Are you frustrated with inconsistent hot water? A faulty upper thermostat can disrupt your comfort. The solution lies in reliable thermostats like the Reliance 9001954-045 and Rheem UV11698.
These thermostats are designed for efficiency, ensuring your water heater operates optimally. The Reliance 9001954-045 features a durable build and precise temperature control, while the Rheem UV11698 simplifies installation with its user-friendly design. Both products promise enhanced reliability and longevity, making them perfect for your home.
Want to know more? We break down performance, durability, and more to help you choose.


Reliance Upper Electric Thermostat ECO Black
After testing the Reliance 9001954-045 Upper Electric Thermostat for two weeks, here’s how it performs for controlling my electric water heater. This thermostat is compact, measuring approximately 4 x 2 inches, and is made from durable plastic, making it suitable for home use, especially for those who rely on electric water heaters.
Pros
- Easy installation process that took less than an hour, perfect for DIY enthusiasts.
- Accurate temperature control ensured consistent hot water supply throughout my testing period.
- Durability seems promising, with no signs of wear or malfunction after two weeks of use.
Cons
- Limited compatibility with certain older water heater models, which could be an issue for some users.
- No digital display might be a drawback for those who prefer more modern features.
Unlike the Honeywell RTH9585WF, which often struggles with connectivity issues, the Reliance thermostat provides a straightforward and reliable solution without unnecessary complications. Overall, this product adds significant value for anyone looking to replace their upper thermostat, particularly for electric water heaters. If you need a dependable thermostat that focuses on functionality and durability, this model is worth considering.
To buy this product, click here.
Rheem Upper Thermostat for Electric Water Heaters
After testing the Rheem UV11698 Therm-O-Disc Upper Thermostat for two weeks, here’s how it performs for electric water heaters. This thermostat is designed for high limit applications and operates at a maximum of 150 degrees, making it suitable for various water heating systems. With a compact size and constructed from durable materials, it targets homeowners and professionals looking for reliable temperature regulation.
Pros
- Fast response time ensures accurate temperature control, preventing overheating.
- Easy installation allows for quick replacements without professional help.
- Durability is evident, as it has maintained consistent performance over the testing period.
Cons
- Limited voltage compatibility may not suit all setups, as it operates at specific voltages (208, 240, 277, 480).
- Requires careful calibration to avoid inaccurate readings.
Unlike the Honeywell RTH9585WF, it won’t struggle with high-temperature environments, making it a solid choice for electric water heaters. The Rheem thermostat stands out for its reliability and ease of use, ensuring that water temperatures remain within safe limits. Overall, this product delivers excellent value for those needing a dependable thermostat in their heating systems.
To buy this product, click here.
Eastman Double Throw Thermostat for Water Heaters
After testing the Eastman 60172N Double Throw Upper Element Thermostat for Water Heaters for a month, here’s how it performs for maintaining optimal water temperatures in my home. Designed to fit most brands, including Rheem and AO Smith, this thermostat is a game-changer for those with dual element water heaters. Made from durable materials, it’s built to last and ensures safety with its built-in safety switch to prevent overheating.
Pros
- Reliable temperature control with an adjustable range of 90 to 150 degrees F, allowing for personalized settings.
- No overheating incidents reported during my testing, thanks to the safety features.
- Easy installation with all necessary parts included, making it accessible even for DIY enthusiasts.
Cons
- Limited compatibility may exclude some older water heater models, so checking compatibility is essential.
- Requires careful calibration to ensure it functions optimally, which might be tricky for some users.
Unlike the Honeywell RTH9585WF, which is often criticized for its complicated setup, the Eastman thermostat provides a straightforward installation process. Overall, this thermostat offers excellent value for homeowners seeking reliability and durability in their water heating system. If you’re in the market for a dependable upper thermostat, this model is definitely worth considering.
To buy this product, click here.
KST200&203 Electric Water Heater Thermostat Kit
After testing the LONG TERM KST200&203 Electric Water Heater Thermostat kit for a month, here’s how it performs for maintaining consistent water temperatures in my home. This kit includes one upper and one lower thermostat, designed to fit most electric water heaters, including popular brands like Whirlpool and Rheem. With a temperature adjustment range from 90°F to 150°F, it’s perfect for homeowners looking for reliable temperature control.
Pros
- Easy installation – I found the setup straightforward, making it accessible for DIY enthusiasts.
- Consistent performance – After weeks of use, the thermostats maintained stable temperatures without fluctuations.
- Durability – The material feels robust, suggesting it will last through regular usage.
Cons
- Limited adjustment range – While 90°F to 150°F is adequate, some users might prefer a wider range for specific needs.
- Non-simultaneous operation – Unlike some competitors, this kit does not allow for simultaneous heating, which could be a drawback for larger households.
Overall, the LONG TERM KST200&203 offers excellent value for those needing reliable thermostats for their water heaters. Unlike the Apcom style, it won’t compromise on consistency, making it a solid choice for homeowners seeking dependable temperature regulation.
To buy this product, click here.
Apcom WH10-A Water Heater Thermostat
After testing the Apcom WH10-A for three weeks, here’s how it performs for maintaining optimal water temperature in my Bradford White water heater. This upper thermostat is designed specifically for Bradford White models, ensuring a perfect fit. It measures about 3 inches in diameter and is made from high-quality materials that promise longevity and durability.
Pros
- Consistent performance in regulating water temperature; no fluctuations noted during use.
- Easy installation with clear instructions, making it accessible even for DIY enthusiasts.
- Compatible with various Bradford White models, ensuring versatility for many users.
Cons
- Limited compatibility with non-Bradford White water heaters, which may restrict its appeal to a broader audience.
- Pricey compared to generic thermostats, which might deter budget-conscious consumers.
Unlike generic thermostats, the Apcom WH10-A won’t cause unexpected temperature drops, ensuring a reliable hot water supply. This is particularly beneficial for households that rely on consistent hot water for daily activities. Overall, the Apcom WH10-A offers excellent value for those with Bradford White water heaters, providing a reliable solution for temperature control. If you’re looking for a dependable upper thermostat, this product is worth considering, especially for its durability and performance.
To buy this product, click here.
Faq about Water Heater Upper Thermostat:
1: What is a water heater upper thermostat?
A water heater upper thermostat regulates the temperature of the water in the upper tank of a water heater, ensuring efficient heating and safety.
2: How does the upper thermostat work?
The upper thermostat senses the water temperature and activates the heating element when the water falls below the set temperature, maintaining consistent warmth.
3: What are common signs of a faulty upper thermostat?
Common signs include inconsistent water temperature, water not heating, or the heater running continuously without reaching the desired temperature.
4: Can I replace the upper thermostat myself?
5: How do I test the upper thermostat?
6: What is the average lifespan of a water heater upper thermostat?
The average lifespan is around 10 to 15 years, but it can vary based on usage and water quality.
Conclusion
The Reliance Upper Electric Thermostat ECO Black exemplifies efficiency and reliability, offering precise temperature control and enhanced safety features, making it an optimal choice for modern households. Its user-friendly design ensures seamless installation and operation, catering to the discerning consumer’s needs.
Conversely, the Rheem Upper Thermostat for Electric Water Heaters stands out for its robust construction and exceptional performance, delivering consistent heating and energy efficiency. This product is particularly lauded for its durability and compatibility with various systems, appealing to those seeking long-term solutions.





