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Rinnai

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

    • Based on 878 reviews
Condition: Used - Like New
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Availability: Only 3 left in stock, order soon!
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Arrives Saturday, Jan 25
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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


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


Voltage: ‎120 Volts


Maximum Flow Rate: ‎11 Gallons Per Minute


Efficiency: ‎Low


Style: ‎Natural Gas, Indoor Installation


Maximum Pressure: ‎6E+1 Pound per Square Inch


Mounting Type: ‎Wall


Is Electric: ‎No


Manufacturer: ‎Rinnai


Item Depth: ‎11.45 in / (290 mm)


UPC: ‎766156009532


Global Trade Identification Number: ‎32


Part Number: ‎RU199iN


Item Weight: ‎74.1 pounds


Item model number: ‎RU199iN


Is Discontinued By Manufacturer: ‎No


Size: ‎11 GPM


Pattern: ‎Water Heater


Installation Method: ‎Wall Mounted


Item Package Quantity: ‎1


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


Included Components: ‎Water Heater


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎See Manufacturer


Date First Available: May 4, 2018


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Jan 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • 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
    • Wonderful water heater with good flow rate for family of 8
Style: Natural Gas, Indoor Installation Size: 11 GPM
We purchased this tankless water heater in 2020 after going through 3 traditional water heaters in 9 years. This tankless water heater has been amazing for our family of 8. 4 years in it is still going strong. We no longer run out of hot water while trying to get the whole family through showers and baths. The output is plenty for almost everything with a few caveats. The first is we can run two showers simultaneously without any noticeable decrease in water pressure but when running all three there is a significant drop in water pressure but additional units can be chained together to solve that problem. The second issue we've had is with our front-load washing machine. I'm not sure if it's just our model but for whatever reason if we run two showers with the washing machine you can tell every time the washing machine starts pulling water. The dishwasher and sinks don't have any noticeable impact to water flow. So if you want to run more than two showers at a time you may want a second water heater but for our family of 8 this product has been amazing! ... show more
Reviewed in the United States on December 9, 2024 by Paul T.
    • Hot water forever.
I thought I was going to be disappointed in the size for volume because the website has a configuration model that stated the next size up for my house size. I am not disappointed. The install is pretty easy if you know how to plumb, or have an idea of how you want to plumb this in yourself. It sets at 120 F without needing to make a bunch of adjustments to get it up and running. You could set it up on cinder blocks and hook hoses up to it and have hot water. I have had the washer going and take a shower with the kids flushing the toilet and washing their hands and not lost the hot water with a minimal pressure drop. I did have to place a 2 1/2 gal bucket underneath for the excess that drops out of the bottom, but I only empty that once in the five months I've had it running. This is a whole house unit that operates as intended with no hiccups to speak of. We have had power outages and not had to reset anything. It's just there and we don't have to think about it. I would recommend sending water to it through a filter system regardless of where you live. ... show more
Reviewed in the United States on July 18, 2024 by Brandon Buford
    • Worth the price.
Style: Natural Gas, Indoor Installation Size: 11 GPM
I bought this unit about two years ago. It has exceeded my expectations. I have a teenager who takes our long showers. I can get in the shower at the same time and never want for hot water. You don’t have to wait but a few seconds for the water to be hot, and it never runs out. Excellent product.
Reviewed in the United States on January 4, 2025 by Jerri G. Smitko
    • Hot water!
Style: Propane, Indoor Installation Size: 9 GPM
It works absolutely great. Installed and running with a little work after replacing a tanked type water heater. I have 1/2” propane line and it calls for 3/4” but still works great even with two showers running at the same time.
Reviewed in the United States on December 19, 2024 by Ryan M.

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