---
product_id: 13282432
title: "Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe"
brand: "rinnai"
price: "€ 674.24"
currency: EUR
in_stock: true
url: https://www.desertcart.pt/products/13282432-rinnai-ruc98in-ultra-series-indoor-natural-gas-tankless-water-heater
store_origin: PT
region: Portugal
---

# Up to 0.96 Energy Factor efficiency Ultra low NOx emissions 199,000 BTU max power Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe

**Brand:** rinnai
**Price:** € 674.24
**Availability:** ✅ In Stock

## Summary

> 🔥 Elevate your home’s hot water game with unmatched power and eco-friendly tech!

## Quick Answers

- **What is this?** Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe by rinnai
- **How much does it cost?** € 674.24 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/13282432-rinnai-ruc98in-ultra-series-indoor-natural-gas-tankless-water-heater)

## 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

- • **Clean & Green:** Ultra low NOx emissions meet strict California and Texas environmental standards.
- • **Space-Savvy Design:** Compact indoor installation with twin pipe venting fits seamlessly into modern homes.
- • **Eco-Smart Efficiency:** Boasts an impressive 0.96 Energy Factor, maximizing energy savings and reducing utility bills.
- • **Peace of Mind Warranty:** Industry-leading 12-year heat exchanger warranty ensures long-term reliability.
- • **Powerhouse Performance:** Delivers up to 199,000 BTU for instant, reliable hot water on demand.

## Overview

The Rinnai RUC98iN Ultra Series is a high-efficiency indoor natural gas tankless water heater delivering up to 199,000 BTU with 0.96 Energy Factor. Featuring ultra low NOx emissions and a compact twin pipe design, it offers powerful, eco-conscious performance backed by a 12-year heat exchanger warranty—perfect for energy-savvy professionals seeking reliable, space-saving solutions.

## Description

Rinnai takes tankless water heating one step further with condensing technology that delivers more efficiency than ever before. Enjoy all the same tankless benefits you’ve come to expect from Rinnai, plus even greater energy savings. Features: 95% Thermal Efficiency Natural gas or propane Indoor Installation Only 98° F to 140° F Residential Temperature Range 98° F to 185° F Commercial Temperature Range Commercial Controller Must be Purchased Separately Gas Rate Input BTU's: 15,200 - 199,000 Electronic Ignition Meets California and Texas NOx Emissions Standards Compatible with Full Line of Rinnai Digital Controllers 12-Year Warranty on Heat Exchanger, 5 Year Parts, 1 Year Labor for Residential Installations Specifications: Width: 18.5" Height: 26" Depth: 10" Weight: 61.7 lbs Gas Connection: 3/4" Water Connection: 3/4"

## Features

- INDOOR installation only. Fuel Type: NATURAL GAS.
- Concentric or PVC venting option
- Up to 0.96 Energy Factor/Up to 0.92 Uniform Energy Factor
- The space-saving design allows Indoor Installation type
- Ultra low NOx emissions
- 199,000 max BTU

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Rinnai |
| Product Dimensions | 18.5"W x 26"H |
| Special Feature | MC-91-2US controller included |
| Color | Steel |
| Voltage | 120 Volts |
| Maximum Flow Rate | 9.8 Gallons Per Minute |
| Efficiency | High |
| Mounting Type | Wall |
| Is Electric | No |
| Manufacturer | Rinnai |
| Item Depth | 10 inches |
| UPC | 766156008160 |
| Global Trade Identification Number | 00766156008160 |
| Part Number | RUC98IN |
| Item Weight | 82 pounds |
| Item model number | RUC98iN |
| Is Discontinued By Manufacturer | No |
| Size | Twin Pipe/Ultra |
| Item Package Quantity | 1 |
| Water Consumption | 9.8 Gallons |
| Certification | Energy Star |
| Special Features | MC-91-2US controller included |
| Usage | Indoor use only |
| Included Components | water heater |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Residential: Limited 12-year on heat exchanger, 5-year on parts, 1-year on labor (5-year optional on labor)<br>Commercial: Limited 5-year on heat exchanger, 5-year on parts, 1-year on labor (2-year optional on labor) |

## Product Details

- **Brand:** Rinnai
- **Product Dimensions:** 18.5"W x 26"H
- **Special Feature:** MC-91-2US controller included
- **Color:** Steel
- **Voltage:** 120 Volts

## Images

![Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe - Image 1](https://m.media-amazon.com/images/I/91xS60RN+DL.jpg)
![Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe - Image 2](https://m.media-amazon.com/images/I/81mVtAHJBxL.jpg)
![Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe - Image 3](https://m.media-amazon.com/images/I/81Apw1-u63L.jpg)
![Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe - Image 4](https://m.media-amazon.com/images/I/61brKH2KDbL.jpg)
![Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe - Image 5](https://m.media-amazon.com/images/I/71K+lKBQoHL.jpg)

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**Shop now:** [https://www.desertcart.pt/products/13282432-rinnai-ruc98in-ultra-series-indoor-natural-gas-tankless-water-heater](https://www.desertcart.pt/products/13282432-rinnai-ruc98in-ultra-series-indoor-natural-gas-tankless-water-heater)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-17*