---
product_id: 73516429
title: "Rinnai RU199iN Condensing Tankless Hot Water Heater, 11 GPM, Natural Gas, Indoor Installation"
brand: "rinnai"
price: "€ 5885.23"
currency: EUR
in_stock: true
category: "Rinnai"
url: https://www.desertcart.hr/products/73516429-rinnai-ru199in-condensing-tankless-hot-water-heater-11-gpm-natural
store_origin: HR
region: Croatia
---

# Energy Star certified efficiency Wi-Fi monitoring ready 11 GPM powerful flow Rinnai RU199iN Condensing Tankless Hot Water Heater, 11 GPM, Natural Gas, Indoor Installation

**Brand:** rinnai
**Price:** € 5885.23
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade to endless hot water with smart efficiency — because your home deserves the best!

## Quick Answers

- **What is this?** Rinnai RU199iN Condensing Tankless Hot Water Heater, 11 GPM, Natural Gas, Indoor Installation by rinnai
- **How much does it cost?** € 5885.23 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/73516429-rinnai-ru199in-condensing-tankless-hot-water-heater-11-gpm-natural)

## Best For

- rinnai enthusiasts

## Why This Product

- Trusted rinnai brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Industry-leading 15-year heat exchanger warranty ensures reliability and peace of mind for years to come.
- • **Space-Saving Design:** Compact wall-mounted unit fits seamlessly into your home, freeing up valuable space without sacrificing performance.
- • **Endless Hot Water Flow:** Never run out with a robust 11 gallons per minute capacity powering up to 7 appliances simultaneously.
- • **Smart Recirculation Tech:** Circ-Logic pairs with external pumps to deliver hot water on demand, slashing wait times and water waste.
- • **Energy Efficient & Eco-Friendly:** ENERGY STAR certified with a 0.105 Uniform Energy Factor, cutting energy bills while reducing your carbon footprint.

## Overview

The Rinnai RU199iN is a high-efficiency, natural gas-powered tankless water heater delivering up to 11 gallons per minute of continuous hot water. Featuring advanced Circ-Logic recirculation technology, it reduces wait times and water waste. Its compact, wall-mounted design saves space while ENERGY STAR certification ensures energy savings. Backed by a 15-year heat exchanger warranty and optional Wi-Fi monitoring, it’s engineered for durability and modern convenience.

## Description

The Rinnai Super High-Efficiency Plus Tankless Water Heater is the ultimate solution for energy-conscious homeowners seeking a smart, compact, and efficient water heating system. This tankless hot water heater offers advanced features and a durable design that provides an endless supply of hot water, making it perfect for households of all sizes. Enjoy unlimited hot water flow throughout your home, as well as a compact and space-saving design that conserves energy by heating water only when necessary, providing optimal energy efficiency. With a high-performance 11 GPM hot water flow rate, this tankless gas water heater delivers powerful and constant water pressure for a satisfying and uninterrupted stream. Say goodbye to low water pressure and enjoy a powerful hot water experience. Equipped with Circ-Logic technology, this on demand water heater enables recirculation patterns that coincide with your typical habits. Pair it with an external pump to reduce wait time for hot water via scheduled or on-demand recirculation. Rest assured with our Super High-Efficiency Plus Tankless Water Heater, backed by a guaranteed warranty. Enjoy a 15-year residential warranty for the heat exchanger, 5-year warranty for labor, and 1-year warranty for parts. For added convenience, Wi-Fi monitoring is available with the Controlr module (not included), allowing you to monitor and control your water heater from anywhere. Rinnai's super high-efficiency plus condensing tankless water heater models, featuring SENSEI technology, offer the most advanced technology in water heating. Unlike traditional tank heaters that accumulate rusty sediments, our compact water heater elements have a longer lifespan as water runs continuously through the pipes.

## Features

- Endless Hot Water: Our tankless hot water heaters offer unlimited whole-home hot water flow and come equipped with Circ-Logic for pairing with an external pump to reduce wait time for hot water via scheduled or on-demand recirculation
- Energy and Space Efficient: The tankless design of this small hot water heater saves on space and conserves energy as it heats only when necessary
- Optimal Water Pressure: With a hot water flow rate of up to 11 GPM, this tankless water heater provides a powerful, constant stream that can accommodate up to 7 appliances at once
- Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to locate a qualified technician in your area to install your water heater; We do not recommend installing a water heater without a technician
- Guaranteed to Last: 15-, 5-, and 1-year residential for heat exchanger, labor, and parts, respectively; Wifi monitoring available with Controlr module (not included)
- ENERGY STAR qualified with Uniform Energy Factor of 0.105

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07CW426QZ |
| Best Sellers Rank | #634,988 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #653 in Water Heaters |
| Brand Name | Rinnai |
| Capacity | 11 gallons |
| Color | Silver/Grey |
| Customer Reviews | 4.4 4.4 out of 5 stars (388) |
| Efficiency | Low |
| Flow Rate | 11 gpm |
| Global Trade Identification Number | 00766156009532 |
| Included Components | Water Heater |
| Item Depth | 11.45 in / (290 mm) |
| Item Dimensions W x H | 9"W x 9"H |
| Item Type Name | Water Heaters |
| Item Weight | 74.1 pounds |
| Manufacturer | Rinnai |
| Manufacturer Part Number | RU199iN |
| Manufacturer Warranty Description | Residential Factory Warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts) |
| Material Type | Metal |
| Maximum Pressure | 60 psi |
| Model Number | RU199iN |
| Mount Type | Wall |
| Power Source | Gas Powered |
| Special Features | High-efficiency, ENERGY STAR certified, Circ-Logic technology for recirculation |
| Style Name | Natural Gas, Indoor Installation |
| UPC | 766156009532 |
| Unit Count | 35.27 Ounce |
| Voltage | 120 volts |
| Wattage | 57942.2 watts |

## Product Details

- **Brand:** Rinnai
- **Capacity:** 11 gallons
- **Power Source:** Gas Powered
- **Product Dimensions:** 9"W x 9"H
- **Special Feature:** High-efficiency, ENERGY STAR certified, Circ-Logic technology for recirculation

## Images

![Rinnai RU199iN Condensing Tankless Hot Water Heater, 11 GPM, Natural Gas, Indoor Installation - Image 1](https://m.media-amazon.com/images/I/61uJabmAAUL.jpg)
![Rinnai RU199iN Condensing Tankless Hot Water Heater, 11 GPM, Natural Gas, Indoor Installation - Image 2](https://m.media-amazon.com/images/I/712bkI7cvxL.jpg)
![Rinnai RU199iN Condensing Tankless Hot Water Heater, 11 GPM, Natural Gas, Indoor Installation - Image 3](https://m.media-amazon.com/images/I/71GhP2mLeSL.jpg)
![Rinnai RU199iN Condensing Tankless Hot Water Heater, 11 GPM, Natural Gas, Indoor Installation - Image 4](https://m.media-amazon.com/images/I/71nILu4NlNL.jpg)
![Rinnai RU199iN Condensing Tankless Hot Water Heater, 11 GPM, Natural Gas, Indoor Installation - Image 5](https://m.media-amazon.com/images/I/71DteCsyXZL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Is this unit supposed to have a tiny drip? We have this installed in our garage and there is a small nozzle that drips when the unit is being used.**
A: Yes, this unit is a condensing water heater and the drip is called condensate and should be safely disposed of. It was explained to me like this- the chemical reactions in burning natural gas produce some harmful chemical byproducts and water. In less efficient devices, the hot exhaust boils the water into vapor and the byproducts and water vapor blow out the exhaust to the outside. However, this product is very efficient and extracts so much heat from the burning that the exhaust isn't hot enough to fully vaporize the water which condenses in the device (along with some of the chemical byproducts) and drips from the device's condensate drain. This condensate (containing some of the chemical byproducts) is mildly acidic and should be disposed of safely as it can slowly eat away at concrete and other things over long periods.

**Q: Can you use a fresh air intake or is it only indoor air intake?**
A: You can use both, the units come with a vent plastic grate for indoor air venting, however, outdoor fresh air intake is recommended when possible.

**Q: which brand is the most quiet?**
A: The RU199in, from my experience, has been the quietest 199,000 BTU tankless heater I have heard, but I certainly have not heard all of them. 

Most review sites do cite how quiet the unit is. You can probably YouTube this question and hear it running in some reviews.

**Q: What recirculation pump will work with this heater?**
A: rinnai recommends the GTK03 Grundfos kit for this unit

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-07-23*