Tankless On Demand

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 to manufacture in the U.S.A.

Never Run Out of Hot Water
With a Rinnai tankless water heater, you’ll never have to choose between taking a piping hot shower, doing a load of laundry, or running the dishwasher. Hot water is always available.

Better Value Than a Tank
Rinnai tankless water heaters last up to twice as long, have twice the warranty, and save energy as they only heat water when it is needed. Rebates are also often available.

Save Valuable Space
Small and mighty, the suitcase-sized wall units fit in tight, discreet spaces, freeing up more usable living area in your home. No more storing large quantities of water that could potentially leak on your floor. Also, parts are usually replaceable, rather than replacing the entire unit.

Technology to Improve Your Lifestyle
Select models have the Rinnai recirculation technology and are Wi-Fi ready, allowing you to set hot water schedules or have it on demand, giving you hot water in seconds, not minutes, saving you time and reducing water waste. They can also be integrated with your smart home technology for greater control.

Reliability You Can Count On
Every Rinnai tankless water heater is individually tested for quality before shipping. Unlike many competitors, Rinnai makes the vast majority of our key components, allowing for consistent control of quality. That’s why more consumers and businesses choose Rinnai over any other tankless brand.

Better Value Than a Tank
Rinnai tankless water heaters last up to twice as long as tanks and have twice the warranty length. Plus, they save energy by heating water only when it is needed. Rebates are also often available.

Technology to Improve Your Lifestyle
Rinnai Circ-Logic™ technology allows you to set recirculation patterns that coincide with your habits. You can ensure hot water is available when you need it, without the expense and inefficiency of circulating it during times of inactivity.

System Protection
Isolation valves provide an extra measure of protection, making it easier for PROs to service your tankless system.

Reliability You Can Count On
Every Rinnai tankless water heater is individually tested for quality before shipping. Unlike many competitors, Rinnai makes the majority of our key components, allowing for consistent control of quality. That’s why more consumers and businesses choose Rinnai over any other tankless brand.

Flexible Options
Enjoy the flexibility to choose the unit that works best for your home. Rinnai tankless water heaters are available with natural gas or propane fuel options and can be installed inside or outside.

Smart Home Voice Activation
Rinnai is on the leading edge of innovation, proven when we became the first water heater with Amazon Alexa integration. Use more than 20 voice commands for on-demand voice activation of the system.

No-Hassle Hot Water, When and Where You Need It
With a tankless water heater, your home’s cold water is heated only when you need it, and it stays hot until you’re done using it. This results in a limitless hot water supply and little to no wasted energy usage.

  1. Flame ignites and heats two heat exchangers
  2. Water preheats as it passes through the secondary heat exchanger
  3. Water continues to heat to desired temperature as it passes through stainless steel primary heat exchanger
  4. Water exits the unit and travels to the water fixture where it is needed
  5. Flame output adjusts as needed to maintain water temperature during use
  6. With usage complete, the flame turns off and water stops flowing

Technology & Features
Unlimited Hot Water – Because your water is continuously heated as needed, you’ll never have to choose between taking a hot shower, doing a load of laundry, or running the dishwasher.

Wi-Fi Capable – Wi-Fi technology allows certain water heaters to be monitored and controlled (scheduling, recirculation, and more) via smartphone or voice-controlled device.

Durability – Tankless water heaters are easier to repair than tanks, often eliminating the need to replace the unit. And many offer extended, comprehensive warranties.

Energy Efficiency – Rated by a Uniform Energy Factor (UEF), tankless water heaters are a highly efficient hot water appliance and ENERGY STAR® certified units offer additional energy saving benefits.

Convenience – Accessories like room motion sensors and push-button water demand are available to help make hot water instantly available when it’s needed.

No More Waiting for Hot Water

Waiting for hot water can be frustrating, costly, and wasteful. Recirculating technology eliminates the wait, so hot water is always at the ready. Our technology permits this even if your home does not have a dedicated return line.

Ensure You’ll Never Wait for Hot Water
Recirculation accessories enable your home to have hot water, faster, when you need it. Solutions include tankless water heaters with built-in pumps or units that can have a pump added. Homes with no dedicated return line can have a thermal bypass valve added to the cold water line for recirculation.

Recirculation solutions available in SE+ Series tankless water heaters. Affordable solutions available that do not require the addition of a dedicated return line. Recirculation can be controlled via app, smart home devices, push button, scheduled timers, or motion sensors.

Recirculation Benefits
Waiting for hot water can be frustrating, costly, and wasteful. Recirculating technology eliminates the wait, so hot water is always at the ready. Our technology permits this even if your home does not have a dedicated return line.

Recirculation with ThermaCirc360
If your home does not have a dedicated return line, Rinnai’s SE+ Series featuring ThermaCirc360 technology can offer faster hot water without adding an additional line. This technology allows for the simple installation of a thermal bypass valve at the fixture farthest away from the water heater. Once installed properly, the unit temporarily uses the cold water line for recirculation.

Accessories

control.r™ Wi-Fi Module – For Models that do not offer this feature.
The module easily attaches to a Rinnai tankless water heater by a two-wire interface, quickly connecting through the local Wi-Fi network

Wireless Push Button
Mounted near the point of use, like a kitchen faucet or bathroom sink, this push button activates the recirculation system.

Wireless Motion Sensor
Mounted near the point of use, the motion sensor operates the recirculation system by detecting full-body movement up to 30 feet away.

Wireless Temperature Sensor
The sensor turns off the recirculation and is available for purchase if required by local building codes.

Accessories – Control-r App

A Better Life Through Better Technology
As industry leaders in innovation, Rinnai allows you to monitor and manage your Rinnai tankless water heater with smart technology that works in the palm of your hand or at the sound of your voice. Rinnai’s proprietary control•r™ Wi-Fi Module for tankless water heaters connects to your home’s Wi-Fi so you can monitor alerts, manage schedules, easily register your unit, and more.

Control at Your Fingertips
Adjust the temperature for your water heating system with one tap or voice command. Quickly activate recirculation with the touch of a button (if applicable) for faster hot water.

Innovative Technology
The proprietary app and module allow you to have control of your hot water like never before. Our smart home integration allows you to control temperature and turn on recirculation (if applicable) for faster hot water with just a word to your Amazon Alexa, Google Home, or Samsung SmartThings device.

Alert Monitoring
Reduce the likelihood of system emergencies with automatic maintenance and error alerts and real-time troubleshooting guides. Enable a Rinnai PRO to remotely monitor and manage system performance and provide faster service.

Schedule Management
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.