Top 10 Water Heater Natural Gas of 2022

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Buying a Water Heater Natural Gas seems like an easy job, but not everytime. There are hundreds of Water Heater Natural Gas available on the market from various producers, which is enough to confuse you. They are so similar in terms of performance, quality, longevity, and overall user experience that choosing a final buying decision may be tough. All you need at that point is a comprehensive buying guide to help you find the ideal Water Heater Natural Gas for your needs.

In this article, we will go over a few important points to consider about before buying a Water Heater Natural Gas. You can call it a proper review guideline for you which will cover pros and cons of your desired product including its sustainability, affordability, functions, and also practical benefits. There will also be a solid comparison of a few related products. As a result, you’ll be able to quickly select the best option for your needs. Let’s take a look at what’s going on inside.

Best Water Heater Natural Gas : Top 10 Picks

Last update on 2025-07-04 at 02:37 / Affiliate links / Images from Amazon Product Advertising API


10 Best Water Heater Natural Gas Reviews According To Experts

We tried to find the top ten Water Heater Natural Gas from thousands of different products in this section. This list will make you feel easy to get your desired Water Heater Natural Gas within a few minutes. We emphasized their usefulness, performance, durability, outlook, affordability, and previous user experiences. We are confident that this list of the top 10 Water Heater Natural Gas will help you find the one that best fits your needs.

Bestseller No. 1
Ranein Natural Gas Tankless Water Heater, Indoor Max 3.6 GPM, 80,000 BTU Instant Hot Water Heater
  • Performance: The on-demand tankless water heater boasts a heating capacity of 80,000 BTU and a hot water flow rate of 3.6 gallons per minute (GPM). It can provide continuous hot water for 2-3 water supply points, making it sufficient to meet the hot water needs of a household's bathroom, kitchen, and bar area.
  • 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.
  • Provides 4 modes: Dish mode(100℉), Fruit mode(95℉), Elderly mode(104℉) and Infant mode(107℉). More convenient for you to use.
  • Save Money: The kit already includes the exhaust pipe, so you don't need to spend extra money on purchasing it separately. With an oxygen-free copper water tank, it reduces heat loss and lowers energy consumption. Applied with standard 1/2" NPT water fitting and gas inlet.
  • Recommendation: We strongly advise that all installations of the device adhere to local building and plumbing regulations at the installation location, and should be carried out by licensed professionals.(Not recommended for areas over 2,000 feet)
Bestseller No. 2
Tankless Water Heater Natural Gas,4.74GPM 18L Indoor,Instant Hot Gas Water Heater,Constant Natural Water Heater with Fahrenheit Digital Display,Multi-Protection (Black)
  • 【Tankless Water Heater】- Natural Gas water heater tankless Steady Steady Temperature Control with more safety protection such as flame failure device,anti-freezing protection,over heating protection,Just need 3.6PSI of water pressure,4.74gallons of hot water can be output per minute.The maximum temperature raise is 167°F,Applicable only Natural Gas(LNG)
  • 【Efficient & Energey Saving】-The 4.74 GPM Instant Natural Gas Water Heater ,Maximum power output 68000btu/hour,on-demand hot water for 2-3 points simultaneous water supply for bathroom,kitchen hot water demand,Natural Gas Water Heater exchanger and main burner are desinged with advanced combustion technology to decrease gas consumption and burning noise.
  • 【Quality Material】-This of ours Water Heater Crafted from stainless steel, our Propane water heater exhibits high temperature resistance and corrosion resistance. It also features a built-in oxygen-free copper water tank, reduce heat loss ensuring a prolonged service life.with with LED smartdigital display effortlessly adjust the temperature between 86°F-167°F according to your preferences.
  • 【Easy Assemble and Use】-Applied with standard 1/2" NPT water fitting and gas inlet, comes with 2.5" horizontal vent pipe for quick installation.Note: For normal operation, this product must be installed with proper ventilation and a smoke exhaust pipe.
  • 【Widely Application 】-Save over 50% of available space compared to tank water heater.for both bathroom and kitchen hot water demand. great for home,small cabins and remote apartments indoor installation. without the need to install an expansion tank,Note: In cold weather, if the water heater is not used for a long time, it is necessary to open the pressure relief valve to drain the residual water in the water heater.
SaleBestseller No. 3
Natural Gas Tankless Water Heater,4.21GPM 16L Indoor,Instant Hot Gas water heater,Constant Natural Water Heater with Fahrenheit Digital Display,Multi-Protection
  • 【Tankless Water Heater】– This natural gas tankless water heater features steady temperature control and multiple safety protections, including a flame failure device, anti-freeze protection, and overheating protection. It operates with just 3.6 PSI of water pressure, delivering up to 4.21 gallons of hot water per minute. With a maximum temperature rise of 149°F, this unit is designed exclusively for use with Natural Gas(LNG).
  • 【Efficient & Energy-Saving】– With a high-performance output of 68,000 BTU per hour, this 4.21 GPM instant natural gas water heater provides on-demand hot water for 2–3 points of use simultaneously, making it ideal for bathrooms and kitchens. The advanced combustion technology reduces operational noise for a more efficient and quieter experience.
  • 【Premium Quality & Durability】– Crafted with a stainless steel body for superior temperature and corrosion resistance, this natural gas water heater is built to last. The oxygen-free copper water tank ensures minimal heat loss and an extended service life. The LED smart digital display allows for easy temperature adjustments between 95°F and 149°F, giving you precise control over your hot water needs.
  • 【Easy Installation & Use】– This tankless propane water heater is designed for quick and hassle-free setup. It comes equipped with standard 1/2" NPT water fittings,air inlet pipe, inlet and outlet water pipe, and a 2.5" horizontal vent pipe for easy installation.For safe operation, ensure proper ventilation and install a smoke exhaust pipe as required.
  • 【Versatile & Space-Saving】– This compact tankless water heater saves over 50% of space compared to traditional tank models, making it a perfect choice for homes, small cabins, and remote apartments. It efficiently meets both bathroom and kitchen hot water demands without the need for an expansion tank. Note: In cold weather, drain residual water by opening the pressure relief valve if the unit will not be used for an extended period.
Bestseller No. 4
FOGATTI Natural Gas Tankless Water Heater Indoor - Max 5.1 GPM 120,000 BTU, CSA Certified Compact Design On Demand Instant Hot Water Heater - Instagas Comfort 120S Series
  • Efficient Tankless Heating: The FOGATTI tankless water heater gas occupies only a third of the size of traditional heaters while delivering five times the performance. With 120,000 BTU and 5.1 GPM flow rate, it provides instant, endless hot water, supporting 2-4 outlets at once, making it perfect for whole house with medium family
  • Excellent Value: The FOGATTI tankless water heater provides excellent value with top performance at low energy costs. Its eco-efficient design helps reduce energy bills while saving space. Offering reliable hot water on demand, it ensures you get great value for the investment, combining efficiency, savings, and convenience
  • Precision Temperature Control: Featuring advanced water servo technology and temperature sensors, this gas tankless water heater precisely regulates water flow and gas intake, maintaining a temperature difference within ±1℉. Its four-stage combustion system ensures a consistent, comfortable experience, whether in cold winters or hot summers
  • Quick and Easy Installation: With its compact design 23.9 x 15.5 x 7.3 inches, indoor installation is simple and convenient. This tankless gas water heater is compatible with low water pressures ranging from 15-150 PSI, ensuring smooth operation even in areas with weaker water pressure. It easily connects to a standard 120V AC power source for effortless use
  • Trusted Quality and Support: Built with a high-efficiency copper heat exchanger and a 304 stainless steel burner, this water heater offers remarkable durability and performance. CSA certified and equipped with multiple safety features, it meets stringent safety standards for dependable operation
Bestseller No. 5
NEW Rinnai RX199iN Condensing Smart Sense Natural Gas or Propane Tankless Water Heater, Indoor or Outdoor Water Heater, Up to 11.1 GPM, 199,000 BTU
  • One Model, Anywhere: This Rinnai tankless water heater is installable indoors or outdoors thanks to our new Versa Vent and powered by either propane or natural gas thanks to a Smart Sense gas control system; RX-OVC vent cap required for outdoor install
  • Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: This condensing propane and natural gas tankless water heater from Rinnai is only the size of a small suitcase, but provides up to 11.1 GPM (7 fixtures at once)
  • Smart, Efficient Design: This water heater's modern design includes an easy-to-use interface, Quick Flush feature for simplified flushing, as well as a super-high energy efficiency factor of UEF .98; See Controlr module for WiFi control (not included)
  • Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to find a qualified technician to install your tankless water heater, and use the Rinnai Central App for help with setup, service & troubleshooting; We do not recommend installing a water heater without a technician
  • Find Your Rinnai: See our product guides, manuals, energy guide, warranty information, videos, and tables to find the right tankless water heater size for your home; Check our Ground Water Temperature Map to see if this heater is optimal for your region
Bestseller No. 6
Rinnai V53DeN Natural Gas Tankless Water Heater - 5.3 GPM, Outdoor Installation
  • Unlimited Hot Water For Your Family: Enjoy endless hot water with our Rinnai tankless hot water heater, providing a flow rate of 5.3 GPM to serve up to 4 appliances; Say goodbye to cold showers and hello to convenience with this efficient unit
  • Energy Efficiency At Its Best: This compact gas tankless water heater conserves energy by heating water only when needed, making it an earth-friendly choice for energy-conscious homeowners; Reduce utility bills and enjoy hot water as needed
  • Peace Of Mind With Long-Lasting Performance: The Rinnai tankless hot water heater offers a 10-year warranty on the heat exchanger, ensuring durability; Enjoy uninterrupted hot water flow without worrying about frequent repairs
  • Compact And Space-Saving Design: Our outdoor tankless hot water heater is designed for modern homes, ideal for families and new homeowners; Its small footprint allows easy installation in tight spaces without sacrificing performance
  • User-Friendly And Easy Installation: We recommend professional installation for the best results, ensuring safe operation of this on demand water heater; Visit our Rinnai PRO page to find a qualified technician near you
Bestseller No. 7
Tankless Water Heater Natural Gas,4.21GPM 16L Indoor,Instant Hot Gas Water Heater, with Fahrenheit Digital Display,Multi-Protection (Black)
  • 【Tankless Water Heater】- Natural Gas water heater tankless Steady Steady Temperature Control with more safety protection such as flame failure device,anti-freezing protection,over heating protection,Just need 3.6PSI of water pressure,4.21gallons of hot water can be output per minute.The maximum temperature raise is 167°F,Applicable only Natural Gas(LNG)
  • 【Efficient & Energey Saving】-The 4.21 GPM Instant Natural Gas Water Heater ,Maximum power output 68000btu/hour,on-demand hot water for 2-3 points simultaneous water supply for bathroom,kitchen hot water demand, Natural Gas Water Heater exchanger and main burner are desinged with advanced combustion technology to decrease gas consumption and burning noise.
  • 【Quality Material】-This of ours Water Heater Crafted from stainless steel, our Propane water heater exhibits high temperature resistance and corrosion resistance. It also features a built-in oxygen-free copper water tank, reduce heat loss ensuring a prolonged service life.with with LED smartdigital display effortlessly adjust the temperature between 86°F-167°F according to your preferences.
  • 【Easy Assemble and Use】-Applied with standard 1/2" NPT water fitting and gas inlet, comes with 2.5" horizontal vent pipe for quick installation.Note: For normal operation, this product must be installed with proper ventilation and a smoke exhaust pipe.
  • 【Widely Application 】-Save over 50% of available space compared to tank water heater.for both bathroom and kitchen hot water demand. great for home,small cabins and remote apartments indoor installation. without the need to install an expansion tank,Note: In cold weather, if the water heater is not used for a long time, it is necessary to open the pressure relief valve to drain the residual water in the water heater.
Bestseller No. 8
Rheem RTG-70DVLN-3 High Efficiency Non-Condensing Indoor Tankless Natural Gas Water Heater, 7.0 GPM
  • Continuous Hot Water & Comfort When Needed – Provides enough hot water for your entire house, even when using multiple applications such as a shower and dishwasher
  • Save on Energy Costs – High Efficient Water Heater only runs when needed
  • Save Water– Water Saving Setting saves up to 1,100 gallons of water per year
  • Hot-start programming keeps the water heater in a ready state, avoiding any cold-water bursts
  • Leak Protection – LeakGuard Leak Detection & Prevention protects your home from water damage that detects any internal leak, both large or small
SaleBestseller No. 9
Rheem RTG-70XLN-3 High Efficiency Non-Condensing Outdoor Tankless Natural Gas Water Heater, 7.0 GPM, Gray
  • High-efficiency tankless gas water heater delivers up to 7.0 GPM, perfect for 2–3 bathroom homes with multiple hot water needs like showers and laundry.
  • Powered by natural gas with 160,000 BTUs, this durable tankless unit ensures fast, reliable hot water—even during peak household demand.
  • Designed for outdoor installation, this high-efficiency tankless natural gas water heater features a durable metal cabinet and supports easy wall mounting by a qualified installer.
  • Hot-start programming prevents cold water bursts, making this tankless natural gas water heater ideal for back-to-back showers.
  • Rheem RTG tankless gas water heaters offer high-efficiency, space-saving designs with multiple models to fit any home size, fuel type, and hot water demand.
Bestseller No. 10
Natural Gas Tankless Water Heater,5.26GPM 20L Outdoor,Instant Hot Natural Gas Water Heater with Fahrenheit Digital Display,Multi-Protection
  • 【Tankless Water Heater】– This natural gas tankless water heater features steady temperature control and multiple safety protections, including a flame failure device, anti-freeze protection, and overheating protection. It operates with just 3.6 PSI of water pressure, delivering up to 5.26 gallons of hot water per minute. With a maximum temperature rise of 149°F, this unit is designed exclusively for use with natural gas (LNG).
  • 【Premium Quality & Durability】– Crafted with a stainless steel body for superior temperature and corrosion resistance, this natural gas water heater is built to last. The oxygen-free copper water tank ensures minimal heat loss and an extended service life. The LED smart digital display allows for easy temperature adjustments between 95°F and 149°F, giving you precise control over your hot water needs.
  • 【Efficient & Energy-Saving】– With a high-performance output of 120,000 BTU per hour, this 5.26 GPM instant natural gas water heater delivers on-demand hot water for 3–4 fixtures at the same time, making it an ideal choice for whole-house use. Advanced combustion technology helps reduce gas consumption and lowers operational noise, offering a more efficient and quieter experience for your home.
  • 【Fast & Convenient Outdoor Installation】– With a space-saving design measuring 22.8" x 14.4" x 5.9", this tankless water heater is built for quick and easy outdoor setup. It includes a remote control panel for simple indoor operation and runs smoothly with low water pressure from 3.16-150 PSI. Just plug it into a standard 120V AC outlet for a reliable and hassle-free power connection.
  • 【Accurate & Consistent Temperature Control】– Equipped with advanced water servo technology and built-in temperature sensors, this tankless natural gas water heater delivers precise regulation of water flow and gas input, keeping temperature fluctuations within ±1℉. The four-stage combustion system ensures steady, reliable performance year-round—whether you're facing freezing winters or scorching summers.

Last update on 2025-07-04 at 02:37 / Affiliate links / Images from Amazon Product Advertising API




Things To Consider When Buying Water Heater Natural Gas

It is impossible to ascertain everything about anything as a human being. It is impossible to be an expert in every field. In that case, going through a proper buying guide can save us from being fool after purchasing a Water Heater Natural Gas just because of not knowing properly earlier.

You do not have to be an expert on that specific product in order to purchase it. Just focus on a few key points that we’ll go over later. Taking these simple considerations into account may make your shopping experience more pleasant and straightforward. Let’s get started.

Understand what you require.

The very first thing to discover is your needs or requirements. If you are not properly informed of your demands, there is a big chance that you will purchase the incorrect things at the wrong time and waste a significant amount of money. So, first and foremost, we recommend that you carefully consider your requirements when searching for a Water Heater Natural Gas. Simply make a short list of your requirements. This simple task will lead you to simplifying your purchasing process. Then you will be able to know your prioroties which is the most important thing.

Budget vs Pricing

Before you decide to buy anything, one of the most important issue to think about is budget. Your desired product can be asked any amount of price by it’s seller and producer. That depends on different expences like raw material purchasing, manufacturing, transportation, operational costs and their brand value playes a huge role there. You need to be prepared to spent the higher amount of money if you demand for the higher quality in your product. Budget is so important for this cause. This is almost a universal truth and your Water Heater Natural Gas also fall into it.

There is a popular proverb in our society, “Cut your coat, according to your cloth”. First of all, you can find out those products on the internet which you actually want. Look carefully their features and prices. With your deep observation, make a proper comparison among them and select one that you need. Now make a question inward your mind that you are really financially capable enough to purchase that specific Water Heater Natural Gas or not? If the answer is yes, then go for it. You may think about the second best option if your answer is no.

Select the Best Brand

Because of our emotional attachments, we are frequently predisposed toward certain brands. This practice yields positive results at times and negative results at other times. However, there is no way to argue with the concept of relying on well-known brands. Because having enough cash in your pocket makes making decisions half as easy. But one thing remains, if you are not 100% sure that your brand of choice makes the best product that you are seeking for. So you have to be very carefull when you are choosing any product if it is the right product from right brand.

People are divided into two groups. One is fully reliant on a single brand, while the other seems unconcerned. All he requires is the appropriate goods for the price he is paying. May be we are not aware of the category that you belong to.However, there are a few pointers that may be useful to both of you when it comes to selecting the correct brand for the right product.


  • Make sure in this case that you are well-versed in the brand.

  • What people are saying about this brand.

  • What is the average rating for that brand’s specific product?

  • Contrast the features with those of competitors.

  • Does these features meet your necessities?


Analyze the Features Section.

Whether you buy it online or offline, the first thing you should check is while buying is the features of Water Heater Natural Gas. This is the best way to know about a product and get a clear concept. You will be able to understand, that product will match with your requirements or not.

The features section also helps us in swiftly identifying the differences with others. Then, using the features, you can compare it to similar products. If you do so, it will be much easier to reach to the final decision because you will be able to understand about the quality here.

Consider the benefits and drawbacks.

Every item has its own set of advantages and pitfalls. It is our job to thoroughly inspect them before purchasing them. So, stay cool, and find out the drawbacks which you demanded from that Water Heater Natural Gas. Maybe some other manufacturer made the perfect one for you. Just don’t be too lazy to compare your options to theirs before making your final decision.

Pros and Cons sections can be found on most websites. Take your time reading that part. For asking more you can contact them via email or phone.

Quality and performance

Color, Style, Performance, Materials, and, most importantly, Durability are all factors that contribute to quality. When you are buying anything, be carefull to check those quality related issues. We think you are actually paying the money for this. Do you think this Water Heater Natural Gas is worthy enough against the investment you did? It completely depends on the quality that you are going to experience.

Know About Warranty and Return Policies

A lot of manufacturers are making products. A good amount of them are maintaining high quality as well. To make us known about those products, they make also creative advertisements. Everything is fine. But then arrives the matter of Warranty and After Sales Service. For many, it’s really a big deal and it is quite able to make a big difference.

Don’t forget to check the facts like warranty, guarantee, and obviously the return policy if there any. Nobody can claim that nothing will happen, no matter what the quality of that product is. Nothing lasts forever. But a minimum return of value you can expect from the Water Heater Natural Gas you are going to pay for. So, be careful about checking policies. You may get some companies who are so clever that they try to make people puzzled with their obscure and mystical policies. In that case, don’t hesitate to contact with their representative and ask about what you want to know.

Checking FAQs and Customer Reviews makes your job easier.

If you want to save your time precisely, then checking FAQ anwers and customer reviews can be utile for you. There are few common questions people asked before and they are answered as well is called the Frequently Asked Questions or FAQ. On the other hand, you will get a real life experience through the customer reviews in which they share their sotries about the product.

If you want to get a clear idea of both, checking out those two things are must. You may find there such informations which might not come in your mind to ask if you didn’t go through. You will be able to decide whether this Water Heater Natural Gas will come handy or not without any hesitaton.

Final Thought

One last word, don’t forget to consider the price you are paying for the Water Heater Natural Gas is logical enough against the value it is providing to you. Have you been able to gratified with that? Can you be able to fullfill your demands with that? That’s the thing that should get the most importance we guess.

Hope you have enojoyed this whole article which was actually a buying guide that will lead you to buy the best Water Heater Natural Gas. All the efforts we put here will get success when you will find this even a little bit of useful for you. At the end of the day, your satisfaction matters most to us.

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