Lowest Prices Online | Free Shipping + No Sales Tax (exclusions may apply) | Call or Text Us For Assistance: +1 (800) 484-0224

Summer Sales Event!

SUMMER5
Rinnai  |  SKU: RX199IN

Rinnai RX Series 11.1 GPM Indoor Tankless Water Heater – NG, SmartSense Technology

$2,433.00
+
📦 FREE Shipping
Authorized Rinnai Dealer
Manufacturer Warranty Included
  • Authorized Online Dealer
  • 🚚Free Shipping (exclusions may apply)
  • 💲We Beat The Lowest Price
  • 📦Fast 4–7 Day Delivery
  • 🛡️Manufacturer Warranty Included
  • 📞 Questions? Call Our Experts: +1 (800) 484-0224
Use code: SUMMER5 (5% OFF)


Price Match Guarantee

We work very hard to ensure that we offer the absolute best prices online.  If you find another online store that offers a lower price than us, let us know and we beat the price hands down. We want you to feel confident that you are getting the absolute best price for the product you are ordering. 

Our 100% Price Match Guarantee has the following restrictions: 

Promotions such as rebates and buy one, get one free offers are not eligible 

The website can not be a discounter or auction website (ie; eBay, etc..) 

The competitor must be an Authorized Retailer of the item you have purchased 

The Price Match Guarantee includes will be calculated based on item price, sales tax, shipping charges 

Price Matches Do Not Apply For Exchange Orders, or replacements 

Please Note: Some Exclusions May Apply

Delivery and Shipping

Your order processing time is 1 to 2 days. Please note that the cut-off time for order placement is 6 p.m. Orders received after this time will be processed on the following business day.

Your order will arrive within 4 to 7 days on average (free shipping over $200). Shipping for orders under $200 incurs a flat fee of $15. We currently offer shipping only within the continental United States (island deliveries may incur additional costs); international shipping is not available.

Mostly all of our orders are shipped via one of our third-party freight carriers (18-wheeler). If your order has an item that is shipped on a freight carrier, you will be contacted to schedule a curbside delivery time. Please make sure to put the correct phone number at checkout.

Upon placing your order, you will receive a confirmation e-mail. This message will confirm your order has been received by our system, and your credit card was approved for purchase. We will not charge your card until the item has shipped unless it's back ordered and we need to hold an item for you. 

As soon as your order is received on our end, we process it!

Authorized Online Dealer
Free Shipping + No Sales Tax (exclusions may apply)
We Beat The Lowest Price
Fast 4-7 Day Delivery
Manufacturer Warranty Included
Questions? Call Our Experts: +1 (800) 484-0224

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Description

Upgrade your home’s hot water system with the Rinnai RX Series 11.1 GPM Indoor Tankless Water Heater. Designed for modern homes, this energy-efficient unit delivers a continuous supply of hot water on demand, supporting 3–6 fixtures simultaneously. With SmartSense™ adaptive gas valve technology, it automatically adjusts between Natural Gas and Propane without requiring a conversion kit.

Equipped with Smart-Connect™ Bluetooth, you can monitor and control your water heater directly from your smartphone or tablet for ultimate convenience. The Quick-Flush™ system simplifies maintenance, while enhanced heat exchangers and Turbo Fan™ technology ensure consistent hot water performance and long-lasting reliability.

This unit is mobile home certified, ENERGY STAR® rated, and comes with a limited 15-year heat exchanger warranty, making it a dependable choice for homeowners who want efficiency, flexibility, and peace of mind.

Key Features:

  • SmartSense™ Adaptive Gas Valve Technology: Automatically adjusts to NG or LP – no conversion kit required.
  • Smart-Connect™ Bluetooth Control: Connects to your smartphone or tablet for convenient monitoring.
  • Quick-Flush™ Maintenance: Simplifies preventive maintenance and extends unit life.
  • Enhanced Heat Exchangers: Improved primary and secondary heat exchangers for maximum efficiency.
  • Turbo Fan™ Technology: Enhanced airflow ensures consistent hot water delivery.
  • Smart-Circ™ Capable: Compatible with optional pump or pump accessory kit for circulation.
  • Versatile Venting Options: 2"/4" or 3"/5" concentric vent system, PVC compatible.
  • Mobile Home Certified: Safe and reliable installation in mobile homes.
  • Optional Accessories: Versa-Vent™ vent cap for outdoor conversion, multiple remote controllers available.
  • Energy Efficient: UEF of 0.98, ENERGY STAR® certified, AHRI & CSA certified.
  • Durable & Reliable: 15-year limited warranty on heat exchanger, 5 years on parts, 1 year on labor.

What’s Included

  • SENSEI® RX Water Heater
  • Wall Mounting Bracket & Screws (4)
  • Gas Conversion Label (Propane)
  • Vent Screens & Screws (2 each)
  • Installation and Operation Manual

Specifications:

Feature Specification
Model Number RX199IN
Flow Rate 0.13 – 11.1 GPM
BTU Input 15,000 – 199,000 BTU (Min/Max)
Fuel Type Natural Gas (NG) – Field Convertible to LP
Indoor/Outdoor Indoor (Outdoor Conversion Optional)
Vent Type 2"/4", 3"/5" Concentric or PVC
Energy Factor (UEF) 0.98
Dimensions (H x W x D) 30.1" x 18.5" x 11.4"
Weight 55 lbs
Number of Fixtures 3 – 6
Certifications AHRI, CSA, ENERGY STAR®
Warranty 15 Years (Heat Exchanger), 5 Years (Parts), 1 Year (Labor)
Required for Completion Isolation Valve MIVK-T-LW (Sold Separately)
Optional Accessories Versa-Vent™ Vent Cap (RXOVC), MC-601, MC-195T-US, RWM200 Controllers

Care & Maintenance Instructions

  • Perform regular Quick-Flush™ maintenance to remove sediment and maintain optimal performance.
  • Inspect venting connections periodically to ensure proper airflow.
  • Check the Smart-Connect™ app to monitor unit status and notifications.
  • Use only manufacturer-recommended accessories and parts for any upgrades or replacements.
  • Keep the area around the heater free of debris and combustible materials.