Rinnai SENSEI CU199 Tankless Water Heaters

Only super-high-efficiency Rinnai® SENSEI™ Tankless water heaters combine the most convenient, innovative tankless water heater technology with the unsurpassed quality and reliabilaity of Rinnai. All SENSEI™ models feature recirculation for faster hot water and Wi-Fi compatibility, so they can be controlled and monitored remotely from a smart device.

Innovative Rinnai SENSEI™ tankless water heaters offer clear advantages for homeowners and trade professionals. And all key components are manufactured by Rinnai, so you’re working with the ultimate quality.

Homeowner Conveniences

  • Faster hot water with recirculation for less waiting and less waste
  • Start recirculation and more with smartphone or Amazon Alexa™
  • Energy efficiency and significant savings on home energy bills
  • More usable space thanks to suitcase-sized, wall-mounted units

Most Flexible Venting in the Industry

  • 14 possible vent configurations
  • Up to 65′ vent runs with 2″ PVC options
  • 9 compatible vent manufacturers*
  • Only a single wall penetration required
  • Simple positive-fit components for secure connection
  • Joint seals expand/contract with weather to prevent damage
  • Assembly and adjustment are easy
  • *Includes PVC

Easy Installation and Serviceability

  • Adjustable mounting plate with lip for easy hanging almost anywhere
  • Quick and easy gas conversion in just 3 steps with inexpensive kit
  • Rotating isolation valves to accommodate more applications
  • Easy parameter adjustments with simple, accessible control panel
  • Simple Wi-Fi remote monitoring with detailed system information
  • Convenient access to all key components for fast, easy service
Rinnai SENSEI CU199 Tankless Water Heaters was last modified: August 17th, 2020 by HVAC Expert

CU199iN

Installation Type Indoor Only
Recirculation Capable Yes
Energy Factor
Domestic Hot Water Flow Rate (Maximum) 11 GPM GPM
42 l/min
1/2″ Gas Line Compatible
Wi-Fi Capable Yes
SCAQMD Approved Yes
Warranty – Commercial Heat Exchanger (months) 96
Warranty – Commercial Labor (months) 12
Warranty – Commercial Parts (months) 12
Warranty – Residential Heat Exchanger w/ Space Heating (months) 180
Warranty – Residential Heat Exchanger (months) 180
Warranty – Residential Labor (months) 12
Warranty – Residential Parts (months) 12

CU199iP

Installation Type Indoor Only
Recirculation Capable Yes
Energy Factor
Domestic Hot Water Flow Rate (Maximum) 11 GPM GPM
42 l/min
1/2″ Gas Line Compatible
Wi-Fi Capable Yes
SCAQMD Approved Yes
Warranty – Commercial Heat Exchanger (months) 96
Warranty – Commercial Labor (months) 12
Warranty – Commercial Parts (months) 12
Warranty – Residential Heat Exchanger w/ Space Heating (months) 180
Warranty – Residential Heat Exchanger (months) 180
Warranty – Residential Labor (months) 12
Warranty – Residential Parts (months) 12

CU199eN

Installation Type Outdoor Only
Recirculation Capable Yes
Energy Factor
Domestic Hot Water Flow Rate (Maximum) 11 GPM GPM
42 l/min
1/2″ Gas Line Compatible
Wi-Fi Capable Yes
SCAQMD Approved Yes
Warranty – Commercial Heat Exchanger (months) 96
Warranty – Commercial Labor (months) 12
Warranty – Commercial Parts (months) 12
Warranty – Residential Heat Exchanger w/ Space Heating (months) 180
Warranty – Residential Heat Exchanger (months) 180
Warranty – Residential Labor (months) 12
Warranty – Residential Parts (months) 12

CU199eP

Installation Type Outdoor Only
Recirculation Capable Yes
Energy Factor
Domestic Hot Water Flow Rate (Maximum) 11 GPM GPM
42 l/min
1/2″ Gas Line Compatible
Wi-Fi Capable Yes
SCAQMD Approved Yes
Warranty – Commercial Heat Exchanger (months) 96
Warranty – Commercial Labor (months) 12
Warranty – Commercial Parts (months) 12
Warranty – Residential Heat Exchanger w/ Space Heating (months) 180
Warranty – Residential Heat Exchanger (months) 180
Warranty – Residential Labor (months) 12
Warranty – Residential Parts (months) 12

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People like you shared their purchase and installation experience!

Michelle ZornMichelle Zorn

I had the most fabulous experience with Cozy Comfort Plus! Brian was very responsive for my first outreach all the way through to the completion of my beautiful fireplace! I live in a condo and as such, things are not straightforward when it comes to having work completed. There were a few extra hoops to jump through but Brian and his team were very diligent in ensuring that all the fittings were correct. I was so happy with my experience that I had them replace my furnace and add a smart home thermometer as well! I would highly recommend Brian and his team for their knowledge, skill and excellent customer service!

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Jason HicksJason Hicks

Raymond and Ali were professional, and a pleasure to meet. They arrived on time, did the work (hot water heater removal and installation) efficiently and expertly, and did a great job of cleaning up afterward. This has been my consistent experience dealing with Cozy Comfort Plus over the years. Brian, Liz, Jay... all the team members I've interfaced with are top-notch. Highly recommended!

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Kenny LeungKenny Leung

Brian once again helped me with my project. Before I have installed a gas fireplace and this time I have installed an LG heat pump with 3 indoor heads. We had an amazing experience with Brian and his team for both projects from quote to installation. Brian is experienced, patient, reliable, and provides great friendly service. He’s also tells very interesting life stories which makes enhances the whole experience. All my future business is going to his company. Thanks again Brian!

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