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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

  • Based on 290 reviews
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Availability: 20 left in stock
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Arrives Friday, May 29
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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, 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: Friday, May 29

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.

  • Klarna Financing
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  • PayTomorrow Financing
  • 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

    • 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
    • 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
    • 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
    • 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 by Jonathan, Huntsville AL
    • 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
    • Hot water when you need it.
Style: RX199iN - 11.1 GPM
Best of the best! Don't keep shopping. We bought this unit twice, and we'd readily buy a third one. You need to understand the physics, so you don't mind waiting on the hot water to hit the spigot. It's a moment longer that the tank water heaters, but the wait is worth the savings and the consistency. ... show more
Reviewed in the United States on March 11, 2026 by Tom E
    • 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 by Jonathon Bennett
    • Great
Style: RX199iN - 11.1 GPM
Love it. Water gets hot fast replaced two 50 gal water heaters with it
Reviewed in the United States on April 3, 2026 by Rhonda Lackey

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