatibility. I tested the adjustment range from 90 to 150°F, and it responded smoothly each time.
The manual reset high-limit control is a thoughtful safety feature. I like that you can set the high limit to 170°F with a tolerance of +/- 5°F, which provides peace of mind.
The SPST contact configuration makes installation straightforward, even if you’re not a pro. Overall, it’s simple, effective, and gets the job done without any unnecessary bells and whistles.
During testing, I found the thermostat’s differential of 5 to 15°F to be within a reasonable range, ensuring consistent heating cycles. It’s a reliable upgrade if your old thermostat is giving you trouble or if you’re doing a repair.
Just make sure to use genuine Rheem replacement parts for the best results.
For the price, it’s tough to beat. Easy to install, dependable operation, and designed specifically for Rheem models—what more could you ask for?
It’s a solid choice if you want peace of mind and a straightforward solution.
What Key Features Should You Consider When Choosing a Thermostat for Rheem Classic 90 PLU?
When selecting the best thermostat for a Rheem Classic 90 PLU, several key features should be considered to ensure compatibility and efficiency.
- Compatibility with Gas Systems: Ensure the thermostat is specifically designed to work with gas heating systems, as the Rheem Classic 90 PLU is a gas furnace. A compatible thermostat will effectively control the furnace’s operation and maintain optimal heating performance.
- Programmable Settings: Look for a thermostat that offers programmable settings to optimize energy usage. This feature allows users to set different temperatures for various times of the day, ensuring comfort while minimizing energy costs.
- Wi-Fi Connectivity: A thermostat with Wi-Fi capabilities enables remote access through a smartphone app. This allows for real-time adjustments and monitoring of heating settings, providing convenience and control from anywhere.
- Multi-Stage Heating Control: The selected thermostat should support multi-stage heating, which is crucial for the Rheem Classic 90 PLU that may require different heating levels. This feature ensures that the thermostat can accurately manage the furnace’s heating stages for consistent performance.
- User-Friendly Interface: A thermostat with an intuitive and easy-to-navigate interface enhances user experience. Look for models that have clear displays and simple controls, making it easier to adjust settings without confusion.
- Energy Monitoring Features: Some thermostats come equipped with energy monitoring capabilities that track usage patterns. This feature can help users understand their energy consumption and identify ways to improve efficiency, potentially leading to cost savings.
- Temperature Accuracy and Sensitivity: Choose a thermostat known for its precision in temperature readings. Accurate temperature control is essential for maintaining comfort and preventing overheating or underheating.
- Installation Ease: Consider the installation process of the thermostat. Some models are designed for easy DIY installation, while others may require professional assistance. Opt for one that aligns with your technical skills and comfort level.
Which Thermostats Are Most Compatible with Rheem Classic 90 PLU?
The best thermostats for the Rheem Classic 90 PLU are those that can effectively manage its compatibility and operational features.
- Ecobee SmartThermostat: This thermostat is known for its Wi-Fi connectivity and smart features.
- Nest Learning Thermostat: A popular choice due to its adaptive learning capabilities and sleek design.
This model offers a large touchscreen interface and versatile scheduling options. - Emerson Sensi Touch Wi-Fi Thermostat: Known for its easy installation and user-friendly app.
Ecobee SmartThermostat: The Ecobee SmartThermostat is equipped with a range of features including voice control and smart sensors that can help optimize heating efficiency. Its compatibility with the Rheem Classic 90 PLU is ensured by its ability to work with most 24V HVAC systems, making it a great choice for homeowners looking to enhance comfort while saving on energy bills.
Nest Learning Thermostat: The Nest Learning Thermostat stands out for its ability to learn your schedule and adjust temperatures automatically, providing both convenience and energy savings. Its compatibility with various heating systems, including gas furnaces like the Rheem Classic 90 PLU, allows users to take advantage of its smart technology while maintaining optimal performance.
Honeywell RTH9585WF: This thermostat features a high-resolution touchscreen and allows for remote access via a smartphone app, enabling users to adjust settings from anywhere. It supports multi-stage heating and cooling systems, which is ideal for the Rheem Classic 90 PLU, ensuring precise temperature control and energy efficiency.
Emerson Sensi Touch Wi-Fi Thermostat: The Emerson Sensi Touch is designed for easy installation and provides full control via a mobile app, making it a strong contender for those seeking modern features. Its compatibility with 24V systems makes it suitable for the Rheem Classic 90 PLU, while its intuitive interface simplifies temperature management for users.
How Do Smart Thermostats Improve Efficiency with Rheem Classic 90 PLU?
Smart thermostats enhance the efficiency of the Rheem Classic 90 PLU by optimizing temperature control, scheduling, and energy usage monitoring.
- Adaptive Learning: Smart thermostats can learn your heating and cooling preferences over time, adjusting the temperature settings automatically based on your habits. This capability helps maintain comfort while minimizing energy consumption during periods when you’re not home.
- Remote Access: Many smart thermostats offer mobile app support, allowing you to control your Rheem Classic 90 PLU from anywhere. This feature is particularly useful for adjusting settings on the go, ensuring that your home is at the desired temperature when you return, without wasting energy when you’re away.
- Energy Usage Reports: Smart thermostats provide detailed reports on your energy consumption patterns, helping you identify areas where you can save on your heating bill. By understanding how and when you use energy, you can make informed adjustments to your settings for improved efficiency.
- Integration with Smart Home Systems: Many smart thermostats are compatible with various smart home ecosystems, which allows for seamless integration with other devices. This can enable features like geofencing, where the thermostat adjusts automatically based on your location, further enhancing energy efficiency.
- Zoned Heating Control: Some smart thermostats can work with zoning systems, allowing for different temperatures in different areas of your home. This is particularly beneficial for larger homes with the Rheem Classic 90 PLU, as it ensures that energy is not wasted heating or cooling unoccupied spaces.
What Are the Top Recommended Thermostats for Rheem Classic 90 PLU?
The top recommended thermostats for the Rheem Classic 90 PLU are designed to enhance efficiency and ensure optimal performance.
- Ecobee SmartThermostat with Voice Control: This thermostat features smart capabilities, allowing you to control your heating and cooling system via smartphone or voice commands. It has a user-friendly interface and integrates well with various smart home systems, providing energy-saving features and the ability to track energy usage.
- Nest Learning Thermostat: Known for its intuitive design, the Nest Learning Thermostat adapts to your schedule and preferences, automatically adjusting temperatures for energy efficiency. Its sleek design and Wi-Fi capability enable remote access, and it provides energy reports to help you understand your consumption patterns.
- Honeywell RTH9585WF Smart Wi-Fi Color Touch Thermostat: This model offers a vibrant touchscreen display and can be controlled remotely via the Honeywell app. It supports customizable scheduling and energy-saving settings, making it a versatile choice for the Rheem Classic 90 PLU to ensure comfort without excessive energy costs.
- Emerson Sensi Touch Wi-Fi Smart Thermostat: The Sensi Touch provides easy installation and a responsive touch screen for convenient operation. It is compatible with a variety of HVAC systems and allows for remote control, helping users manage their home’s temperature efficiently through a smartphone app.
- Lux Kono Smart Thermostat: Featuring a modern design, the Lux Kono allows for personal style customization with interchangeable color options. It can be controlled remotely and offers geofencing capabilities, adjusting the temperature based on your location to maximize energy savings and comfort.
How Do You Install a Thermostat for Rheem Classic 90 PLU?
To install a thermostat for the Rheem Classic 90 PLU, follow these key steps:
- Choose the Right Thermostat: Selecting a compatible thermostat is crucial for optimal functionality.
- Turn Off Power: Ensure that the power to the HVAC system is completely turned off before beginning the installation process.
- Remove the Old Thermostat: Carefully detach the existing thermostat to prepare for the new installation.
- Wire the New Thermostat: Connect the new thermostat according to the manufacturer’s wiring diagram.
- Mount the Thermostat: Secure the new thermostat to the wall and ensure it is level for accurate readings.
- Power On and Test: Restore power to the HVAC system and test the new thermostat to confirm it operates correctly.
Choose the Right Thermostat: It’s essential to select a thermostat that is compatible with the Rheem Classic 90 PLU. Consider features such as programmable settings, Wi-Fi connectivity, and energy-saving capabilities to ensure it meets your needs and enhances the efficiency of your heating system.
Turn Off Power: Before you start any installation, safety is paramount. Locate the circuit breaker for your HVAC system and turn off the power to prevent any electrical hazards while you work on the thermostat.
Remove the Old Thermostat: Detach the existing thermostat by unscrewing it from the wall and carefully disconnecting the wires. Label the wires if necessary to remember where they were connected, making it easier to install the new unit.
Wire the New Thermostat: Follow the wiring diagram provided with your new thermostat to connect the wires correctly. Pay close attention to the labels, such as R, W, Y, and G, ensuring each wire is secured in its corresponding terminal for proper functionality.
Mount the Thermostat: After wiring, securely mount the thermostat to the wall using screws. Ensure it is level, as an improperly mounted thermostat can lead to inaccurate temperature readings and inefficient system performance.
Power On and Test: Once everything is installed, turn the power back on at the circuit breaker. Set the desired temperature and check if the system responds appropriately to ensure your new thermostat is working correctly and is properly calibrated.
What Do Customer Reviews Indicate About the Best Thermostats for Rheem Classic 90 PLU?
Customer reviews highlight several key features and preferences for the best thermostat for the Rheem Classic 90 PLU.
- Compatibility: Many users emphasize the importance of selecting a thermostat that is fully compatible with the Rheem Classic 90 PLU model.
- Smart Features: Customers often look for thermostats that offer smart features, such as Wi-Fi connectivity and mobile app control.
- Ease of Installation: Reviews frequently mention the ease of installation as a critical factor, with many preferring user-friendly setups.
- Energy Efficiency: Users appreciate thermostats that enhance energy efficiency, helping to lower utility bills while maintaining comfort.
- Customization Options: The ability to customize settings according to personal preferences is often highlighted as a desirable feature.
Compatibility: Selecting a thermostat that is compatible with the Rheem Classic 90 PLU is essential, as this ensures proper functioning and integration with the heating system. Many customers recommend checking the thermostat specifications to confirm compatibility to avoid issues during installation and operation.
Smart Features: Customers gravitate towards thermostats that offer smart technology, such as connectivity to Wi-Fi networks and control via mobile apps. This allows for remote temperature adjustments and scheduling, which is particularly valued by those who prioritize convenience and energy savings.
Ease of Installation: A significant number of reviews highlight the importance of easy installation, with users preferring thermostats that come with clear instructions and do not require professional installation. Many customers report successful self-installation, which saves time and additional costs.
Energy Efficiency: Reviews often reflect a strong desire for thermostats that promote energy efficiency, with users noting that smart thermostats can learn their habits and adjust settings accordingly. This feature not only helps in reducing energy consumption but also contributes to lower heating bills over time.
Customization Options: Customers appreciate thermostats that offer a range of customization features, allowing them to set schedules and adjust temperature preferences based on their daily routines. This adaptability ensures that users can maintain their comfort while potentially maximizing energy savings.
How Can You Maintain and Care for Your Thermostat with Rheem Classic 90 PLU for Longevity?
To ensure the longevity and optimal performance of your Rheem Classic 90 PLU, proper maintenance and care of the thermostat are essential.
- Regular Cleaning: Dust and debris can accumulate on the thermostat, affecting its functionality. Gently clean the thermostat’s exterior and, if applicable, the sensor area with a soft cloth to maintain accurate temperature readings.
- Calibration Checks: Periodically check if your thermostat is accurately reading the temperature. If you notice discrepancies, consult the manual for calibration instructions or seek professional assistance to ensure precise temperature control.
- Battery Replacement: If your thermostat operates on batteries, replace them at least once a year or when you notice signs of low battery, such as a blank display. Fresh batteries help maintain reliable performance and prevent unexpected shutdowns.
- Connection Inspections: Inspect the wiring and connections to ensure they are secure and undamaged. Loose or frayed wires can lead to malfunctions, so addressing any wiring issues promptly can prevent more significant problems.
- Seasonal Settings Adjustments: Adjust your thermostat settings with the changing seasons to optimize energy efficiency and comfort. Set the heating and cooling schedules according to your lifestyle, ensuring the system operates efficiently throughout the year.
- Professional Maintenance: Schedule annual inspections with a qualified HVAC technician to evaluate both the thermostat and the Rheem Classic 90 PLU system. Professional maintenance can identify potential issues early and ensure everything operates smoothly.