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Rinnai

NEW Rinnai RX180iN Condensing Smart Sense Natural Gas or Propane Tankless Water Heater, Indoor or Outdoor Water Heater, Up to 10 GPM, 180,000 BTU

    • Based on 136 reviews
Condition: New
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Availability: In Stock.
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Arrives Sunday, Apr 6
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Style: RX180iN


Size: 10 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 10 GPM (6 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


Product Dimensions: 19"W x 31"H


Color: Silver


Wattage: 76 watts


Voltage: 120 Volts


Brand: ‎Rinnai


Product Dimensions: ‎19"W x 31"H


Color: ‎Silver


Wattage: ‎76 watts


Voltage: ‎120 Volts


Maximum Flow Rate: ‎10 Gallons Per Minute


Maximum Temperature: ‎140 Degrees Fahrenheit


Heat Output: ‎180000 British Thermal Units


Efficiency: ‎High (0.98 UEF)


Maximum Operating Pressure: ‎150 Pound per Square Inch


Mounting Type: ‎Wall


Is Electric: ‎No


Manufacturer: ‎Rinnai America Corporation


UPC: ‎766156017353


Manufacture Year: ‎2021


Part Number: ‎RX180iN


Item Weight: ‎54 pounds


Country of Origin: ‎Japan


Item model number: ‎RX180iN


Size: ‎10 GPM


Item Package Quantity: ‎1


Included Components: ‎mount


Batteries Required?: ‎No


Date First Available: November 20, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Apr 6

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.

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Top Amazon Reviews

    • Fantastic Water Heater
Style: RXP160iN Size: 9 GPM
Review Image by Carlos Parra Carlos Parra
High quality build and tech design. Installation is straight forward thanks to the excellent, detailed instruction manual*. Nonetheless, pre-planning mounting location, materials, electrical service outlet if not already available, is strongly advised. To really maximize energy efficiency, the On Demand BLE Bluetooth button accessory is recommended vs the auto cycle which I found to be cycling every 10mins vs. 28mins as defined by the temperature setting. It was to the point that even the cold water taps were warm, so a lot of wasted energy. Instead, we bought the BLE button accessory ($32) to activate the water recirculation 5 min cycle while getting ready to shower; we turn on shower and with 15 seconds, hot water is flowing saving lots of water and energy!! We are thrilled by knowing we will be saving tons of water and energy year over year. * My only critique is the installation manual is limited in explaining some of the non-critical setup parameter features when configuring the unit for initial operation and does not make clear what you need to set up the Bluetooth on demand operation. I had to call their tech support to figure out the cost effective BLE button option ($32) for on demand set up. Also the app is very limited for the customer personal use features unless you buy a wifi module accessory to allow some remote features set up (more complex installation, $200+). Overall minor quips. The unit is of high build quality and sophisticated technology design that provides hot water efficiently and saves water due to the On Demand recirc feature!! Love it! ... show more
Reviewed in the United States on June 23, 2024 by Carlos Parra Carlos Parra
    • Amazing energy efficient water heater!
Style: RX199iN Size: 11.1 GPM
Review Image by Jonathan, Huntsville AL 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 Jonathan, Huntsville AL
    • Why did I wait so long?
Style: RXP199iN Size: 11.1 GPM
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
    • Valves not included.
Style: RX160iN Size: 9 GPM
Purchased the RX160iN, I was not sure if it came with the valve kit (nothing in the description) and did not unfortunately which that makes the price not a savings compared to Home Depot. The unit is nice and insulated easy. Love the endless hot water.
Reviewed in the United States on March 8, 2025 by not given
    • Powerful whole house water heater, works great
Style: RXP199iN Size: 11.1 GPM
Easy to install and very easy setup with bluetooth from your phone. Works great for a household of 5 or more. Powerful enough to use hot water at 4 places in the household at the same time. Has the water circulation pump built-in which makes it very comfortable with fast access to hot water at the faucet, no waiting. Make sure you have a drain for the condensation, best with condensate neutralizer and pump if you cannot drain into backyard. Works great, water temperature can be regulated. Supports natural gas or propane. ... show more
Reviewed in the United States on November 12, 2024 by Oliver Schmitz
    • High efficiency.
Style: RXP199iN Size: 11.1 GPM
Got this and it works beautifully. This unit has remarkable efficiency and crafted with the kind of quality you just don't see on tank based units. Like comparing a formula 1 car to a farm implement. My utility company was offering a $1300 rebate which made the decision a no brainer.
Reviewed in the United States on January 20, 2025 by PersonaGratis
    • Excellent!
Style: RX199iN Size: 11.1 GPM
Review Image by Reidraco Reidraco
The installed tankless water heater...We are very happy with this tankless water heater! We are still getting used to being able to take a shower & use the washer or dish washer at the same time or even to use both showers. Our plumber did a fabulous job on install and we made a tweak to the air-inflow, but are just happy to now have hot water. ... show more
Reviewed in the United States on February 14, 2025 by Reidraco Reidraco

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