Rinnai Central

Rinnai Central

by Rinnai America Corp

396 ratings
223 reviews
Free

Details

Released
June 8, 2023
Updated
July 8, 2026

Features

Rinnai Central screenshot #1 for iPhone
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About

This app connects Rinnai tankless water heater owners to their devices for temperature control and scheduling. Professional installers can use it to register appliances, perform service, access documentation, and order parts.

✓Adjust water temperature
✓Schedule hot water
✓Activate recirculation
✓Register appliances
✓Perform remote service
✓Access documentation
✓Order replacement parts
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What users say about Rinnai Central

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What's New in Rinnai Central

5.0.4

July 8, 2026

Bug fixes and stability improvements to help make Rinnai Central more reliable for both professionals and homeowners.

User reviews

Buy something else

When you pay thousands of dollars for an on-demand water heater you just want it to work when you need it. Neither the WiFi nor
The Bluetooth button recirc feature stays connected. As many others have stated, it constantly falls offline, making the recirculation feature (sending hot water to the far end of your house so you don’t need to run the tap for minutes) virtually useless.
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Useless app do not download

The title says it all, absolutely useless app, the only purpose behind it is data collection, they make you register only to find out that there’s no benefit from having the app and that your data was their only goal.

Functional but Inconsistent

Connects to WiFi and allows scheduling for recirculation, but WiFi connection status icon frequently switches between connected and disconnected, which makes the app seem unreliable.

Useless

Downloaded this app to control my newly installed RXP199i Hot Water tank as advertised on the unit. It’s telling me that I need a professional installers account to connect to the tank. Sure, I can register the tank through the app, but I could do that through a website too. Why can’t homeowners access their own device?
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Broke my unit, cost me $$$

Whatever they did recently to the Wifi module/app caused my water heater to go into a test cycle with no way of turning it off. Had to have a tech come out to reconnect the manual triggers.

Developer apps

User experience

🐞

Reported Bugs

3 issues

Control failed is still happening in latest version

Bug

Login screen freezes

Bug

Incompatible with older devices

Bug
✨

Requested Features

3 requests

Add device through Bluetooth missing

Feature

Dark mode option

Feature

Advanced analytics dashboard

Feature

FAQ

What does the Rinnai Central app do?

The Rinnai Central app serves two main purposes. For Rinnai Tankless Owners, it allows them to connect to their water heater to manage temperature, schedule hot water, activate recirculation, and view status. For PROs/Installers, it provides tools for registering appliances, performing service, accessing documentation, ordering parts, and finding rebates.

What features are available for Rinnai Tankless Owners?

Rinnai Tankless Owners can use the app to adjust their water heating system temperature, quickly activate recirculation if applicable, set customizable daily schedules for hot water, and put the system in vacation mode. They can also view real-time status and receive maintenance alerts.

What tools does the Rinnai Central app offer for professional installers?

Professional installers can use the app to set parameters and perform service on specific Rinnai tankless water heaters and boilers. They can remotely register products, set up customer Wi-Fi modules, access the latest documentation and online training, order parts from the Rinnai webstore, and use a troubleshooting guide and solution selector.

What Rinnai products are compatible with this app?

The app is compatible with Rinnai Residential and Commercial Tankless Water Heaters from 2006 models and newer, provided they have Rinnai’s Wireless Module installed, which is sold separately. Some exceptions may apply, and users should consult their User Manual for details.

Is the Rinnai Central app free to use?

Yes, the Rinnai Central app is available for free download and use. There are no in-app purchases or advertisements mentioned in the provided description.