Rinnai RX Series 11.1 GPM Indoor Tankless Water Heater – NG, SmartSense Technology
- 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
Rinnai RX Series 11.1 GPM Indoor Tankless Water Heater – NG, SmartSense Technology is backordered and will ship as soon as it is back in stock.
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Price Match Guarantee
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
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
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Description
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.
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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.



