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Rinnai

NEW Rinnai RXP199iN Smart Sense Condensing Tankless Water Heater, 199,000 BTU, Up to 11.1 GPM, Natural Gas or Propane, Indoor/Outdoor Installation, Built-In Recirculation Pump

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Arrives Thursday, May 28
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Style: RXP199iN - 11.1 GPM - With Pump


Features

  • Indoor or Outdoor Installation Natural Gas or Propane Compatible. Versatile Rinnai RXP199iN condensing tankless water heater installs indoors or outdoors using Versa Vent (RX-OVC vent cap required for outdoor setup). Smart Sense gas control automatically adapts to natural gas or propane, making this whole house on-demand water heater ideal for residential replacement or new construction.
  • Endless On-Demand Hot Water Up to 11.1 GPM, 199,000 BTU. High-efficiency tankless gas water heater delivers up to 11.1 gallons per minute and 199,000 BTU, supplying hot water to multiple fixtures simultaneously (up to 7). Perfect whole home solution for showers, laundry, dishwasher, and large householdsno storage tank required.
  • High Efficiency Condensing Design UEF 0.98. Energy-efficient condensing technology with an ultra-high UEF .98 helps reduce energy costs compared to traditional tank water heaters. Compact, space-saving design fits in tight utility rooms while providing powerful performance. Quick Flush feature simplifies maintenance and descaling.
  • Built-In Recirculation Pump with Smart-Circ Technology. Integrated internal pump with Smart-Circ intelligent recirculation learns your household water usage patterns to deliver faster hot water while minimizing waste. Ideal for homes seeking improved comfort, water conservation, and energy savings.
  • Smart Home Ready & Professional Installation Recommended. Compatible with Rinnai Controlr module (sold separately) for WiFi monitoring and smart home control via the Rinnai Central App. Professional installation recommended for optimal performance, warranty protection, and safe gas water heater setup.

Description

Rinnai's super-high efficiency plus (UEF .98) 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. With Smart-Circ, Rinnai RXP model water heaters learn your water usage patterns to start circulating hot water on your schedule, anticipating your hot water needs for a shorter wait and saving energy during times when you don't typically use hot water. 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).

Brand: Rinnai


Capacity: 60 Cubic Inches


Power Source: Natural Gas or Propane


Product Dimensions: 19"W x 31"H


Special Feature: Smart Sense gas control system, Versa Vent, Smart-Circ Intelligent Recirculation, WiFi connectivity through the Control-R module See more


Power Source: Natural Gas or Propane


Special Features: Smart Sense gas control system, Versa Vent, Smart-Circ Intelligent Recirculation, WiFi connectivity through the Control-R module


Wattage: 98 watts


Voltage: 120 Volts


Flow Rate: 11 Gallons Per Minute


Maximum Temperature: 140 Degrees Fahrenheit


Heat Output: 199000 British Thermal Units


Efficiency: High


Maximum Pressure: 150 Pound per Square Inch


Mount Type: Wall


Is Electric: No


Smart Home Compatibility: Smart Home Compatible


Color: Silver


Style Name: RXP199iN - 11.1 GPM - With Pump


Material Type: Stainless Steel


Brand Name: Rinnai


Model Number: RXP199iN


Manufacturer: Rinnai America Corporation


UPC: 766156017308


Manufacturer Part Number: RXP199iN


Included Components: mount


Unit Count: 1.0 Count


Item Type Name: Water Heater


Capacity: 60 Cubic Inches


Item Dimensions W x H: 19"W x 31"H


Item Weight: 58 Pounds


Item Depth: [INFERRED Relatively Shallow, Specific Value Not Provided]


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 28

This item is non-returnable:

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

View our full returns policy here.

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Top Amazon Reviews

    • Fantastic
Style: RXP199iN - 11.1 GPM - With Pump
It works as expected. The only issue is the rinnai central app. It does not work. The heater is fantastic. Non stop hot water for the whole house. It does make some noise que running, nothing major if it’s in the garage or outside. Definitely worth the money. They should make these standard across the board. It will not take that much space. As for durability they offer a great warranty when installing. Would do it it again 10/10 ... show more
Reviewed in the United States on January 19, 2026 by Amazon Customer
    • It’s a great product! I am really happy with ours!
Style: RXP199iN - 11.1 GPM - With Pump
We are a big family. 5 grown adults. The Hot Water Tank we had (A.O. Smith, 50 gallon) had come with the house. If I am not mistaken, it was from 2004. We knew it would need replacing at some point…we just prayed it wasn’t gonna die —but it did. During Tornado Season. We had a tornado tear through town, and yes, we had damage. We needed a new roof and a new fence. Two Deductibles, totaling $14K. We were not amused. 😒 However, now that it had failed, what do we do? Tankless Water Heaters have been around and it has had many iterations. Our son, did a deep dive on TWH, and he found two. Both Rinnai. Given the #of people living here who like to take long hot showers…and me, who likes to do laundry in the morning…the 11.1 gallon was an easy pick. Our son installed it. (It’s good to have a kid in the trades) He said he had to add a 90* PVC for ventilation, but the install was pretty straightforward. It is so quiet! Our son’s bedroom is right behind the back wall of the utility room and he never hears it. I hear it recirculating in our bathroom, which is easily 70’ from the TWH. The promptness of hot water flowing to our bathroom is amazing! I’m happy to say I am happy how well it works in the background. Once that 50 gal tank was removed, planning placement was obvious for us. It saved space to get the other monster (The Furnace) room to breathe. We paid $1770.00 — and I know a regular old water heater would have been cheaper to buy, but with all the bells and whistles this product has, I think we will get our money’s worth. ... show more
Reviewed in the United States on October 21, 2025 by Ross
    • awesome
Style: RXP199iN - 11.1 GPM - With Pump
amazing water heater. easy to install and works as it should.
Reviewed in the United States on February 8, 2026 by Omid Fatouraee
    • Why did I wait so long?
Style: RXP199iN - 11.1 GPM - With Pump
Review Image by McNally Family McNally Family
Love this tankless hot water heater! We never run out of hot water and with the remote Bluetooth Re-circulation Push Button (RPB200, you can have up to 5), we activate the demand for hot water only when we need it. While you can still wait momentarily for the hot water, the difference is your not running water while you wait! When we anticipate demand for hot water, we simply push the button (located near kitchen and bathroom sinks), and after a moment or two, turn on the water and it's hot! No more paying for water and sewage fee's just waiting for hot water. You can thank the "Thermal Bypass Valve", included with the RXP model, that is installed at the furthest point away from the water heater (unless you have a dedicated re-circulation return line, which we didn't). One consideration many people overlook, is what happens during a power outage. The answer is "nothing", literally! The unit requires electricity to ignite the gas burners. For this reason, the need to include a backup power source for emergency's is crucial. We included a battery backup unit from Safeguard Power Solutions called "Hugo", which transfers power to the tankless unit immediately upon detecting a power failure, and maintains that power until either the grid power is restored, or the battery is depleted. In an attempt to extend the potential life of the battery, we also purchased the "Flow-Sensor" option with our Hugo purchase. This limits the demand for power to only when water flow is detected (when someone turns on the hot water), rather than draining the battery constantly. While an added cost to the project, life with a tankless unit is different from life with a tank style hot water heater (that 50 gallon reserve of hot water is gone). The initial installation costs will be higher, primarily because a tank style water heater is generally plumbed from above, while a tankless unit plumbs from the bottom, requiring more extensive modification. Having said that, in the future, replacement units should be simple, as is replacing a tank style with a new tank style unit would be today. Finally, I would be remiss not to mention the $600.00 tax credit (30% of purchase/installation cost, up to $600.00 max), we received when filing our tax's this year (2024). The tax credit is limited to only the most efficient models, so do your homework before making a purchase decision. **Water Heaters (Natural Gas) Tax Credit: https://www.energystar.gov/about/federal-tax-credits/water-heaters-natural-gas-oil-propane-tax-credit This tax credit is effective for products purchased and installed between January 1, 2023, and December 31, 2032. ... show more
Reviewed in the United States on February 18, 2025 by McNally Family McNally Family
    • easy install & set up
Style: RXP199iN - 11.1 GPM - With Pump
meets all my expectations. had to raise the temp to 125 but after that I have plenty of hot water. unit is noisier then i expected but is in my basement so doesn't matter. I installed the bypass and bought the wifi module which is convenient but necessary. also have a couple of the buttons to start the pump. not sure im impressed with the amount of time it takes to get the hot water....about same as prior. only disappointment is when i turn a faucet to full hot water, the flow seems to drop. I don't recall that with the tank. Am quite happy though after a couple weeks. ... show more
Reviewed in the United States on May 15, 2025 by Kevin Owen
    • Cycles hot water in a loop and learns your needs and times of use.
Style: RXP199iN - 11.1 GPM - With Pump
Best tankless water heater ever.Hot water Recycling feature that learns your needs fantastic.
Reviewed in the United States on February 1, 2026 by davidlong
    • REALLY POOR SERVICE FOR CUSTOMERS
Style: RXP199iN - 11.1 GPM - With Pump
You can't do basic service for this unit if you are not a licensed plumber. You are locked out of the unit. Only a plumber gets to speak directly with a tech. All others must CHAT and waste your time. I do not recommend anyone buy a Rinnai product. Find another tankless company that let's you speak directly with a tech. You can buy lots of hot water heaters for what your plumbers bill will be on a Rinnai product. I AM NOT PLEASED AT ALL WITH THEIR SERVICE. OH, IF IN CASE YOU DO BUY ONE A SIMPLE FIX IS TO JUST UNPLUG THE UNIT FOR ONE MINUTE, THEN PLUG IT BACK IN. GOOD LUCK FINDING THAT IN THE LITATURE! I ACTUALLY TRIED IT BUT EVIDENTLY DID NOT LEAVE IT UNPLUGGED LONG ENOUGH! The unit RESETS itself when it looses power. You have to do a reset! So simple but not in the manual that I can find! ... show more
Reviewed in the United States on August 8, 2025 by Amazon Customer

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