Natural Gas tankless water heaters have nowadays become more popular as the demand for efficient home appliances increases. Various natural gas tankless water heater brands manufactured by different companies are currently competing in the market. But for the best result, choosing the Best Natural Gas Tankless Water Heater is the most important part. Natural gas tankless heaters usually deliver more consistent temperatures as well as a high volume of water while also managing to use up less energy as compared to the “tank” water heaters. Unlike other conventional units, these heaters are only active when needed thus saving an average of 45% on the consumer’s energy bills.
The best natural gas tankless heater models also provide hot water at once instead of having to pre-heat and store the water. This means that the water will not run out and it can be used concurrently in various areas of the house.
Table of Contents
- How To Choose a Best Natural Gas Tankless Water Heater
- Top 5 Best Natural Gas Tankless Water Heater in 2021
- #1 Rheem RTGH-95DVLN 9.5 GPM – Indoor Natural Gas Tankless Water Heater
- #2 RINNAI RL94IN 9.4 GPM – Best Natural Gas Tankless Water Heater
- #3 Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater
- #4 Takagi T-H3-DV-N High-Efficiency Natural Gas Tankless Water Heater
- #5 Rheem RTG-95XLN 9.5 GPM Low NOx Outdoor Tankless Natural Gas Water Heater
- Conclusion
Benefits of a Natural Gas Tankless Water Heater
In case the idea of constantly heating water in a tank sitting in the basement sounds wasteful and inefficient to you, then a natural gas water heater might be the right option for you.
The best natural gas water heaters have always been full of promises. By heating the water only when you require it, the suitcase-sized water heaters could potentially save the homeowners a lot of energy as well as storage space.
In addition, the endless hot water supplies mean no more cold showers in your home. Here are the benefits of a natural gas tankless heater:
- Natural Gas is Green: Natural gas is cleaner than the petroleum-based fuels. Natural gas emits fewer chemicals associated with smog, greenhouse emissions, and acid rain. The average natural gas tankless heater home emits 46 percent less carbon than the non-gas counterpart. Replacing non-gas tankless heater with the natural gas tankless heater prevents around 3,000 pounds of carbon (IV) dioxide from entering into the atmosphere each year
- Natural Gas is Efficient: Natural gas reaches the home directly at more than 3 times the efficiency of the non-gas energy. While natural gas tankless heaters provide up to 90 percent usable energy, up to 78 percent of non-gas’ o energy is already wasted by the time it’s delivered to the home. As a result, the natural gas tankless heaters are more efficient to use.
- Natural Gas is Economical:Â Natural gas tankless heaters cost up to half the cost to operate as compared to the non-gas counterparts. Homes with the natural gas tankless heaters save an estimated 25 percent on energy costs each month.
- Natural Gas tankless heaters are reliable:Â Natural gas is normally delivered to your home through underground pipelines and provides nearly 100 percent reliable services. Homes with natural gas tankless heaters can still use hot water and even cook even when the power goes out.
How To Choose a Best Natural Gas Tankless Water Heater
A natural gas tankless heater can just be the second largest energy user system in your home, after the heating and cooling system.
As a result, it is important to make wise choices when you’re replacing an existing natural gas heater or when purchasing a new gas hot water heater.
Below are the factors to consider when choosing the best natural gas tankless water heater for your home:
Top 5 Best Natural Gas Tankless Water Heater in 2021
Natural gas tankless heaters are popular since they give the precise amount of hot water that you need. This type of heaters can save your money since you do not end up heating several gallons which just sit in the tank, waiting to be used.
An efficient gas hot water heater will save you considerable amounts of cash. However, the market is home to a wide range of hot water heater models and it’s important to choose the heater that best suits the family’s hot water needs.
#1 Rheem RTGH-95DVLN 9.5 GPM – Indoor Natural Gas Tankless Water Heater
Rheem RTGH-95DVLN 9.5 is a top-class water heating solution which runs on natural gas and also provides an unlimited supply of hot water to your whole family. It’s a very simple-to-use natural gas heater which comes with the remote control panel that’s designed for setting the output’s water temperature. You might also use the heater to display the fault codes.
Features
- Direct vent system: The Rheem heater contains the two-pipe direct vent system that connects up to 5 feet of 2-inch PVC pipe or 35 ft. of 3-inch PVC pipe.
- Intelligent electronic controls: Rheem RTGH-95DVLN 9.5 has increased safety and efficiency with Intelligent electronic controls. With the up and down arrow buttons, you can change the default temperature setting which is set at 110 degrees F to 120 degrees F.
- Energy efficiency: Operating at around 199,000BTUs, Rheem RTGH-95DVLN 9.5 is a high-performance natural gas tankless heater. The stainless steel condensing heat exchanger on the heater makes it 94% energy efficient. The Rheem RTGH-95DVLN is also an ENERGY STAR rated natural gas tankless heater.
Cons
- It has been reported that this heater has a short span of life. But that should not throw you away because every product’s lifespan depends on how you use it.
All in all, it is a very good heater. If you have a relatively big house, this heater will work just fine for you.
#2 RINNAI RL94IN 9.4 GPM – Best Natural Gas Tankless Water Heater
Experience the never-ending supply of hot water and a sculpted sleek water heater design using the Rinnai RL94iN Heater. Whether you’re building a spacious home or you are just remodeling the older home, it can be used in pairs, individually or in banks of 3 or more so as to supply your entire home’s hot water needs.
Features
- No additional venting required: The Rinnai RL94iN can be placed in almost any room. it vents outside and has an integrated condensate collector. The natural gas tankless heater also requires no additional venting and it can be installed even in a recessed enclosure where it’s painted or textured so as to match with your home’s exterior for a clean and inconspicuous appearance.
- Commercial-grade heat exchanger: This Tankless Water Heater also contains the commercial-grade heat exchanger for maximum durability. With this best gas hot water heater, homeowners will get the reliability of the commercial-grade construction as well as an industry-leading warranty of 12 years.
- EZConnect feature: The heater has an EZConnect feature for connecting two or more units. Three or more units can also be manifold using the MSA control board.
- Digital temperature control: The heater has Digital temperature control, troubleshooting and monitoring features. Temperature can be monitored and changed with a standard MC-91 controller (included): 98F to 140F.
Cons
- Some users complained that this heater makes a lot of noise. But it is not that big of a deal since it does not affect the efficiency of the heater
This is one of the best natural gas tankless water heaters out in the market. This is the number one choice for many customers and so, you should consider it.
#3 Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater
This model by Rinnai is relatively new as compared to other models. It has one of the best looks among all Natural Gas Water Heaters with a metallic finish and a compact design. The compact size means it can be installed indoors as well without any hassles.
Rinnai RUC98iN has up to 0.92 Uniform Energy Factor and up to 0.96 Energy Factor which is quite impressive considering the compact size of the water heater.
Features
- Ultra Energy Conservative: The heater features 95% thermal efficiency and is one of the most energy-efficient heaters on our list. The heater uses almost all of its energy to heat the water. Consequently, there is only 5% wastage.
- High Volume Output: The Rinnai RUC98iN produces an output of 9.8 gallons per minute, and can serve up to 5 water outlets at any given time.
- Operates quietly: The Rinnai RUC98iN is extremely quiet which makes it ideal to use indoors and also at night. It is hard to find such a quiet unit.
Cons
- The temperature control unit malfunctions after some time
#4 Takagi T-H3-DV-N High-Efficiency Natural Gas Tankless Water Heater
Every natural gas water heater is an energy-efficient unit. However, the Takagi T-H3-DV-N
Water heater probably beats all other heaters in terms of energy efficiency.
This isn’t a mere statement but as per the U.S. Government issued Energy Guide, the yearly energy cost is around $172.
You might be wondering what makes it so energy efficient. That is primarily due to the reduced emission of Nitrogen Oxide.
Another thing that will make you fall in love with the Takagi Tankless Water Heater is the coverage of parts and labor under warranty. You will hardly find a handful of water heaters with such wide coverage.
Talking about the warranty, the water heater offers 10 years of heat exchanger, 5 years of parts, and 1 year of labor coverage
Features
- High Safety Features: The Takagi T-H3-DV-N comes with high safety features which makes it ideal for both commercial and residential usage. This includes surge protection, overheat, troubleshooting diagnostic codes, and freeze.
- Ultra Energy Efficient: The tankless water heater boasts a high level of energy efficiency. The annual energy cost is a mere $172.
- Excellent Heat Transfer: The Takagi tankless water heater uses commercial-grade copper alloy which is at least 25 times better at transferring heat than stainless steel. This makes the heater ideal for heavy residential usages like for space heating and other similar usages.
Cons
- The heater is only available in one variant I.e 10 GPM model.
#5 Rheem RTG-95XLN 9.5 GPM Low NOx Outdoor Tankless Natural Gas Water Heater
Rheem is a widely trusted and highly brand for its vast range of water heaters. Similar to Rheem’s other water heaters, the RTG-95XLN Tankless Natural Gas Water Heater is another excellent water heater that accompanies both Rheem’s years of experience and the latest technology to bring us one of the best outdoor tankless water heaters.Â
One of the best things about Rheem RTG-95XLN is its 10-year warranty on heating parts and its stainless steel heat exchanger that gives you the option to connect both vents as water demand turns high. Thus you never run out of the supply of hot water.Â
Features
9.5 GPM Flow Rate: If you want to install a single tankless water heater for multiple bathrooms and faucets, Rheem RTG-95XLN is an excellent option as it has a large 9.5 gallons per minute water flow rate. The impressive 9.5 GPM means that your family will never run out of hot water supply. Rheem RTG-95XLN 9.5 GPM is also an efficient tankless water heater for commercial use.
Energy Efficient: No matter if you talk about the energy consumption or fuel options, Rheem RTG-95XLN will surely impress you. The unit reaches up to 94%, it emits less carbon dioxide and operates on both propane and natural gas.
Latest Technology: Rheem RTG-95XLN tankless water heater comes with EcoNet smart home technology that enables you to control your water heater remotely via an app. With Rheem RTG-95XLN, you do not have to go out to adjust the gas power and water temperature; you can easily do this via your mobile app.Â
Cons
- Complex to install without professional help. So, we would recommend you to hire a professional for proper installation.
All-in-all, Rheem RTG-95XLN tankless water heater is an excellent natural gas outside water heater that is ideal for large families or commercial use.
Conclusion
There are several brands of natural gas heaters to choose from and each brand is slightly different from one another. Some brands specialize in providing Eco-friendly technology while other brands put their main focus on power and efficiency. You should, therefore, be sure that you find the right model which suits all of the needs of the consumer, based on size, design, preference, and price.
Many brands now offer Tankless water heater units with internet connectivity that will allow you to adjust the settings and monitor the usage via a smart device.
Additionally, smart technology allows the unit to detect the source of issues with the system. This information will save you and your plumber time and effort when they show up knowing precisely how to fix the problem. Knowing when to descale is also easier since the smart system alters you at the right time.
However, you should try not to make the decisions solely based on how much money will be deprived of the pocket. When purchasing the best natural gas heater, you should make sure that it will be of high quality and it’s also able to last for many years so that you will not have to worry about the heater for at least one decade or so.
Have a quick look at the Natural Gas Tankless Water Heaters Comparison Table.
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Hi, This is Luis. Author at “TheHeatersGuide”. I am a graduate in Mechanical Engineering. Currently researching on heating technology. However, I have learned many home heating techniques and still learning the home heating technolgy. And I love to share my research and reviews.
