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High Efficiency Plus 7.5 GPM Residential 180,000 BTU/h Propane Interior Tankless Water Heater

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$undefined.00 /mo* suggested payments with months* financingApply Now
  • Enjoy endless hot water
  • Less space for heating gives you more space for living
  • Includes isolation and PRV valves; no additional purchase needed
  • View More Details
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Product Details

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. In fact, 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.
  • Energy factor of 0.82 / Uniform Energy Factor of 0.81
  • Equipped with Rinnai Circ-Logic - pair with an external pump to reduce wait time for hot water via scheduled or on-demand recirculation
  • Save time with hot water whenever and wherever you need it, any size home, even for simultaneous uses at multiple fixtures
  • Save energy and reduce utility costs by operating only when hot water is needed
  • Maximum output, minimum space; suitable for installation in non-traditional spaces such as crawl spaces and attics
  • Wi-fi ready
  • Complies with South Coast Air Quality Management District 14 ng/J or 20 ppm NOx emission levels
  • Residential warranty: limited 12-year on heat exchanger, 5-year on parts, 1-year on labor (5-year optional on labor); commercial warranty: limited 5-year on heat exchanger, 5-year on parts, 1-year on labor (2-year optional on labor)
  • *Note. Rinnai is changing the language in its warranty terms and conditions found in the current User Installation manuals. The existing statement will be replaced by the following: "This Limited Warranty applies only to products that are installed in the United States and Canada. Improper installation may void this Limited Warranty. It is recommended that a trained and qualified professional who has attended a Rinnai installation training class complete your installation." All warranties (old or new manual) will be honored as written above.
  • You can be confident in choosing to install Rinnai tankless technology in your home; our commitment to quality has made us the #1 selling tankless water heating brand in North America; your family deserves nothing less
  • Professional installation recommended; please call 833-746-6210
  • Rinnai branded accessories will ensure optimal performance of your Rinnai Tankless Water Heater.
  • Click here for more information on Electronic Recycling Programs
  • Return Policy
  • California residents



Questions & Answers

Q:I need 2 units, can I mixed RNR199IN and RU199IN, and have circulation pipe connected to RNR199IN, or do I need 2 RNR199IN?
by|Oct 10, 2022
1 Answer
Answer This Question

A:  Greetings, Please contact Rinnai directly at 1-800-621-9419. Thank you!

by|Oct 10, 2022
    Q:What model is it?
    by|Sep 2, 2022
    2 Answers
    Answer This Question

    A:  I can find no where to mention this RUR199iN is discontinued, please share more info.

    by|Oct 10, 2022

      A:  Greetings, Both units are very similar but the RUR199in has a recirculating fan and the RU199in does not. Additionally, the unit RUR199in has been permanently discontinued by the manufacturer. Thank you!

      by|Sep 4, 2022
        Q:It seems the Specifications link on the Home Depot Site links to the External model. Is it possible for someone to resolve this? *So the specification link shows the actual specifications of the unit it's linked to?
        by|May 1, 2022
        0 Answer
        Answer This Question
        Q:How do you connect a recirculation device in order to get quicker hot water to the farthest sink in the house? with a Rinnai tankless model MC-91-2us-s
        by|Apr 23, 2022
        1 Answer
        Answer This Question

        A:  Watch https://m.youtube.com/watch?v=4hUwciiaIBM

        by|Apr 24, 2022
          Showing 1-4 of 54

          Customer Reviews

          4.5 out of 5
          • 4.5
            out of 755 reviews
          • 60% recommend this product
          Filter by:
          Showing 1-10 of 755 reviews
          The biggest piece of junk
          After doing what is supposed to be the right thing for energy saving we bought this piece of crap Rinnai tankless water heater. The reason you save on natural gas is because you just give up waiting for hot water. So now other than showers it’s cold water for everything. Even the shower I turn on the hot water and have a shave in the meantime it takes that long to get hot water. As for reliable we have the plumber over at least every couple of months to fix it. I’m getting close to going back to a tank type water heater. What a disappointment
          Response from Rinnai Product ExpertSep 9, 2022
          We are so sorry for the issues. This is not the experience we would want. Can you please email us at feedback@rinnai.us we would like to see how we can help. --Tashay RinnaiAmerica
            So far (2 weeks after install), this unit appears to be working as advertised. It performs consis...
            So far (2 weeks after install), this unit appears to be working as advertised. It performs consistently and we've not yet pushed the limits enough to run low on hot water. While you do get 'endless' hot water, there is a limit to how much it will make at once. In our area, the temperature rise required (delta T) is about 50 degrees. So according to Rinnai's website we should expect about 8 gallons per minute from this RUR199i, not the 11GPM mentioned in the title. The only (very) minor issue we've had with this one is that the manual is incorrect in the parameter settings for the recirc frequency. The settings for 'comfort' (6 cycles per hour) vs 'economy' (3 cycles per hour) are reversed from the documentation. I've verified this with a temperature logger. (Yes, I'm that much of a nerd). Beware installing this unit if you don't have significant experience with plumbing, venting and/or electrical. I would also recommend the add-ons that I've done to mine. I've installed a small thermal expansion tank on the cold side between the unit and the check valve to keep the pressure on the hot side from constantly spiking to 150PSI. And I added a UPS (uninterruptible power supply) on the power feed to help with short power outages. The wifi app that comes with it is very kludgy, buggy and barely functional. They should definitely invest more there to make it more functional and stable.
              • Recommended
              8 found this review helpful
              Impressed and some recommendations
              I just moved in to my new place and the 50 gal traditional water heater was in need of replacement (hints of leaks surrounded the installation). It was a somewhat hard choice since money savings was just marginal. A tankless had high installation cost and it wasn't clear if it would be recovered with the lowered energy usage. However, the original tank was shoe horned into a nook and made maintenance difficult (e.g. can't easily replace the anode) and it would be nice to use the recovered space for a water softener. Decided on the RUR199i because of the reciculation feature. Installed and mostly working like a champ! Still struggling with the Control-R app for adusting temperature. Haven't called Rinnai yet. But there are some suggestions: Mount it on a wall away from living spaces if possible. There is a low hum when it is in use and if it is mounted on a shared wall with a living space, you'll notice it. The noise is especially noticiable when the reciculation pump is running. Use flexible connections if possible. Things are very tight and it'll save you quite a bit of time. I wanted a neat installation a with pressure valve and hose bibs and all pipes in-wall and that took most of the time. Workout connection locations with the unit on the floor and be aware of the standoff distances from the wall as the cold water connections is close to the wall and if not properly planned could lead to a lot of headaches ;-) If using hard pipe for the condensate drain, add a union to simplify future maintenance (e.g. if you need to remove the unit).
                • Recommended
                6 found this review helpful
                Meets need and expectations.
                Meets need and expectations.
                • Verified Purchase
                • Recommended
                So far water heater works great,
                Only had the product a few months but so far it works great,
                  Energy Efficient!
                  Always had a hot water heater so no previous experience with a tankless water heater. Takes a while for water to heat after turning on hot tap but once water is hot it continues for as long as needed.
                    Replaced my heating system and hot water heater.
                    The on demand hot water is great. We have had it now for about 6 months.
                      simple switch and fired right up
                      older units front panel just swung open. on this unit you must take off trim 6 screws
                        Excellent energy savings
                        Our Rinnai has been fantastic in saving money on electric bill. I like that it is so energy efficient using propane at a minimal cost. We have had it a little over a year. The only thing I dislike is the amount of time it takes for the hot water to travel from the garage where located to the master bath at the far end of the house.
                          On Demand Water Heater
                          Water Heater works as advertised. It has been on operation for about 1 year now.
                            Showing 1-10 of 755 reviews

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                            NameHigh Efficiency 7.5 GPM Residential 180,000 BTU Natural Gas Interior Tankless Water HeaterHigh Efficiency Plus 7.5 GPM Residential 180,000 BTU/h Propane Interior Tankless Water HeaterPerformance Platinum 11 GPM Natural Gas High Efficiency Indoor Recirculating Tankless Water HeaterPerformance Platinum 9.5 GPM Natural Gas High Efficiency Indoor Tankless Water Heater
                            $924.74 Save $92.48 (10%)
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                            Buy 3 or more $1322.10
                            Gas TypeNatural GasPropaneNatural GasNatural Gas
                            Number of Showers1-31-32-42-4
                            Application TypeResidentialResidentialResidentialResidential
                            Efficiency LevelHighHighSuper HighSuper High
                            Water Heater FeaturesFreeze Protection,Wall Mounted,WiFiFreeze Protection,Wall Mounted,WiFiFreeze Protection,Ultra LoNox,Wall MountedUltra LoNox,Wall Mounted
                            Fuel TypeGasGasGasGas
                            Required Volt Connection120 volt120 volt120 volt120 volt
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