--- product_id: 636491017 title: "Ranein Natural Gas Tankless Water Heater, Max 8.5 GPM, 190,000 BTU Indoor Instant Hot Water Heater RH19K-NG-FU01 for Single Family Residence" brand: "ranein" price: "$2097.13" currency: USD in_stock: true reviews_count: 6 url: https://www.desertcart.us/products/636491017-ranein-natural-gas-tankless-water-heater-max-8-5-gpm store_origin: US region: United States of America --- # Max 7.4 GPM flow rate Low noise, smart blower control 190,000 BTU high heat output Ranein Natural Gas Tankless Water Heater, Max 8.5 GPM, 190,000 BTU Indoor Instant Hot Water Heater RH19K-NG-FU01 for Single Family Residence **Brand:** ranein **Price:** $2097.13 **Availability:** ✅ In Stock ## Summary > 🔥 Elevate your home comfort with endless hot water on demand! ## Quick Answers - **What is this?** Ranein Natural Gas Tankless Water Heater, Max 8.5 GPM, 190,000 BTU Indoor Instant Hot Water Heater RH19K-NG-FU01 for Single Family Residence by ranein - **How much does it cost?** $2097.13 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/636491017-ranein-natural-gas-tankless-water-heater-max-8-5-gpm) ## Best For - ranein enthusiasts ## Why This Product - Trusted ranein brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Family-Ready Capacity:** Supports 4-6 outlets simultaneously with 7.4 gallons per minute flow rate. - • **Compact Wall-Mount Design:** Sleek 24.25" x 15.08" footprint fits seamlessly in any indoor space. - • **Instant Hot Water, No Wait:** Say goodbye to cold showers with on-demand heating that never quits. - • **Powerful & Efficient Combustion:** Smart blower adjusts speed for full combustion and safer, quieter operation. - • **Hassle-Free Installation & Support:** Standard fittings and dedicated customer service make setup a breeze. ## Overview The Ranein Natural Gas Tankless Water Heater delivers instant hot water with a powerful 190,000 BTU output and a maximum flow rate of 7.4 gallons per minute. Its smart blower system ensures efficient, safe combustion with low noise, while the compact wall-mounted design saves space. Ideal for households with multiple outlets, it offers reliable, energy-efficient heating backed by a 2-year warranty and easy installation. ## Description Ranein Natural Gas Tankless Water Heater, Indoor Max 7.4 GPM, 190,000 BTU Instant Hot Water Heater ## Features - 【Fans Placed Underneath】It will be more secure in terms of safety, and no smoke backflow will occur. The blower has large power and can automatically adjust the rotating speed according to the change of external wind pressure and the change of water temperature to provide sufficient oxygen for gas combustion, ensuring full combustion and safer use. Low noise and longer service life - 【No Waiting Required】Unlike traditional tank water heaters, tankless water heaters eliminate the need for a 30-minute preheating wait time, allowing you to have unlimited hot water on demand - 【Easy to Assemble and Use】Uses standard 3/4" NPT water inlet fittings and air inlets for quick installation. Its compact size of 24.25"L x 15.08" W x 8.07"H takes up almost no space. If you have any questions about installation and operation, please do not hesitate to contact us and we will serve you wholeheartedly - 【Wide Application】190,000 BTU high heating capacity and maximum 7.4 GPM. It is suitable for 4-6 outlet points, which can satisfy whole family - 【Note】We provide a 2-year warranty for the water heater. If you encounter any issues, please contact us. In cold weather, if the water heater is not used for a long time, the pressure relief valve needs to be opened to drain the remaining water in the water heater. Not recommended for areas over 2,000 feet. ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | Ranein | | Product Dimensions | 15.08"W x 24.25"H | | Color | Gray | | Voltage | 120 Volts (AC) | | Maximum Temperature | 149 Degrees Fahrenheit | | Efficiency | energy-efficient | | Style | Natural Gas | | Mounting Type | Wall | | Is Electric | No | | Manufacturer | RANEIN | | Item Weight | 56 pounds | | Country of Origin | China | | Item model number | RH19K-NG | | Included Components | Tankless Water Heater x1, Manual x1 | | Batteries Included? | No | | Batteries Required? | No | ## Product Details - **Brand:** Ranein - **Product Dimensions:** 15.08"W x 24.25"H - **Color:** Gray - **Voltage:** 120 Volts (AC) - **Maximum Temperature:** 149 Degrees Fahrenheit ## Images ![Ranein Natural Gas Tankless Water Heater, Max 8.5 GPM, 190,000 BTU Indoor Instant Hot Water Heater RH19K-NG-FU01 for Single Family Residence - Image 1](https://m.media-amazon.com/images/I/51GaaiCNAeL.jpg) ## Available Options This product comes in different **Material Type, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great for the $. Well worth the expense. *by M***Y on July 10, 2025* Surprised. It works great in our 2-person home. It is reliable and isn't overly complicated. I had purchased a $1000 unit from Lowe's and it was so complicated, if you sneezed near it during installation, it would throw an error code. This one is less than half that price and is plug-and-play. It effortlessly supplies hot water to laundry/dishwasher and to someone in the shower simultaneously without issue. I own rentals and have purchased 4 of them now and will buy a 5th. ### ⭐⭐⭐⭐⭐ I love this water heater!! *by J***S on August 23, 2024* The media could not be loaded. 2nd edit!—— it’s been almost a year and want to say through the winter I was almost certain it was going to be broken with the water frozen even inside the house, we had issues with the gas company (propane) blot being able to come fill so we went without heat off and on all winter, we ended up just filling a 100lb cylinder every 2 days 😳 it was expensive. But during the times we didn’t have heat and inside froze my fridge broke, (water and ice don’t work) all shut offs busted when we got heat and water thawed. But the shut offs to this didn’t! And it didn’t break! We’re still going strong and still working properly 🙌🏻Editing to update, it’s now been about 3 months and I love this so much! Bills went down about 100$ and it’s just perfect!I got this about 3/4 weeks ago it’s been installed 3 weeks or so. My dad installed and I was helping. It was easy to install and hook up. The packaging comes with everything basically, you need to hook up. I’m pretty sure we had to buy the shut offs. But either way it’s cheap and works great. I have 5 kids almost 6-11 years old plus 3 adults. So far no problems with it heating and keeping temperatures. It’s quiet and definitely space saving!!! So now I can use the bathroom closet instead of having a big tank taking up all the space. This is the propane not natural gas. Sorry for the long video review but wanted to let people to know some details cause I was hesitant my own self after reading some of the reviews. Questions for will it work or not work cause I was told by Lowe’s a few years ago I need a 9-11gpm for the people I have in household. It’s actually by faucets and the rating they have and how many you have and want running at the same time. So I bought all my fancy faucets (waterfall, rain shower head) etc from Amazon as well and they do take a good bit of water output so I just checked the output and f it, let’s give this a try. My main concerns was the reviews like “I got propane but it won’t work it’s only for natural gas” or “it leaks upon installation or after a few days” I’ve had it for almost 3 weeks and it’s been good to us no leaks nothing. I’d definitely recommend this tankless heater ### ⭐⭐⭐⭐⭐ Great on demand heater *by R***T on July 6, 2025* The media could not be loaded. Great value. Works well and produces enough hot water for a bathroom and a kitchen sink. Easy to set up an operate. Water is hot with good flow.Used it for our glamping setup --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/636491017-ranein-natural-gas-tankless-water-heater-max-8-5-gpm](https://www.desertcart.us/products/636491017-ranein-natural-gas-tankless-water-heater-max-8-5-gpm) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-12*