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Internet # 329775266

Model # RWM200

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  • Covered under Rinnai's one-year limited parts warranty
  • Wi-Fi compatible
  • Certified Rinnai Part
  • View More Details

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Product Details

About This Product

More homeowners and business owners choose Rinnai than any other tankless water heater brand. They choose us for our 100-year commitment to quality, for our industry-leading warranties, and because we're the first major tankless brand assembled in the U. S. A. Over our 100-year history, we've proven our commitment to the quality, safety, and support behind everything we do. We make it easy to pick the right tankless water heater to support a more satisfying lifestyle for you and your family.

Highlights

  • Professional installation required call 84-go-Rinnai for assistance
  • Connect anywhere to your Rinnai tankless water heater using local wifi and Rinnai central app
  • Activate recirculation schedule
  • Adjust water temperature
  • Check real-time status
  • Receive maintenance alerts
  • Activate vacation mode for energy and money savings
  • Homeowners can experience the ultimate in accessibility, convenience, and control
  • For use with Rinnai central app for iPhone and android
  • For commercial and residential applications
  • Return Policy

Product Information

Internet # 329775266

Model # RWM200

Specifications

Dimensions: H 3.77 in, W 2.75 in, D 1.1 in

Dimensions

Product Depth (in.)

1.1 in

Product Height (in.)

3.77 in

Product Width (in.)

2.75 in

Details

Finish Family

Black

Material

Plastic

Pack Size

1

Product Type

Wi-Fi Module

Returnable

90-Day

Warranty / Certifications

Manufacturer Warranty

1-Year Warranty

Questions & Answers

I want to add the wireless WiFi capability to my recently installed RX199i unit, but what else would I need to have one, two or 3 often used outlets, (2 sinks and shower) via a common manifold, to have instant hot water or at least scheduled hot water.
ByOct 30, 2026
1 Answer | 
Answer This Question

Hello Edwardvan00, The RWM200 Wireless Module allows you to connect your compatible Rinnai water heater to the Rinnai Central app for additional control and convenience. The RX199i does not include a built-in recirculation pump, so additional equipment is required to enable hot water recirculation. Options may include an external recirculation pump or Rinnai's internal recirculation conversion kit (RX2RXPCK). Depending on your home's plumbing configuration, a thermal crossover valve may also be necessary if a dedicated recirculation return line is not present. Once a compatible recirculation system is installed, the RWM200 can provide scheduling capabilities to help reduce the wait for hot water at your fixtures. We recommend consulting a licensed installation professional to evaluate your plumbing configuration and determine the appropriate equipment for your desired recirculation setup.

By|Oct 30, 2026


    This is just an accessory to plug into my water heater to use Wi-Fi capabilities, correct?!
    ByOct 1, 2026
    1 Answer | 
    Answer This Question

    Hello Jessie, Yes, the Wi-Fi module allows you to connect to your water heater through the Rinnai Central™ app for greater control and convenience. Depending on your water heater's available features, you can remotely adjust the temperature, manage recirculation schedules, activate vacation mode, and access other settings.

    By|Oct 1, 2026


      Will this Renée water heater accessory allow to water heaters access to the Internet or do I need two units one for each water heater?
      ByAug 30, 2026
      1 Answer | 
      Answer This Question

      Hello Dryguy, No, the RWM200 Wireless Module can only be paired with one Rinnai tankless water heater. If you have multiple water heaters that you would like to connect using the RWM200, each water heater would require its own compatible wireless module.

      By|Aug 31, 2026


        Does this work with 199en model tankless water heater?
        ByJul 10, 2026
        1 Answer | 
        Answer This Question

        Hello Jp00, The RWM200 Wireless Module is compatible with select Rinnai tankless water heater series, including RU, CU, RSC, RX, RXP, CX, and CXP models.

        By|Jul 13, 2026


          Viewing 1-4 of 4

          Customer Reviews

          3.7 out of 5

          • 3.7 out of 7 reviews
          • 0% recommend this product
          Filter by:
          Showing 1-7 of 7 reviews
          Works great, but the included instructions are worthless. I had to find a YouTube video to show me where the wire connected.
          by
          • Verified Purchase
          I replaced two older Rinnai RWM101 Control-R modules with two new RWM200 modules on my RUR199eN water heaters. Unfortunately, the new RWM200s have not worked as expected. Both modules were installed, updated, and connected to a strong 2.4 GHz Wi-Fi network, but they repeatedly connect and disconnect instead of maintaining a reliable Wi-Fi/cloud connection. That defeats the main purpose of buying a connected control module. The customer support experience has also been poor. I have two new RWM200 modules that are still not providing reliable connectivity, and getting help from Rinnai has been frustrating to say the least
          by
          Response from Rinnai Product ExpertOct 1, 2026
          Hello Christopher,
          We're sorry to hear about the connectivity issues you've experienced with both of your RWM200 Wireless Modules and the frustration you've encountered while trying to get assistance. We understand how disappointing it is to upgrade your equipment and not receive the reliable connectivity you expected.

          We'd like the opportunity to review your situation further. Please contact Rinnai Customer Care through our online chat or email and provide your existing case number, if available, so our team can review your support history and determine the appropriate next steps. RinnaiAmerica
          • Verified Purchase
          This unit replaced my current Noritz n132 which was in service for over 25years. Flow rate is not as high on Rinnai but it should be enough since most of the faucets have been replaced with low flow. There are some things I miss like being able to easily adjust temps up to 140deg with a click of a button. Google Home support has been discontinued by Rinnai and was told they are not planning to add it back. This is a bummer, I bought network add-on module for this specific reason. Positives: easier to install due to the light weight, it is quieter and didn't require expensive stainless exhaust. Hopefully it lasts at least 25 years like Noritz did...
          by
          Works well. Easy to use.
          by
          • Verified Purchase
          Water heater
          This gives me control of.my new water heater
          by
          • Verified Purchase
          This product made any smart feature of the water heater disabled. The recirculating mode was unable to be activated permanently. I ended up returning it because the functions of the water heater are more important than seeing that the water heater is “on” on the app. The app is also archaic and doesn’t work well.
          by
          Response from Rinnai Product ExpertAug 3, 2026
          Hello Jonathan,
          We're sorry to hear about your experience and appreciate you taking the time to share your feedback. We understand how frustrating it is when a product does not perform as expected, particularly when it affects features that are important to you. We'd like the opportunity to review what occurred and determine whether there was a configuration or compatibility issue. If you still have the unit or have an existing case number, please contact our support team via chat or email so we can review the details and assist further. RinnaiAmerica
          • Verified Purchase
          This customer chose to rate the product and not provide text.
          by
          • Verified Purchase
          Showing 1-7 of 7 reviews