# Rinnai Control-r 2.0™ — Manage your hot water remotely

> Remote management and monitoring for Rinnai tankless water heaters. (iPhone/iPad app by Rinnai America Corp.)

- Source: https://appshunter.io/ios/app/rinnai-control-r-20/id1180734911 (this page in markdown: same URL + `.md`)
- Developer: [Rinnai America Corp](https://appshunter.io/developer/1045235922)
- Category: Lifestyle
- Price: Free
- Rating: 1.40/5 from 898 App Store ratings · 164 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.6 · 22 MB
- Languages: American English
- Released: 2020-12-17
- Data updated: 2026-08-24
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/rinnai-control-r-20/id1180734911/reviews.md

## What is Rinnai Control?

Get customizable control and convenience for your Rinnai tankless water heater with Control-r™. Plus, diagnostic tools and remote monitoring from local Rinnai experts provide rapid service and peace of mind.


[FEATURES]
-Manage: Adjust the temperature for your water heating system with one tap or voice command.
-Schedule: Ensure hot water is ready when it's needed with customizable daily schedules. Vacation mode ensures money and energy aren't wasted on heating water that won't be used. 
-Monitor: Reduce the likelihood of system emergencies with automatic maintenance and error alerts and real-time troubleshooting guides. Enable a certified Rinnai PRO to remotely monitor and manage system performance and provide faster service. 
-Recirculate: Quickly activate recirculation with the touch of a button (if applicable) for faster hot water.
-Register: Easily register your device through the app to take advantage of the extended labor plan. 


[COMPATIBLE PRODUCTS]
Rinnai Residential and Commercial Tankless Water Heaters (2006 and newer) with the Control-r Wireless Module. Some exceptions apply. See User Manual for details.

## Key features

- Adjust water temperature
- Create daily schedules
- Vacation mode for energy saving
- Receive maintenance and error alerts
- Remote system monitoring by experts
- Activate hot water recirculation

## What do users think of Rinnai Control?

Overall sentiment: negative

**Pros**

- 💻 Works as intended
- ⚙️ Basics work well
- 🔍 Slowly improving

**Cons**

- 🐛 Crashes frequently
- 🔌 Disconnects often
- 🤯 Buggy and unreliable
- 🤖 Poor user experience
- 🔍 Outdated and unsupported
- 🤔 Lacks key features

**Commonly reported bugs**

- App crashes during setup
- Schedules and timers not working
- Temperature controls not functioning properly
- Connectivity issues with WiFi module

**Most requested features**

- Improve app stability and reliability
- Add support for modern home automation
- Enhance user interface and usability
- Provide better customer support

## Recent user reviews (10 of 164)

All indexed reviews: https://appshunter.io/ios/app/rinnai-control-r-20/id1180734911/reviews.md

### 1/5 — Are there any new updates??

*2026-08-15, version 2.5.7*

My app keeps closing mid-connection, before I can reconnect my tankless hot water to the app for on demand hot water. This app has been a PIA from the beginning, but this is now ridiculous!

### 1/5 — Does not work

*2026-06-21, version 2.5.7*

When I try to register, the app would not let me select the state (option disabled)

### 1/5 — Not reliable

*2026-04-24, version 2.5.7*

I’ve had this module for about five years now and no matter what the upgrade is, it still does not adjust the temperature of my hot water. The display says my water temperature changes, but as soon as I go back into the app, it is back to its original setting and won’t save. Also, it seems to disconnect randomly from my Wi-Fi and when I go to reconnect, it takes forever to get it to work. I’ve reset my Wi-Fi and reset the module, but still doesn’t work consistently.

### 2/5 — You idiots you broke it again 02/28/26 (back working now)

*2026-03-04, version 2.5.7*

App broke and it does not recognize anything. It is asking me to repair again

Fixed on Monday 3-2-2026

### 1/5 — Works for needs but have request

*2026-03-02, version 2.5.7*

Able to run recirculating pump as needed at home or remotely before getting home.

Wish I did not have to re-enter username and password each time application revised.  Other apps do not require.

Latest version makes it impossible to login to the heater with my phone.  Instructions coming from app do not work.  Please fix.

### 1/5 — Unable to access app

*2026-03-01, version 2.5.7*

Unable to access app after providing user information. Trying to install RWM200 but cannot access app to connect wireless module. I’ve tried both Rinnai Central and Rinnai Control-r 2.0 and neither work.

### 1/5 — Run far away

*2026-03-01, version 2.5.7*

App updates come on the weekend that knock out your system. Customer service is closed until Monday so no hot water until customer service comes back. This happened more than once. Their software is absolutely useless. If I could go back to a tank, I would do it in a heartbeat.

### 1/5 — Overnight lost my device setting

*2026-03-01, version 2.5.7*

I had a working setup that I rely on and now the only heater device I have seems to have disappeared, trying to setup the device again just spins, so I’m at a loss now for what to do or how to get my device set up again. I connect to the Rinnai WiFi network to try and re pair but the app cannot find the device. Great going from a working system to now completely broken

### 1/5 — App is broken

*2026-03-01, version 2.5.7*

App is completely broken

### 1/5 — You idiots you broke it again 02/28/26

*2026-03-01, version 2.5.7*

App broke and it does not recognize anything. It is asking me to repair again

## Frequently asked questions about Rinnai Control

### What does the Rinnai Control-r 2.0 app do?

This app allows you to remotely manage your Rinnai tankless water heater. You can adjust the water temperature, set custom daily schedules for hot water availability, and activate recirculation for faster hot water. It also provides diagnostic tools and alerts for maintenance and errors.

### What are the key features of the app?

Key features include the ability to manage water temperature with a tap or voice command, schedule hot water usage with customizable daily plans and a vacation mode, monitor system performance with alerts and troubleshooting guides, and quickly activate hot water recirculation. You can also register your device for an extended labor plan.

### Is this app free to use?

Yes, the app is free to download and use. There are no in-app purchases or ads mentioned. The primary requirement is a compatible Rinnai tankless water heater with the Control-r Wireless Module.

### What Rinnai water heaters are compatible with this app?

The app is compatible with Rinnai Residential and Commercial Tankless Water Heaters manufactured in 2006 and newer, provided they are equipped with the Control-r Wireless Module. Some exceptions may apply, so it's recommended to consult your User Manual for specific details.

### How can this app help with water heater maintenance?

The app helps with maintenance by providing automatic alerts for system errors and required maintenance. It also offers real-time troubleshooting guides. Furthermore, you can enable a certified Rinnai PRO to remotely monitor your system's performance, which can lead to faster service and proactive issue resolution.

## Version history (last 5 releases)

### 2.5.7 — 2022-03-16

Improvements for stability and usability:
• Better Performance of the Temperature Setting Wheel
• Bug Fixes

### 2.5.6 — 2021-10-19

Improvements for stability and usability:
• Improved stability for retrieving status of devices.
• Corrections in text size for certain screen sizes.

### 2.5.5 — 2021-09-28

Improvements for stability and usability:

Improved stability for User Account Creation
Fixed Canadian Provinces options for Tankless Water Heater Registration
Improved stability for control-r device upgrade

### 2.5.4 — 2021-08-10

Fix for schedule creation
Minor design updates

### 2.5.3 — 2021-07-13

Fix for Tankless Power control
Fix for Vacation Mode controls
Fix for completing registration after manually entering the serial

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## More apps by Rinnai America Corp

- [Rinnai Pro](https://appshunter.io/ios/app/rinnai-pro/id1461284046)
- [Rinnai Pro 2.0](https://appshunter.io/ios/app/rinnai-pro-20/id1536483096)
- [Rinnai Central](https://appshunter.io/ios/app/rinnai-central/id6444321202)

All apps by Rinnai America Corp: https://appshunter.io/developer/1045235922

## Related topics

[rinnai central](https://appshunter.io/ios/topics/rinnai-central) · [rinnai water heater](https://appshunter.io/ios/topics/rinnai-water-heater) · [rinnai](https://appshunter.io/ios/topics/rinnai) · [water heater](https://appshunter.io/ios/topics/water-heater) · [tpts](https://appshunter.io/ios/topics/tpts) · [eccotemp](https://appshunter.io/ios/topics/eccotemp) · [bock water heaters](https://appshunter.io/ios/topics/bock-water-heaters)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*