Search  for anything...
Rinnai

Rinnai RU199iN Condensing Tankless Hot Water Heater, 11 GPM, Natural Gas, Indoor Installation

    • Based on 891 reviews
Condition: New
Checking for product changes
$1,947.00 Why this price?

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term with PayTomorrow
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

Availability: Only 2 left in stock, order soon!
Fulfilled by Amazon
Arrives Friday, Nov 22
Order within 6 hours and 33 minutes
Available payment plans shown during checkout

Style: Natural Gas, Indoor Installation


Size: 11 GPM


Features

  • Endless Hot Water: Our tankless hot water heaters offer unlimited whole-home hot water flow and come equipped with Circ-Logic for pairing with an external pump to reduce wait time for hot water via scheduled or on-demand recirculation
  • Energy and Space Efficient: The tankless design of this small hot water heater saves on space and conserves energy as it heats only when necessary
  • Optimal Water Pressure: With a hot water flow rate of up to 11 GPM, this tankless water heater provides a powerful, constant stream that can accommodate up to 7 appliances at once
  • Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to locate a qualified technician in your area to install your water heater; We do not recommend installing a water heater without a technician
  • Guaranteed to Last: 15-, 5-, and 1-year residential for heat exchanger, labor, and parts, respectively; Wifi monitoring available with Controlr module (not included)
  • ENERGY STAR qualified with Uniform Energy Factor of 0.105

Description

The Rinnai Super High-Efficiency Plus Tankless Water Heater is the ultimate solution for energy-conscious homeowners seeking a smart, compact, and efficient water heating system. This tankless hot water heater offers advanced features and a durable design that provides an endless supply of hot water, making it perfect for households of all sizes. Enjoy unlimited hot water flow throughout your home, as well as a compact and space-saving design that conserves energy by heating water only when necessary, providing optimal energy efficiency. With a high-performance 11 GPM hot water flow rate, this tankless gas water heater delivers powerful and constant water pressure for a satisfying and uninterrupted stream. Say goodbye to low water pressure and enjoy a powerful hot water experience. Equipped with Circ-Logic technology, this on demand water heater enables recirculation patterns that coincide with your typical habits. Pair it with an external pump to reduce wait time for hot water via scheduled or on-demand recirculation. Rest assured with our Super High-Efficiency Plus Tankless Water Heater, backed by a guaranteed warranty. Enjoy a 15-year residential warranty for the heat exchanger, 5-year warranty for labor, and 1-year warranty for parts. For added convenience, Wi-Fi monitoring is available with the Controlr module (not included), allowing you to monitor and control your water heater from anywhere. Rinnai's super high- efficiency plus condensing tankless water heater models, featuring SENSEI technology, offer the most advanced technology in water heating. Unlike traditional tank heaters that accumulate rusty sediments, our compact water heater elements have a longer lifespan as water runs continuously through the pipes.

Brand: Rinnai


Product Dimensions: 9"W x 9"H


Special Feature: High-efficiency, ENERGY STAR certified, Circ-Logic technology for recirculation


Color: Silver/Grey


Wattage: 57942.2 watts


Global Trade Identification Number: 32


Manufacturer: Rinnai


UPC: 766156009532


Brand: Rinnai


Model Number: RU199iN


Item Dimensions W x H: 9"W x 9"H


Item Weight: 74.1 Pounds


Capacity: 11 Gallons


Material Type: Metal


Style Name: Natural Gas, Indoor Installation


Color: Silver/Grey


Standby Power Shutoff: Low


Maximum Pressure: 6E+1 Pound per Square Inch


Mounting Type: Wall


Is Electric: No


Voltage: 120 Volts


Flow Rate: 11 Gallons Per Minute


Power Source: Gas Powered


Additional Features: High-efficiency, ENERGY STAR certified, Circ-Logic technology for recirculation


Wattage: 57942.2 watts


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Nov 22

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • High-Performance & Hassle-free - Rinnai RU199iN Delivers!
Style: Natural Gas, Indoor Installation Size: 11 GPM
Review Image by Review Monster Review Monster
October 2023 - The takeaway is that anyone who complains about these not working well did not install it correctly (and won't admit it). I am shocked at how well this thing works. I am still amazed how quiet it is. No further occurrences of errors. Works fine with furnace running even supplied through a 1/2in tee from a 1 in main supply to the basement. Sep 2023 Brief update: I had one occurrence of error 12 - flame out. But it hasn't happened again. I hope it was a fluke caused by our gas supply and nothing else. If not, I'll investigate and update my review afterward. Original review Aug 2023: My recent experience with the Rinnai RU199iN tankless hot water heater has, in a single word, been excellent! It's like the ninja of water heaters - quiet and incredibly efficient in performance. Getting it up and running was straightforward, similar to the typical expectations of setting up the necessary plumbing, gas, venting, and electrical work. However, it's important to note that this isn't like replacing a conventional tank where everything falls into place easily. Rather, it is like a fitting jigsaw puzzle into place, not easy per se, but not too daunting either. The most fun was renting a rotary hammer from Home Depot to bore the vent holes though brick. For anyone worried about gas lines like me, you may appreciate this little surprise. The unit appears to have an internal gas booster pump. Ingenious, right? I chose to run it off of an existing gas line which was originally fed from a 1-inch line from the meter, with a brief downgrade to a 1/2 inch, before returning to a 3/4 inch. Despite my initial concern, it seems to function flawlessly under these conditions. But I am not complacent, and plan to eventually test all my gas appliances together in full throttle, just to be certain that the supply line capacity holds up. One of the most commendable features of the Rinnai RU199iN? Stable hot water output. Not once did I experience any hot water fluctuations during use. An absolute win! However, I did notice a slightly longer delay to get hot water on a cold startup, taking approximately 10 to 15 seconds longer compared to traditional heaters. But once it gets going, it provides steady, continuous hot water supply. Oh, and I must add - I did the installation myself. So, for all the DIY enthusiasts out there, this little project is quite manageable and rewarding. In conclusion, the Rinnai RU199iN tankless hot water heater has proven to be a stellar addition to my home. It delivers consistent performance, minimal noise, and solid dependability. If what you're after is a top-notch appliance that couples functionality with ease of use, then the Rinnai RU199iN certainly fits the bill. Five stars for this one, without a second thought! ... show more
Reviewed in the United States on August 2, 2023 by Review Monster Review Monster
    • Good product
We have hot water! Lots and lots of hot water! Great for our 2 showers, dishwasher and washing machine. We had no problems with installation and have been using it for a few months now and everything works great! Highly recommend.
Reviewed in the United States on September 8, 2024 by Vlad K
    • Best quality out there
Style: Tankless Size: 11 GPM
Very ez to do a self install. Better efficiency rating than the competition. 1/2" gas line compatible. Vents through 2" pvc.
Reviewed in the United States on October 6, 2024 by bgbytoys
    • ru199en
Review Image by Tim bell Tim bell
I installed this ru199en myself. I got it up and running around the 1st of April 2024. it's great! endless hot water. I can run the hot water from every source in my home and never have a break in hot water. my wife is thrilled, despite the price of it. this heater is replacing a less than 3 gpm electric tankless water heater that still works and is still connected, as a backup. as far as the ease of installation, it may be easier for some, depending your current setup and the location. I had to drill thru brick and crawl under my house, countless times to run the water and gas lines. it's very dirty under there. i also added a water filter to the inlet side because the county regularly has to repair water lines, in my neighborhood and a lot of dirt gets into the lines. now that it's done, I'm very satisfied. as for now, I highly recommend this water heater. I will update this review if needed. oh, one more thing. I did a lot of research before buying, including watching several youtube videos on the installation. i also have some maintenance background since I went to school for industrial maintenance and have been doing my own home repairs for 32 years. if you plan to do it yourself, do the research and be safe. ... show more
Reviewed in the United States on April 22, 2024 by Tim bell Tim bell
    • First Impressions
Style: Natural Gas, Indoor Installation Size: 11 GPM
Review Image by AZ Buyer AZ Buyer
Review Image by AZ Buyer AZ Buyer
I installed the unit at the end of April after concluding that the RU199iN was my best option based on a lot of research. These are my first impressions. On arrival, I was very impressed by the packaging. The unit is double-boxed with heavy foam isolation between the boxes. Unpacking was a breeze. I looked inside the unit to check for transit damage—no issues—and the build quality looked excellent. I installed the unit, which proved to be quite easy for a person with moderate plumbing skills. The instructions were excellent, and there are many YouTube videos that provide useful tips. Operational experience: The unit provides an excellent continuous source of hot water. No problem filling the jacuzzi while having a shower and using the dishwasher. In my opinion, you need a circulating pump to get fast hot water. We already had one with our tank unit because it took a long time for hot water to reach the most distant bathroom. So, I reused the circulating pump, which is controlled by our home automation system based on motion sensors in the bathrooms. This works great with this heater. So far, I only have two cons: The front cover screws are all covered by plastic snap-in strips, which I removed to inspect the internals. Once removed, they fit back quite loosely and don't seem to snap back in. The pressure release valve is shipped already attached to its union. The resulting assembly causes the outlet tube to be skewed, which looks unprofessional. I can easily fix it, but it would be better if the parts were shipped separately. That's it for now. I'll update the review when I've got some mileage and economy data. UPDATE 7/1/23. Ok we now have before and after gas bills without the variability due to using the gas furnace for home heating. Basically we are using 50% of the gas we used last year for water heating under similar use conditions. If anything we filled the big whirlpool tub more often this year. ... show more
Reviewed in the United States on May 12, 2023 by AZ Buyer AZ Buyer
    • Great Product!
Style: Natural Gas, Indoor Installation Size: 11 GPM
Took only few hours to get our old unit replaced. Works Great!
Reviewed in the United States on October 24, 2024 by celinaview

Can't find a product?

Find it on Amazon first, then paste the link below.