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!

Greg LindsayGreg Lindsay

My furnace broke mid February and from the first call Cozy Comfort Plus exceeded my expectations and it was the best customer service experience I've had in a very long time. They had someone here within two hours who very knowledgeable and gave me several options. I ended up deciding to replace my furnace and they had it done the next day. From my first contact on the phone, to the technician to the installation staff they were all professional, responsive and truly a pleasure to work with. In a little over 24 hours the heat was back on and at a very fair price.

I cannot recommend them highly enough as it's a stressful time when your furnace goes mid February. They even submitted the rebates before I had a chance to call them the next day!! All I can say is WOW.

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Lynn TorresLynn Torres

We had a great experience with the technicians at Cosy Comfort Plus - we had some Red Tags that needed sorting and they were able to deal with the issue promptly and professionally. Would certainly recommend.

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Santa CruzSanta Cruz

I had a great experience with Brian from Cozy Comfort from initial phone consultation, followed by in home visit on the same night to ensure right furnace was selected as my old one had quit. Great price was competitive and install performed 1 day later and everything works mint! Will definitely use these guys again.

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