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Rinnai 3" Control-R Wi-Fi Module for Tankless Water Heaters

Rinnai 3" Control-R Wi-Fi Module for Tankless Water Heaters

Regular price $197.00
Regular price Sale price $197.00
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With Rinnai’s Control-R™ Wi-Fi Module, new and existing Rinnai Residential and Commercial Tankless Water Heaters (2006 and newer) can be remotely monitored and controlled via smart devices. Rinnai now has the capability to provide a new option for management, control, and maintenance of Rinnai Tankless Water Heaters.

The module attaches to the water heater and with a two-wire interface quickly connects to your WiFi network. If your water heater is located in an area of the home where your WiFi signal is weak, the module can be wired up to 300 feet away from the water heater. The module is for indoor installation only but can be used with outdoor installed water heaters. Once connected, simply download the Rinnai app and you can control your tankless water heater through your smartphone or tablet.

Control and convenience at your fingertips. With the app, you can register your product, adjust the temperature, as well as activate the recirculation function (if your system recirculates). Additionally, Remote Diagnostics and Monitoring Alerts provide detailed system information such as sending automatic maintenance alerts. If your system is set up for recirculation, the Control-R module can be paired with motion sensors or push buttons used to recirculate.

The addition of these accessories allows for hot water faster. The Control-R mobile app with Smart Home technology integrates more than 20 voice commands allowing on-demand voice activation of the recirculation system and temperature control. Pairing with Amazon Alexa, Google Home, and Samsung SmartThings is possible only with Rinnai Tankless Water Heaters. The Control-R will only currently work with a 2.4 GHz dual-band router. The Control-R app includes built-in timers and schedules for multiple on/off periods throughout the day. Of course, it also offers vacation mode as well as the option to stop a scheduled recirculation event from starting. Additional features include the ability to see your water and fuel usage as well as set a service monitoring dealer.

Recirculation CapabilityIf your system has recirculation capability, you can activate recirculation through the use of the Control-R™ Wi-Fi Module, motion sensor, or push-button for faster hot water ( sold separately ).


  • Works with all Rinnai Tankless Water Heater models manufactured 2006 and newer (except RH180 Hybrid Tank-Tankless Water Heaters).
  • The Lime Condition (LC) notification will not appear in the Rinnai
  • App, when the Control-R™ Wi-Fi Module is paired with the following series of Rinnai Tankless Water Heaters, manufactured prior to 2009: VA, VB, KA, and V53e.
  • Attaches to side of water heater via magnetic enclosure (indoor models only) or mounts to an indoor wall with supplied mounting hardware.
  • Pairs with only one Rinnai Tankless Water Heater.
  • Included with purchase: Control-R™ Wi-Fi Module with 5 feet (1.5 m) of wire for water heater connection; wall mounting hardware (2 anchors and 2 screws); and “Rinnai Control-R™ Wi-Fi Module Installation Manual.”

Installation Requirements:

  • Choose a central location inside the home or business where the Wi-Fi signal is strong. If the Rinnai Tankless Water Heater is located where the Wi-Fi signal is weak (such as basements or a mechanical room), the module is designed so that wiring can run up to 300 feet (91 m) away from the water heater to ensure a strong Wi-Fi signal (18-22 gauge wire is required).
  • The module must be installed indoors.
  • Adequate space must surround the module for service and support needs.

Supported Devices:

  • Apple® devices (iPhone, iPad, etc.) running operating system 8.0 or higher.
  • Android® devices (phones, tablets, etc.) running operating system 4.4 or higher.
  • BlackBerry® devices are not supported.


  • 802.11N Wi-Fi Network up to 2.4 GHz.
  • Not compatible with MC-195T-US or MC-100V controllers.


Depth  1.18 in
Width   3.69 in 
Height  3.69 in
Color  Black
Product Type Wi-Fi Module
Material  Plastic
Installation Type
Wall Mounted


To connect with a Rinnai-trained installer, you can utilize the Rinnai Dealer Locator by visiting the link: Alternatively, you can directly reach out to Rinnai's dedicated customer support team via the Toll-Free Number: 1 (800) 621-9419.

Documents & Files

Installation Guide Download
Specification Manual Download

Options and Accessories

Control-R Wi-Fi Push Button

  • For Use with the RWM101 Control-R Wi-Fi Module
  • Mounted near the point of use, like a kitchen faucet or bathroom sink, and operates the recirculation system

Rinnai Control-R Wi-Fi Motion Sensor

  • The Control-R™ Motion Sensor works with the Control-R™ Module to operate the Rinnai Tankless Water Heater recirculation system.


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