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Rinnai RSC199iN Smart-Circ Condensing Gas Tankless Water Heater, Super High Efficiency Plus Natural Gas Water Heater, Up to 11 GPM, Indoor Installation, 199,000 BTU, Gray

  • Based on 42 reviews
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Availability: In Stock.
Fulfilled by eFaucets

Arrives May 18 – May 19
Order within 15 hours and 53 minutes
Available payment plans shown during checkout

Features

  • Smart-Circ Intelligent Recirculation: This tankless hot water heater features Smart-Circ technology that learns your water usage patterns, then schedules pump and recirucation accordinlgy for superior energy efficiency and convenience
  • Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: This indoor condensing tankless hot water heater from Rinnai is only the size of a small suitcase, but provides up to 11 GPM (7 fixtures at once)
  • Smart, Durable Design: With multiple venting options, water heater fits a wide array of spaces; Includes 15-, 5-, and 1-year residential guarantee for heat exchanger, labor, and parts, respectively; See Controlr module for WiFi control (not included)
  • Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to locate a qualified technician in your area to install your tankless water heater; 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 for your home; Check our Ground Water Temperature Map to see if this heater is optimal for your region
  • ENERGY STAR qualified with Uniform Energy Factor of 0.113

Description

Rinnai's super high-efficiency plus condensing outdoor tankless water heater models offer the most advanced technology. Now, with Smart-Circ™, Rinnai RSC 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 Engery Star qualified hot water heater can be made even smarter and with Wi-Fi connectivity; requires control-r® module

Brand: Rinnai


Product Dimensions: 9"W x 9"H


Color: Gray


Wattage: 19000 watts


Voltage: 120 Volts


Brand: ‎Rinnai


Product Dimensions: ‎9"W x 9"H


Color: ‎Gray


Wattage: ‎19000 watts


Voltage: ‎120 Volts


Heat Output: ‎199000 British Thermal Units


Manufacturer: ‎Rinnai


Part Number: ‎RSC199iN


Item Weight: ‎78.8 pounds


Item model number: ‎RSC199iN


Item Package Quantity: ‎1


Included Components: ‎Water Heater, Bracket, Valves


Batteries Required?: ‎No


Date First Available: April 19, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 18 – May 19

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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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Worth the investment
Color: Gray
To tank or not to tank, that was my dilemma and I decided tankless. The key for me was price shopping certified Rinnai installers and I couldn’t be more satisfied. Installation was a half of day in an obstacle free environment. My Rinnai unit was the RCSiN 199,000 btu unit with recirculating capabilities and is a true game changer in my four bedroom home. Hot water on demand with very little waste water has proven to save me time, money and I can now use my jetted tub without waiting. My installer recommended that I contact the gas company for a “increased volume” gas regulator found on the outside of my house free of charge. The gas company came out within two weeks and it’s now a done deal. The Rinnai unit is very good looking and super quiet during operation. It’s been roughly 3 months and I highly recommend Rinnai for customer service, quality, features and ease of installation. Very satisfied thus far. ... show more
Reviewed in the United States on June 6, 2023 by marie p hughes marie p hughes

  • Great tankless water heater
Color: Gray
Terrific tankless water heater. I am very pleased this this purchase. I had a great installer who was incredibly helpful and took time to do things right.
Reviewed in the United States on January 13, 2024 by William White

  • Game changer
Color: Gray
We've had our unit installed for one month now. Oddly enough our first installation estimate was $5,000. Our second estimate was $1000. Tough choice lol. We absolutely love it! The recirc system is pretty cool. Instead of turning the shower to full hot and waiting for a minute, We now wait about 5 seconds. We also like that it's quiet and smaller. When we first got it up and running I ran the shower, garden tub, kitchen faucet, and both master bathroom sink faucets simultaneously and our tankless hot water heater seemed to have no problem whatsoever meeting the demand. It's too early to learn if we'll get a sizeable return of investment on natural gas monthly utility bills. For the cost of the unit on Amazon (About $2,000), installation cost ($1,000), and credits we'll receive ($800)...this is a no brainer. ... show more
Reviewed in the United States on December 21, 2023 by Eric

  • Great price here
Color: Gray
This works perfect. Make sure you get multiple instalation quotes. I had quotes as low as $2,700 up to $4,700. I wouldn't install it yourself unless you have experience working with gas. It takes a minute to get the cold water out of the pipes, but once it's out, the water stays hot as long as you want. ... show more
Reviewed in the United States on January 25, 2024 by Austin H

  • For those sitting on the fence - tank vs tankless water heater
Color: Gray
Our water tank heater started died and started leaking and I did quite a bit of research and read reviews and lot of articles about pros and cons of tankless water heater. We replaced our 70 gallon tank water heater with this Rinnai model and its performance is amazing - better than the tank water heater. I will compare the gas bill and post an update on gas savings in few months, but so far so good. The product was shipped with in 3 days. Came nicely packed. It is made in Japan. I hired a local contractor to install it. It went very smooth. The venting part in the instructions is quite confusing as there are many options presented. About the mail-in-rebate part, although it says our local gas company (Washington Gas) will provide a $400 mail in rebate, but it is not straightforward. If you want to get that rebate, then you will have to get it installed through the companies that are approved and listed on Washington Gas website. I tried to call a few companies, however, most of them are not aware of this mail in rebate. There was one who said that I will get the rebate, but the cost of installation quoted was so high and I had to get the water heater from that company. If you are in VA and have Washington Gas, it may not work out. Overall, I am happy with this purchase and would definitely recommend tankless water heater over big tanks. It will save space and hopefully save gas in long run. Given that there is $600 tax rebate, the cost of tankless water heater is almost same as that of a good tank water heater. Bottom line, if you are sitting on the fence and confused after reading reviews, articles and blogs about pros and cons, don’t waste your time and get a tankless water heater. Rinnai seems like a great choice and this particular model is performing well in a 3.5 bathrooms house with other dishwasher, washer etc. ... show more
Reviewed in the United States on August 25, 2023 by Gen-rev Gen-rev

  • Nice Water Heater
Color: Gray
This water heater has exceeded all my expectations. We have 4 bathrooms, and I was concerned about this water heater's ability to replace our two 50 gallon units we had in our house. Our handy man save us by coming to the rescue when one of our tanks failed and started leaking. He actually was the one that convinced me to go tankless, and help me pick this unit. I should have stopped their with him. After he installed the unit (it was not installed correctly), and did not function as documented. I went out to the Rinnai website, found one of their locally approved installers, and they came out and did a fantastic job installing and programming my new Rinnai tankless water heater. It took about a week to have this system learn our household hot water demands, but once it figured it out, we have hot water on demand throughout our house. One word of caution, if you have small children, the water comes on hot almost instantly. The warm-up warning period is non-existent with tankless heaters, so you will need to be careful if you have very small children. Other than that word of caution, I highly recommend this unit. ... show more
Reviewed in the United States on July 3, 2023 by Sam

  • Very nice hot water heater
Color: Gray
Only thing to keep in mind that even 11gpm is less than a wide open 3/4” line supplies.
Reviewed in the United States on October 11, 2023 by michael starzyk

  • Constant hot water
Color: Gray
Had to replace my 22 year old tankless hot water heaters so I purchased theses because I wanted a recirculating system so I wouldn't have to wait for the hot water to reach the faucets and waste all that water. These have a 7 day learning cycle to learn your hot water usage times so it turns on the pump to make sure you have hot water almost instantaneously. The only downside of this is the pump is a little loud and we can hear it thru the first floor boards. I had to have a plumber install them because the pipe routings and venting were way different than my previous tankless hot water heaters. ... show more
Reviewed in the United States on June 15, 2023 by David E.

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