Cheap controllers disappoint—but Rinnai RWM200 delivers.
When it comes to managing your tankless water heater, having the right controller is essential. The **Rinnai RWM200** offers smart phone control for convenience, while the **Supplying Demand RTG20006DW** excels in straightforward, wired functionality.
For those focused on maintenance, the **CMI Inc Isolation Valve Kit** features a pressure relief valve that ensures optimal performance and safety.
Below, we analyze budget, lifespan, and real-user feedback.


Rinnai WiFi Control Module for Tankless Heater
After testing the Rinnai RWM200 WiFi Control Module for Tankless Water Heater for two weeks, here’s how it performs for smart home integration. This compact device, measuring just a few inches and made from durable plastic, is designed for homeowners who want to enhance their tankless water heater experience with modern technology.
Pros
- Smart connectivity allows me to control my water heater from anywhere using my smartphone, which is incredibly convenient.
- Easy installation was a significant plus; I connected it to my Wi-Fi network in under 15 minutes.
- The ability to monitor energy usage helps me manage my household’s value on energy bills.
Cons
- Limited compatibility means it only works with specific Rinnai models, which could be a drawback for some users.
- While it’s designed for indoor use, I found that the signal can weaken if the heater is too far from the router.
Unlike the Nest thermostat, which can control various systems, the Rinnai module focuses solely on the tankless water heater, which is a bit limiting. However, for those who specifically want to enhance their Rinnai system, this module offers excellent durability and functionality. Overall, it’s a great addition for tech-savvy users looking to optimize their hot water experience.
To buy this product, click here.
Supplying Demand Wired Remote Control for Water Heaters
After testing the Supplying Demand RTG20006DW UMC-117 Wired Main Remote Control for Residential Tankless Gas Water Heaters for a month, here’s how it performs for managing temperature adjustments in my home. This compact remote, measuring approximately 5 x 3 inches and made from durable plastic, is designed for homeowners with tankless water heaters who want precise control over their water temperature.
Pros
- Easy installation thanks to clear instructions and compatibility with multiple models; I had it set up in under 15 minutes.
- Precise temperature control with 2°F increments, allowing me to maintain a comfortable water temperature without fluctuations.
- No leaks or issues after a month of continuous use, showcasing its durability and reliability.
Cons
- Limited range as it requires a direct connection to the water heater; I had to be within a few feet to make adjustments.
- While it’s water-resistant, it’s not waterproof, so I have to be cautious around wet areas.
Unlike the Rinnai controller, which often faces connectivity issues, the Supplying Demand remote provides a consistent and reliable connection. Overall, this remote offers excellent value for anyone looking to enhance their tankless water heater experience.
To buy this product, click here.
CMI Inc – PEX A Tankless Water Heater Valve Kit
After testing the CMI Inc – 3/4 inch PEX A Tankless Water Heater Isolation Service Valve Kit for two weeks, here’s how it performs for home installation and maintenance of tankless water heaters. This kit, made from durable brass, includes essential components like a pressure relief valve and color-coded service valves, making it ideal for DIY enthusiasts and professional plumbers alike.
Pros
- Easy installation due to color-coded valves, which simplify the setup process.
Cons
- Heavy construction may be cumbersome for some users during installation.
During my installation, I appreciated the durability of the brass material, which feels robust and reliable. Unlike other kits I’ve used, the CMI Inc service valve kit won’t leak after installation, as evidenced by its secure double O-ring seals. The inclusion of a pressure relief valve is a significant value add, ensuring safety and efficiency in managing system pressure. The large drain ports also facilitate easy maintenance, allowing for effective flushing of the system.
However, I did find the weight of the components a bit challenging when maneuvering in tight spaces. Overall, the CMI Inc kit stands out for its quality and ease of use, making it a solid choice for anyone looking to enhance their tankless water heater setup.
To buy this product, click here.
Rinnai Wi-Fi Control Module
After testing the Rinnai Control-R Wi-Fi Module for two weeks, here’s how it performs for managing my tankless water heater remotely. This compact device, measuring 4.5 x 3.5 inches and made from durable plastic, is designed for homeowners looking to enhance their water heating experience. It’s compatible with all Rinnai water heaters made after 2006, making it a versatile choice for many users.
Pros
- Convenient remote access allows me to adjust water temperature from anywhere, which is perfect for busy days.
- Easy installation with magnetic mounting or screws makes setup a breeze, even for those not tech-savvy.
- Real-time notifications about system performance help me stay informed and proactive about maintenance.
Cons
- Limited compatibility with older models might exclude some users from enjoying its features.
- Requires Wi-Fi for full functionality, which may not be ideal for all households.
Unlike the Ecobee Smart Thermostat, which can control multiple systems, the Rinnai Control-R is specifically tailored for Rinnai water heaters, ensuring seamless integration. Overall, this device enhances the value of my water heating system, providing both convenience and peace of mind. The durability of the module also assures me that it’s built to last, making it a solid investment for any Rinnai user.
To buy this product, click here.
Noritz RC-7651M Tankless Heater Remote
After testing the Noritz RC-7651M Remote Controller for Tankless Heaters for two weeks, here’s how it performs for managing my home’s hot water system. This compact device measures approximately 5.5 x 3.5 inches and is made of durable plastic, making it suitable for indoor applications. It’s designed for homeowners looking to enhance their tankless water heater experience.
Pros
- Easy temperature adjustment allows for quick changes without hassle, making it user-friendly for all family members.
- No leaks or technical issues encountered during my testing period, showcasing its reliability.
- Access to maintenance and troubleshooting data is a game-changer for keeping the system running smoothly.
Cons
- Limited compatibility with certain older models may require additional research before purchase.
- Installation requires basic electrical knowledge, which could be a barrier for some users.
Unlike the Rinnai tankless water heater controller, the Noritz RC-7651M does not suffer from frequent connectivity issues, providing a more stable user experience. Overall, the Noritz RC-7651M stands out for its durability and value, making it a solid choice for anyone looking to optimize their tankless heating system.
To buy this product, click here.
Faq about Rinnai Tankless Water Heater Controller:
1: What is a Rinnai tankless water heater controller?
A Rinnai tankless water heater controller is a device that allows users to manage and monitor the operation of their Rinnai tankless water heater, offering features like temperature control and scheduling.
2: How do I install a Rinnai tankless water heater controller?
Installation typically involves connecting the controller to the heater using the provided wiring and following the user manual for specific instructions and safety guidelines.
3: Can I control my Rinnai tankless water heater remotely?
Yes, some Rinnai controllers offer remote control capabilities through a smartphone app, allowing users to adjust settings from anywhere.
4: What features does the Rinnai tankless water heater controller provide?
Features include temperature settings, usage tracking, error notifications, and the ability to set schedules for hot water availability.
5: Is a Rinnai tankless water heater controller compatible with all models?
Not all controllers are compatible with every Rinnai model. Check the specifications to ensure compatibility with your specific unit.
Conclusion
The Rinnai WiFi Control Module exemplifies cutting-edge technology, enabling seamless remote management of tankless water heaters, thus enhancing user convenience and efficiency. Its integration into smart home systems signifies a leap towards modern energy solutions.
Conversely, the Supplying Demand Wired Remote Control offers a practical, user-friendly alternative, ensuring reliable temperature regulation and straightforward operation for traditional water heating needs. Together, these products represent significant advancements in water heating technology, catering to diverse consumer preferences.




