Price: $299.00 - $1,141.70
(as of Nov 29, 2024 03:11:09 UTC - Details)

Rinnai's super-high efficiency plus (UEF .97) condensing indoor/outdoor tankless water heater models offer advanced technology that adapts to suit the needs of any household. Our convertible on-demand water heaters are able to operate using either propane or natural gas thanks to a Smart Sense gas control system and can be installed indoors or outdoors with one simple adaptation thanks to the new Versa Vent. Additional features on this natural gas and propane water heater include an easy-to-use interface and Quick Flush function for simplified flushing. Unlike tank heaters which accumulate rusty sediments, this tankless water heater has a longer lifespan. Designed to be extremely compact, this small water heater only takes up the space of a small suitcase, letting you reclaim some of your home's most valuable real estate. This Energy Star qualified small hot water heater can be made even smarter with Wi-Fi connectivity through the Control-R module (sold separately).
One Model, Anywhere: This Rinnai tankless water heater is installable indoors or outdoors thanks to our new Versa Vent and powered by either propane or natural gas thanks to a Smart Sense gas control system; RX-OVC vent cap required for outdoor install
Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: This condensing propane and natural gas tankless water heater from Rinnai is only the size of a small suitcase, but provides up to 7.1 GPM (4 fixtures at once)
Smart, Efficient Design: This water heater's modern design includes an easy-to-use interface, Quick Flush feature for simplified flushing, as well as a super-high energy efficiency factor of UEF .97; See Controlr module for WiFi control (not included)
Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to find a qualified technician to install your tankless water heater, and use the Rinnai Central App for help with setup, service & troubleshooting; We do not recommend installing a water heater without a technician
Find Your Rinnai: See our product guides, manuals, energy guide, warranty information, videos, and tables to find the right tankless water heater size for your home; Check our Ground Water Temperature Map to see if this heater is optimal for your region
Reviewer: Review Monster
Rating: 5.0 out of 5 stars
Title: High-Performance & Hassle-free - Rinnai RU199iN Delivers!
Review: 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!

Reviewer: Vlad K
Rating: 5.0 out of 5 stars
Title: Good product
Review: 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.

Reviewer: bgbytoys
Rating: 5.0 out of 5 stars
Title: Best quality out there
Review: Very ez to do a self install. Better efficiency rating than the competition. 1/2" gas line compatible. Vents through 2" pvc.

Reviewer: Tim bell
Rating: 5.0 out of 5 stars
Title: ru199en
Review: 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.

Reviewer: AZ Buyer
Rating: 4.0 out of 5 stars
Title: First Impressions
Review: 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.

Reviewer: celinaview
Rating: 5.0 out of 5 stars
Title: Great Product!
Review: Took only few hours to get our old unit replaced. Works Great!

Reviewer: Amazonl Customer
Rating: 1.0 out of 5 stars
Title:
Review: Unit arrived damaged and obviously previously used. Hoping to get another unit that has not been tampered with

Reviewer: Richard C
Rating: 5.0 out of 5 stars
Title:
Review: Not normally a review writer but... After having a prior Rinnai propane outdoor unit running heating and domestic water, then in my most recent house I replaced two 60 gal CNG standups with this unit. It is tied in with a 30 gal reservoir/storage tank and a recirc pump to maintain tank temp (not a domestic hot water loop). I have gas experience and previous mechanical/ building cert. so install was fairly straight forward. Planning and design are important. It condensed down a massive setup into a small compact space saving design. Ultra quiet and as advertised, unlimited hot water. Had a plumber I talked to give me a spiel about another no name brand he uses, having to upgrade my water pump and pressure tank etc. Be sure your installer knows what they are doing or it will definitely be a bad experience. Done properly you will be pleased.Update: Over one year later, no problems or issues with my heater. Still love this unit.

Reviewer: Bryan taylor
Rating: 5.0 out of 5 stars
Title:
Review: Works better than expected, install was a breeze, came with the propane conversion kit that installed in minutes, is very quiet, hot water comes fast. Very nice looking unit. very impressed so far, been hooked up now for 2 weeks. water is HOT, Taking water from a 100 foot deep well in the winter (around -15C lately) and it can heat it to 140 degrees easily. ended up setting temp to 125 degrees. Well worth the price, I also installed an anti scaling filter as well for extra protection. Replaced a 40 gallon electric tank with this, lower element wasn't working, and the warranty period expired. This unit will definitely lower my electric bill. A couple of neighbours have similar units and say they use approximately 100 lb of propane a year, so that would run about $130 a year at current prices in my location. so hopefully this will save $300-500 a year for me on electricity

Reviewer: Sean G
Rating: 5.0 out of 5 stars
Title:
Review: I installed the water heater in a 12x8 shed where I installed water filters, UV, washing machine and shower stall for our campers for the past 5 months. Used it daily with a 20lb propane tank. Conversion was easy. Switching propane tanks sometimes causes air long that takes a moment to expel, so bigger tanks would be a good idea in my case for next year.

Reviewer: Amazon Customer
Rating: 5.0 out of 5 stars
Title:
Review: I ordered a propane unit and a natural gas unit showed up with a conversion kit very easy to convert and install and can be converted back to natural gas if ever needed all in all it’s a perfect unit