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Rinnai

NEW Rinnai RX199iN Condensing Smart Sense Natural Gas or Propane Tankless Water Heater, Indoor or Outdoor Water Heater, Up to 11.1 GPM, 199,000 BTU

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Availability: Only 1 left in stock, order soon!
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Arrives Aug 16 – Aug 18
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Style: RX199iN - 11.1 GPM


Features

  • 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 11.1 GPM (7 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 .98; 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

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. 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: 11.1 Gallons


Power Source: Gas Powered


Product Dimensions: 18.5"W x 30.11"H


Special Feature: Smart Sense gas control system, Versa Vent


Power Source: Gas Powered


Special Features: Smart Sense gas control system, Versa Vent


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 (UEF .98)


Maximum Pressure: 150 Pound per Square Inch


Mount Type: Wall


Is Electric: No


Smart Home Compatibility: Smart Home Compatible


Capacity: 11.1 Gallons


Item Dimensions W x H: 18.5"W x 30.11"H


Item Weight: 55 Pounds


Item Depth: 11.4


Brand Name: Rinnai


Model Number: RX199iN


Manufacturer: Rinnai America Corporation


Manufacturer Warranty Description: 5 Year Labor, 5 Year Parts


UPC: 766156017346


Manufacturer Part Number: RX199


Included Components: Sensei RX 11 GPM 120 Volt Residential, Tankless Water Heaters


Unit Count: 1.0 Count


Item Type Name: Water Heater


Color: Silver


Style Name: RX199iN - 11.1 GPM


Material Type: Copper, Metal, Stainless Steel


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Aug 16 – Aug 18

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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Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Go Tankless
Style: RX199iN - 11.1 GPM
Very reliable and quiet. Our previous home had one. Easy installation, care and maintenance. Fast Hot water even when more than one appliance is using it.
Reviewed in the United States on April 6, 2026 by Connie Osborne
    • Rinnai for the win
Style: RX199iN - 11.1 GPM
My 11 year Rinnai water heater died, so I had to purchase a new one. This one has been a fantastic replacement! My plumber was able to quickly install it in just a couple of hours and was able to adjust it to propane vs. natural gas within the heater. The price I paid for it here was cheaper than what I would have paid through my local Rinnai dealership. It has worked well, and has been easy to adjust the temp, if needed. It is nice to have hot water again. I would definitely recommend the Rinnai brand, if you are seeking a tankless water heater. ... show more
Reviewed in the United States on May 10, 2026 by Amazon Customer
    • Good value for home
Style: RX199iN - 11.1 GPM
Great item. Saves money and space. Functions well.
Reviewed in the United States on March 30, 2026 by Robert
    • So glad we made the switch
Style: RX199iN - 11.1 GPM
After about 6 months with this installed, we are so happy we made the change to an on-demand. This water heater really does a great job serving our 3 bd home (family of 5). We can run more than one shower at a time and don't even notice a difference in water pressure or temperature. It runs pretty quietly, although we have it in our entry space so it's not in any main living area. It seems to be fairly efficient as well, we're really happy with the unit. ... show more
Reviewed in the United States on June 8, 2026 by Tiffany H.
    • Showering - OK! Just washing your hands after going to the bathroom? Not gonna happen.
Style: RX199iN - 11.1 GPM
I needed to replace my leaking 30 gal oil fired indirect water heater. So I installed this hoping to save money. With a house of 7 people it makes hot water more efficient, BUT it takes so long to get hot water 25' away if you want to put a small amount for a recipe or wash your hands. It causes you to waste (softened in my case) water, because you have to wait for it to get to temp. But once you get hot water, it's nice. Save on fuel cost. Spend more on water cost. ... show more
Reviewed in the United States on May 10, 2026 by Dave Mahoney
    • Amazing energy efficient water heater! Amazing energy efficient water heater!
Style: RX199iN - 11.1 GPM
Review Image by Jonathan, Huntsville AL
Arrive double box in perfect condition !! This is a great unit, set up was super easy. Replaced an older Rinnai this new model is like 20 pounds lighter. The older unit developed a leak after 15 years (probably my hard water) and the authorize repair center wanted almost as much as a new one to repair so I got this one. I was able to use the original concentric vent so I was happy about that. This model I installed was without the recirculating pump. I don’t mind waiting just a couple of minutes for hot water the recirculation kind of defeats the purpose of not using energy until you need it!! One note about my installation is I have a glitchy power grid so I have a UPS connected to mine to protect it from surges and momentary power losses. Even though it’s gas fed when you lose power no more hot water! ... show more
Reviewed in the United States on February 13, 2025 Reviewed in the United States on February 13, 2025 by Jonathan, Huntsville AL
    • Works amazing! Works amazing!
Style: RX199iN - 11.1 GPM
Review Image by Jonathon Bennett
Works great! No more running out of hot water with 3 girls in the house. Surprised at how many fixtures can be used at once!
Reviewed in the United States on May 16, 2026 Reviewed in the United States on May 16, 2026 by Jonathon Bennett
    • I did it myself. Except the gas line. I did it myself. Except the gas line.
Style: RX199iN - 11.1 GPM
Review Image by Jim
Review Image by Jim
Review Image by Jim
Review Image by Jim
Review Image by Jim
Review Image by Jim
Review Image by Jim
Review Image by Jim
"Here's the detailed step-by-step installation manual, written in clear English. Do NOT install this yourself. ...*wink*" Except for the gas line, I installed this myself, which is something Rinnai clearly does *not* want you to do. It's condensing, so slope the exhaust. Make sure the exhaust is configured as specified and does not leak, so that you don't unalive yourself or anyone else you care about. Or, pay someone $4k to $10k to install it. Your call. The bigger your family the more you'll see your water bill go up. It's not the fault of the unit. It's that unlimited hot water makes showers last a lot longer. Don't neglect the maintenance. A flush kit and a gallon of white vinegar is cheap insurance. Personally, I have a two stage whole house water filter and a water softener in front of this unit. I still flush it twice a year. Because why not. I opted not to get the recirculation system. The added cost in parts and labor, for me, was like meh. ... show more
Reviewed in the United States on June 12, 2026 Reviewed in the United States on June 12, 2026 by Jim

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