Rinnai Water Heaters

RE199iN is the perfect combination of high efficiency, comfort, and value in a natural gas non-condensing tankless water heater from Rinnai. Ideal for small to medium homes or remodels. Only the size of a small suitcase is easy to install, reliable, and perfect for indoor locations; Rinnai products provide peace of mind with warranties that surpass the competition.

I love how fast the water heats. With a large family, there’s no more waiting for the hot water to catch up. I replaced a 25 year old Rinnai with a newer model 6 months ago. I wouldn’t go any other way. They are built to last!. Rinnaialltheway4189. Sat Jun 13 2026

Welcome to ultimate efficiency. With technology that operates only when hot water is needed, super-efficient heating coils, no pilot light, and no storage tank to heat and reheat water, you save on energy and utility costs. Rinnai tankless water heaters use up to 40% less energy than a traditional tank water heater. Plus, with premium technology, increased energy efficiency, an improved Home Energy Rating System (HERS) Index Score, and optimized LEED eligibility, our tankless solutions can increase your home's value. You can even qualify for energy efficiency rebates and tax credits. It's a smart investment for now and the future.

It is quiet when running and works as expected. It has been quietly heating my water for 8 months and I'm glad I chose this one.. Guller519476. Tue Apr 28 2026

Exterior CTWH 160K Btu 7.5 gpm

Best tankless water heater ever i love it i really recomended. Arturo. Sat Feb 21 2026

Enjoy unlimited hot water with Rinnai's Sensei Super High-Efficiency Plus (0.98 UEF) condensing tankless water heater. Only the size of a small suitcase, this compact model can be easily converted to use either Natural Gas or Propane with no additional purchase necessary. Perfect for any location, this model allows for either indoor installation or outdoor installation with the purchase of the Versa Vent adaptor (sold separately). The Smart Connect™ feature allows pros to connect their smartphone or tablet to the water heater via Bluetooth® to set up and register the product using the Rinnai Central App for you to receive an additional four years of labor coverage on your warranty.

Good. Hovhannes. US. Mon Aug 11 2025

The CX199iN is the next generation in commercial tankless water heating. Offering industry-leading thermal efficiency, this model was designed for the most intense applications - from restaurants and hotels to multifamily residenses. The SENSEI CX Series provides unlimited hot water leveraging a new, more compact combustion design that allow for easier installation and enhanced operational performance and serviceability.

Fast, reliable FedEx shipping! Product as advertised.. Wade. Wed Nov 27 2024

The CXP160iN is the next generation in commercial tankless water heating. Designed for the most intense applications - from restaurants and hotels to multifamily residenses, the SENSEI CX Series provides unlimited hot water leveraging a new, more compact combustion design that allow for easier installation and enhanced operational performance and serviceability. This model includes a built in recirculation pump that offers industry-leading thermal efficiency - providing faster hot water at the faucet when you need it.

The CX160iN is the next generation in commercial tankless water heating. Offering industry-leading thermal efficiency, this model was designed for the most intense applications - from restaurants and hotels to multifamily residenses. The SENSEI CX Series provides unlimited hot water leveraging a new, more compact combustion design that allow for easier installation and enhanced operational performance and serviceability.

The CXP199iN is the next generation in commercial tankless water heating. Designed for the most intense applications, from restaurants and hotels to multi-family residences, the SENSEI CX Series provides unlimited hot water, leveraging a new, more compact combustion design that allows for easier installation and enhanced operational performance and serviceability. This model includes a built-in recirculation pump that offers industry-leading thermal efficiency, providing faster hot water at the faucet when you need it.

Great Transaction. John. Sat Nov 15 2025

Having hot water whenever your family needs it shouldn't be a luxury. Put worrying about hot water out of your mind, because now your family can enjoy an endless supply of hot water. And you can enjoy it anywhere in your home. 2 showers running at once are not a problem. Laundry and dishes at the same time, Great idea. Thanks to our innovative technology, your family's comfort and convenience come first.

High quality, reliable.. Launa. Van Nuys, CA. Sat Dec 14 2024

Enjoy unlimited hot water with Rinnai's SENSEI Super High Efficiency Plus (0.97 UEF) condensing tankless water heater. Only the size of a small suitcase, this compact model can be easily converted to use either Natural Gas or Propane with no additional purchase necessary. Perfect for any location, this model allows for either indoor installation or outdoor installation with purchase of the Versa Vent adaptor (sold seperately). The Smart Connect(TM) feature allows pros to connect their smartphone or tablet to the water heater via Bluetooth(R) to set up

We are so glad we got this heater. The size is just right for our home, and the aesthetic is quite appealing (for a water heater)!. Luis. Sat Dec 28 2024

Enjoy unlimited hot water with Rinnai's SENSEI Super High Efficiency Plus (0.98 UEF) condensing tankless water heater. Only the size of a small suitcase, this compact model can be easily converted to use either Natural Gas or Propane with no additional purchase necessary. Perfect for any location, this model allows for either indoor installation or outdoor installation with purchase of the Versa Vent adaptor (sold seperately). The Smart Connect(TM) feature allows pros to connect their smartphone or tablet to the water heater via Bluetooth(R) to set up

The exhaust fan is somewhat noisy. The heater is in the basement and can be heard from the main floor when house is quiet.. Paulg9582. Tue Jun 23 2026

Enjoy an endless supply of hot water with Rinnai's SENSEI Super High-Efficiency Plus (97% UEF) condensing tankless water heater. Only the size of a small suitcase, this compact model can be easily converted to use either Natural Gas or Propane with no additional purchase necessary. Perfect for any location, this model allows for either indoor installation or outdoor installation with the purchase of the Versa Vent adaptor (sold separately). This model also comes with a built-in recirculation pump that learns your hot water usage patterns to more effectively provide instant hot water when needed.

Overall having an instant hot water system is nice. My water pressure feels like I’ve lost some pressure and the intermittent cold water ate my only complaints.. Tsanjose1440. Fri Jun 19 2026

Enjoy unlimited hot water with Rinnai's SENSEI Super High Efficiency Plus (0.98 UEF) condensing tankless water heater. Only the size of a small suitcase, this compact model can be easily converted to use either Natural Gas or Propane with no additional purchase necessary. Perfect for any location, this model allows for either indoor installation or outdoor installation with purchase of the Versa Vent adaptor (sold separately). The Smart Connect(TM) feature allows pros to connect their smartphone or tablet to the water heater via Bluetooth(R) to set up and register the product using the Rinnai Central App for you to receive an additional four years of labor coverage on your warranty.

Excellent product. We have a 4 bathroom house and all use hot water for dishwasher and laundry. The water heater is great, quick to deliver hot water and is working great. Really like the product. The app is not easy to connect - have up after a bit but will try later. Nonetheless, that doesn’t take away from the fact that it is a really Good product.. Zakawat. Kitchener, ON. Wed Feb 12 2025

Enjoy an endless hot water supply with Rinnai's Sensei Super High-Efficiency Plus (98% UEF) condensing tankless water heater. Only the size of a small suitcase, this compact model can be easily converted to Natural Gas or Propane with no additional purchase necessary. Perfect for any location, this model allows for indoor or outdoor installation with the purchase of the Versa Vent adaptor (sold separately). This model also has a built-in recirculation pump that learns your hot water usage patterns to more effectively provide instant hot water when needed.

Compact unit with very high efficiency. Supplies plenty of water with showers, washing machine, dishwasher all running at once. Worth the switch from a regular tanked water heater.. Sharon. CA. Tue Nov 19 2024

Passion for constant improvement drives us to create incredibly innovative water heating and home heating gas appliances for both residential and commercial applications. As a result, products have continued to lead the industry.

Works great!. Todd. Algonquin, IL. Mon Mar 09 2020

The I- Series i150SN model features Rinnai’s exclusive self-cleaning stainless-steel heat exchanger coupled with a secondary flat plate heat exchanger. This heat-only model can deliver whole-house heating to enhance your comfort. The i150SN provides an input rating of 150K Btu. Fueled with either Natural Gas or Propane this Rinnai condensing gas boiler has obtained one of the highest AFUEs (Annual Fuel Utilization Efficiency) in the industry. Plus, the compact wall-mounted design saves space over traditional boilers.

Passion for constant improvement drives us to create incredibly innovative water heating and home heating gas appliances for both residential and commercial applications. As a result, products have continued to lead the industry.

The Rinnai tankless H2O heater works as advertised-- water gets heated quickly, and with the wi-fi controller installed, I can use my smartphone or tablet to control aspects of it, i.e. enabling hot water on demand and setting the temperature of the water. However it is the APP that needs some work. There is *minimal* information on the app's features and how to use it. It's a great idea that just needs a little work to make it truly useful.. Newlytankless1659. Sat Sep 14 2019