People experienced that; a tankless water heater has proficiency in saving money in the long run compared to traditional heaters. In this regard, Tankless gas water heaters are the best choice than tanked heaters. Best tankless gas water heaters provide on-demand hot water whenever you require it. It can help you to save an average of $108 per year in the context of energy costs.
If you were to choose from the best gas tankless water heaters out there, you would end up saving much more, especially when you use them economically. Here in this article post, I’ll present you the top 09 best gas tankless gas water heater reviews, benefits, and comprehensive guide. In short, get ready for all the information about the best tankless gas tankless water heaters that you would require; let’s take a look!
Best Tankless Gas Water Heater Reviews – (Top-Picks)
1-Eccotemp i12-NG Tankless Water Heater
The Eccotemp i12-NG is the best natural gas tankless water heater. It is well capable of delivering up to 3 GPM of hot water in ideal situations. Furthermore, its compact design allows you to store it in multiple places at your home, and its automatic temperature control allows you to set it as per your requirement and climate. You don’t face any issue in Eccotemp i12-NG stings because all its sittings are easily viewable via LED display with child safety lock features.
Eccotemp i12-NG is the best-rated gas tankless water heater; you can plug it into a standard electrical outlet. It is specially designed according to extra energy-saving mode and child safety lock to prevent accidental tampering. In addition, it has electronic ignition, which means there is no pilot light to worry about lighting.
Key Features
Whole-home indoor gas-powered tankless water heater
You can activate only on demand
It has no pilot light needed
It will be reducing energy consumption
Sleek, modern design with black tempered glass front panel features
2-Rinnai RU199iN -Natural Gas Water Heater for Small Home
Rinnai RU199iN RRU199iN tankless water heater is a best-rated gas tankless water heater for those who’ve grown tired of running out of hot water. It delivers up to 11 GPM of hot water to your home. Its extra fast 199,000 BTU of heating power makes sure your water never runs cold even when running multiple showers. In addition, its whisper-quiet and push-button controls make it easy to adjust the water temperature as per your need.
When you buy Rinnai RU199iN Tankless Water Heater, you will be impressed with its healing power. The Rinnai RU199iN includes a decent flow rate of 11 GPM, which is great for any tankless water heater. It means that the RinnaiRU199iN takes minimum time to produce hot water. So due to its progressive Efficiency, you can get endless hot water for your home at any time. It is the best tankless gas water heater for a small home if you have a limited number of faucets running in your home.
Key Features
Easy to install
flexible venting
Easy to service and clean
Operational excellence
Integrated check valve that prevents backflow from outside
3-Rinnai RU130eN – Natural Gas Tankless Water heater
Rinnai is the best tankless gas water heater brand. They produce multiple models including Rinnai RU 130En. It is infused with incredible specifications. They’re very few tankless gas water heaters that earned an Energy Star label.
With the spectacular 0.95 EF rating, it is 10 times more efficient than an average tankless gas water heater. It will save your time by producing hot water whenever and wherever you need it. It is equally favorable for any size of the home, even with favorable multiple fixtures. You will save your money by saving energy by operating only when you need hot water.
4- Camplux CA 318 -Natural Gas Tankless Water Heater
The Camplux CA318-NG tankless Water Heater designee with sleek modern-looking black glass front panel creates part for its buyers. It has LED touchscreen controls that are easy to use it. Camplux CA318-NG can heat up to 3.18 GPM, which is sufficient for small families. Complux CA318-NG extra advanced features automatically control the temperature of your water heater.
Camplux CA318-NG is the best gas tankless hot water heater, it also has several safety measures, including a child safety lock, overheats, and flame out shutoff. In addition, the Complex 3.18 GPM tankless water heater has a revolutionary design, making it a unique tankless water heater on the market. It is perfect for whole-house use, and apartment. Camplux CA318-NG water heater designee with innovative technology and advanced protection systems to save your loved ones.
Key Features
You can activate only on demand
Easy to install
flexible venting
Easy to service and clean
Operational excellence
Sleek, modern design
Things we like?
Modern black front panel
LED touchscreen controls
18 GPM Water Flow
On-demand high water capacity range
Energy efficient
Safety measures
Automatic temperature control
Space saver
Things we don’t like?
Only reads the temperature in Celsius
Slow flow rate
Product Information
Product Dimensions 14.37 x 4.72 x 25.39 inches
Item Weight 28.7 pounds
Manufacturer Campus
Voltage 120 Volts
Flow Rate 3.18 Gallons Per Minute
Water Consumption 12 Liters Per Flus
Power Source Gas-Powered
Usage Indoor Use
5-Takagi T-H3-DV-N -Natural Gas Indoor Tankless Water Heater
Tankless water heaters powered by natural gas tankless water heaters are cost-efficient than propane or electric water heaters. Takagi T-H3-DV-N is a coveted Energy Star label that will build its trust in its users.
There is a multiple tankless gas water heater that is well suited for residential and commercial applications, Takagi T-H3 best tangles natural gas water heater is one of them. It is equally suitable for residential and commercial usage such as; small restaurants, beauty salons, and offices. Takagi T-H3 complies with Ultra-Low NOx regulations. It is also suitable for heavier residential usages such as space heating or domestic recirculation systems.
Takagi T-H3 best tangles natural gas water heater because it is certified up to 10,100 ft. altitude. .95 Uniform Energy Factor, making its tankless water heater one of the most efficient heaters on the market. With gas inputs of 199,000 BTU, Takagi can produce hot water for more than 4 bathrooms in warmer climates. It means it has great proficiency to produce hot water in cold climates like Canada, the USA, and the UK.
Takagi T-H3-DV-N is the best tankless natural gas water heater, it supplies hot water directly or indirectly by using storage tanks, recirculation systems, hydronic heating systems, radiant floor systems, and domestic heating applications. The secret behind the high energy efficiency of the
Takagi gas unit is the condenser, and it can increase energy efficiency by more than 10%. The great thing about the Japan-based tankless gas water heater producers is, they offer the above-standard warranty – Heat exchanger (10 years), parts (5 years), labor (1 year). Takagi T-H3-DV-N has only one model with the powerful 10 GPM one. Therefore, it is most appropriate for middle-sized to larger households that required above-average hot water needs.
Key Features
Energy Star qualified
utilizes commercial-grade copper alloy 25 times better than stainless steel
NSF certified for commercial applications
Complies with Ultra-Low NOx regulations of less than 14 ng
You can link it up to 4 units without a Multi-Unit Controller
You can use in the multi-unit link up to 20 units with a Multi-Unit Controller
Integrated controls
Have power cord as standard features
Venting with Schedule 40 PVC, CPVC, PP, Category III stainless steel
Safety features include freeze, overheat, surge protection, and troubleshooting diagnostic codes
Specifications
Maximum Flow Rate: 10 GPM
Max BTU Input: 199,000
Fuel Type: Natural Gas
Energy Factor: 0.94
Gas Connection: 3/4″
Water Connection: 3/4″
Depth: 11-1/4″
Height: 23-5/8″
Width: 17-3/4″
Manufacturer Warranty
15- years limited heat exchanger
5- years limited parts Residential use
5-years limited heat exchanger
5- years limited parts Commercial use
Things we like?
Earned Energy Star rating due to high energy-efficiency
Energy efficient
Space saver
Yearly energy cost is near about $172
Easy controllable digital control system
Comes with a top-of-the-line Japanese standard warranty
Very affordable price for a 10 GPM device
Perfect for household use
Things we don’t like?
Only one available model
Not the easiest unit to install due to the condenser
Product Information
Product Dimensions 10.75 x 17.75 x 22.5 inches
Item Weight 59 pounds
Manufacturer Takagi
Size Medium
Power Source Gas-Powered
Voltage 120 Volts
Temperature Range 100-185 Degrees Celsius
Flow Rate 10 Gallons Per Minute
Usage Indoor use only
Certification Energy Star
6-Noritz NRC66DVNG -Tankless Hot Water Heater
Noritz is a well-known tankless water heater company in Japan; it specialized in making HVAC devices. They produce the best gas tankless water heater_ 39 lbs NRC66DVNG model. It is the most compact and lightweight tankless gas water heater on this list. It’s an indoor water heater and has a condenser which boosts energy efficiency.
Noritz NRC66DVNG has an above 90% energy efficiency. Usually, it comes with two drawbacks; increased size and weight of the gas tankless water heater. The Noritz NRC66DVNG newest efficient condensing Tankless Hot Water Heater is made with a half-inch gas line. It is a condenser type of heater, which uses some of the heat from the exhaust to help heat the water, so due to this, it is more efficient than a non-condensing unit.
Noritz NRC66DVNG exhaust is held inside the unit until it cools, which results in less exhaust. It also allows using of more types of venting to release the exhaust. In addition, its remote thermostat features help you to set the temperature without traveling to the unit.
Noritz NRC66DVNG has an Energy Factor of 0.91 for natural gas and 0.93 for LP. These ratings are nearly 10 points higher than that of comparably sized, conventional tankless water heaters.
It would help if you were careful when installing the Noritz gas tankless water heater because it is an indoor light-weighted water unit. However, Noritz NRC66DVNG is a reliable water heater; the company gives a 10-year long heat exchanger warranty. Noritz NRC66DVNG is one of the best small gas tankless water heaters.
Its maximum hot water flow is 6.6 GPM, which is suitable for small or middle-sized families. The best energy-efficient tankless water heater that uses cheap natural gas is a financially smart investment for middle-class families.
Key Features
Provide endless hot water
It can be vented with Schedule 40 PVC Pipe and Fitting
High-Efficiency tankless water heater
Remote thermostat and 6′ power cord included
High Efficiency
Low exhaust
Remote thermostat
.89 Uniform Energy Factor
Low Nox
Manufacturer Warranty
12 Year Heat Exchanger
5 Year Parts, 1 Year Labor
Things we like?
Small and lightweight gas tankless water heaters
The perfect combination of natural gas
Energy efficient
Space saver
High energy-efficiency
Schedule 40 PVC piping
Easy installation
10-years warranty on heat exchanger
Things we don’t like?
Only one available model (6.6 GPM natural gas)
Indoor-only unit
Product Information
Product Dimensions 6.7 x 13.8 x 23.6 inches
Item Weight 11.42 pounds
Manufacturer Noritz
Power Source Gas-Powered
7-Rinnai RU199iN -Natural Gas Tankless Water Heater
If you have a large family and you love innovative technology then Rinnai RU199 is the best option in the range of tankless water heaters. It will provide 11 GPM hot water. This Rinnai has ThermaCirc360 Technology, which re-circulates hot water through pipes to get ultra-fast hot water. Rinnai RU199 has Wi-Fi monitoring to monitor the efficiency of your water heater and address issues remotely before you will experience a break in service.
You will be experienced the highest flow rate of Rinnai RU199 best tankless water heaters. This would be the best option for large households. If your family members are all on the same schedule and you have multiple bathrooms Rinnai RU199 will comfortably fulfill your hot water needs that everyone can get ready for work in the cold morning.
Key Features
Flame failure – flame rod
Boiling protection
Combustion fan RPM check
Overcurrent – glass fuse
Remaining flame (OHS)
Automatic frost protection
Things we like?
Energy efficient
Endless hot water for your entire home
Indoor Installation Only
Space saver
Up to 11 GPM hot water flow rate
Control-R 2.0 mobile app features timers and schedules
You can remotely put the system into vacation mode
8-CAMPLUX CM264-NG –Natural Gas Residential Water, Heater
Indoor life is always filled with many challenges, especially in a cold environment. CAMPLUX CM264 Natural Gas Water Heater can figure out your clod and rough environment and provide warmness to your love once. The Camplux CM264 Natural Gas Water Heater is the best tankless gas water heater for indoor home use. It produces 2.4 GPM hot water, which is suitable for a small family. Its compact size allows you to install it anywhere in your home.
CAMPLUX range is constantly expanding its features and quality by producing innovative tankless water heaters. It is made with a 110-volt power cord with an internal exhaust fan with a color screen and a safe electronic ignition system. You can get a comfortable shower by adjusting the water temperature.
Camplux CM264 Natural Gas Water Heater designee with new technology supports safety measures such as; overheat and low water shutoff. In addition, its digital temperature display is easy to read, and it comes with all required adaptors and installation instructions.
Key Features
Ease to Use for whole home
Indoor use with safe, efficient power ventilation
The perfect option for small homes, cabins, or apartments
Modern Design with exclusive color
Digital temperature display for easy to read
Eco and Full gas switch for energy saving
Safety features i-e Flame-out protection, anti-freezing protection, over-heating protection
Its airflow pressure switch protection to ensure the safety measures
Equipped with easy-to-use manual water temperature controls.
Manufacturer Warranty
1 Year Warranty
Things we like?
64 GPM
Safety features
Digital temperature display
Small size
Energy efficient
Space saver
Include adaptors
Include installation instructions
Things we don’t like?
Hard to find an additional vent pipe
The heater shuts off randomly
Product Information
Product Dimensions 12.8 x 5.91 x 20.28 inches
Manufacturer CAMPUS
Item Weight 23.8 pounds
Voltage 120 Volts
Power Source Gas-Powered
Flow Rate 2.64 Gallons Per Minute
9- Rheem RTGH-95DVLN-2 –Tankless Hot Water Heater
Japanese tankless water heater companies are famous for introducing profound tankless natural gas water heaters at cheap prices. We have the best natural gas tankless water heater brands like Rinnai and Noritz are good examples. The company has come close to Japanese engineering gas tankless water heater models just like Rheem in the US.
Rheem is infamous to make both electric and natural gas tankless water heaters. Rheem RTG-95DVLN gas-powered mode tankless water heater with a built-in condenser. As you know, high energy efficiency is impossible to achieve without using the condenser.
Rheem tankless water heater is a pocket-friendly best-rated natural gas tankless water heater that saves 6% energy loss that will help to reduce energy expenses.
Rheem RTG-95DVLN introduces an intelligent electronic controller which maintains both the optimum heating output and increases the safety of the RTGH-95DVLN model. In such a way, the Rheem gas tankless water heater can easily heat water anywhere from 85°F to 140˚F very quickly. Moreover, by using Rheem RTGH-95DVLN, will increased energy efficiency comes low NOx emissions. Rheem RTGH-95DVLN can squeeze an additional 10-15% of the energy out of every ounce of natural gas.
To drain the water that is gathered in the condenser is quite difficult, but with With newly built real estate in Rheem RTGH-95DVLN, you can plan for the gas tankless water heater’s drainage with the condenser beforehand. Rheem RTG-95DVLN is a powerful HVAC device that can achieve the maximum hot water flow of 9.5 GPM. That’s enough, even for a large family as well.
By following Japanese standards, Rheem gives you a 10-year warranty for the heat exchanger. The Rheem offers a 12-year warranty on the heater exchanger. For the high energy efficiency and power, its price is quite acceptable. Don’t forget that having energy-efficient best gas tankless water heater will pay for itself in lower natural gas costs which is ideal for every common user.
Key Features
94%Energy efficient with stainless-steel
Intelligent electronic controls designed to increase energy efficiency and safety
Third-party Efficiency listed by AHRI
Up to 38-Feet of 3-Inch PVC Pipe or 5-Feet of 2-Inch PVC Pipe
Things we like?
Energy efficient
High energy efficiency with EF factor of 0.94
Maximum hot water flow is 9.5 GPM
Space saver
Easy controllable digital control system
12-year heat exchanger warranty
Things we don’t like?
Not the easiest unit to install due to the condenser
The tankless water heater is the need of every house. They are proficient enough at producing a minimum of 3 GM hot water within a minute. When you choose a product for purchase, you will experience its worth. There are several benefits you will get from your tankless gas water heater, such as;
On-Demand Hot Water
Tankless units are known for their ability to deliver instant, hot water within a minute. One water unit will produce a minimum of 3 to 11 GM hot water within a minute as per your demands.
Energy Efficiency
The gas tableless water heater consumes less energy, so it will have 96% energy efficiency. Gas heaters help save money in the context of monthly bills.
Increased Lifespan
The tankless water heater is more proficient and durable. A traditional tank water heater can last up to 10 years; on the other hand, tankless gas water heaters last up to 20 years if used properly. Although they are a little bit expensive, tankless units save you money in the long term.
Size
Tankless units are smaller than tank units; they are placed virtually anywhere. However, it is recommended that the manufacturing companies place them close to your main water-based appliance to reduce hot water lag to get better results.
Environmental Impact
Tankless Water Heater gas water heaters are environment-friendly. these units don’t affect on outer environment. They require less energy to work.
Standby Losses
Tank water heaters need to continuously reheat the water to keep its temperature high this strategy will increase your bill that you don’t want to see. On the other hand, tankless units will heat water and consume gas only when you turn on your shower or tap.
Ideal for Smaller Homes
Tankless gas water heaters are ideal for one- or two-faucet homes and even small families.
How Efficient Gas Tankless Water Heaters?
Gas tankless water heaters are very efficient, constantly keep your water hot. In addition, tankless water heaters are more durable as compare to your traditional water heaters. Finally, a tankless water heater comes with a long shelf life in both units and components. After buying a tankless water heater, you will not require yearly maintenance; you will not change your current tankless water heater in the next 15 to 20 years.
Natural gas tankless water heaters are cheaper than electricity. BestTankless Gas water heaters can reach 96% efficiency, while most of them do not go lower than 87% efficiency. Therefore, if you choose a tankless water heater properly, you will save your money and enjoying an efficient product in the long term at cost-effective rates.
What Should You Consider When Buying a Best Gas Tankless Water Heater?
Now you know the basics of the best tankless gas water heaters, it is time to make a purchase best tankless gas water heater. However, if you think that the models that we’ve talked about earlier don’t fit you or your needs, this means that you will need a tad more information to make a wise purchase.
To buy a gas tankless water heater, you have to consider multiple things to buy the best tankless gas water heater for your home. At the start, you also want to consider the design and features, and heating capacity to produce hot water. Therefore, I’ll tell you everything you need to know about the best tankless gas water heaters in the following lines. In the end, I hope this information helps you to make a wise choice in the context of buying the best tankless gas water heater. These points are;
Power Input
Tankless water heaters, power, and size are relatively important factors to be considered. If you need the best tankless gas water heaterfor your small home, then a medium-sized water heater is sufficient for a small family. The average size of the water heater produces a minimum of 4 GM host water which is enough for 2 to 3 bathrooms and one kitchen use.
Before buying a water heater, you have to make sure that the water is hot enough to satisfy your needs and expectations. When you are choosing your water heater, consider these points, such as;
Small spaces will require as little as— 10,000 BTUs
Large or commercial may require as high as– 1,000,000 BTUs
Flow Rate
Flow rate determines the amount of hot water the heater can deliver to you. The flow rate depends upon how many devices you have in your home or you want to power. For example, if you want to supply a single faucet with hot water, a flow rate of 1 GPM should be enough. However, if you want to supply all of your water-based appliances – or your entire home, then you will need a heater capable of more than 1gallons per minute.
Venting
Venting is an important factor in indoor gas water heaters. The heater eliminates hazardous gases that need to be eliminated property. In addition, a venting system will ensure additional home intake from the exterior. Gas tankless water heaters come with two venting options:
Power Venting
This type of venting requires an exhaust pipe. Before you install such a venting, make sure that the installation area has a fresh air circuit.
Direct Venting
Direct venting requires an exhaust pipe, and intake pipe. The exhaust pipe eliminates all carbon monoxide and hazardous gases, while the intake pipe ensures sufficient air intake.
Energy Factor
A gas tankless water heater can help you calculate the unit’s energy efficiency.
Condensing
Condensing gas tankless water heaters can save money on installation. They will become more energy-efficient and emit exhaust air that’s cooler than non-condensing models. Condensing water heaters can also use PVC instead of metal, making a difference in expenses.
Non-Condensing
Non -condensing water heaters are perfect for outdoor placement. These models are usually cheaper, as well as smaller in size.
Best Tankless Gas Water Heaters Features and Specifications
This buyer guide section will introduce you to the most important features and specifications of the best tankless water heater natural gas. When you purchase tankless water, the heater makes sure you can visit the market before purchasing a certain unit. All these below important features and specifications you will find only in a reputable brand. Such features and specifications are;
Maximum Gallons per Minute
Proper Venting System
Condensing/Non-Condensing
Anti-Freeze/Cold Safety
Warranty on Heat Exchanger/Parts/Labor
Energy Factor that results in cost saving
Required Certifications
High enough power input
All of the above features and specifications, depending on the tankless water heart company. However, it is very important that you take your time to properly choose the best tankless gas water heater that will provide your home with a maximum range of hot water.
Installation and Maintenance of best Tankless Gas Water Heaters
Before reading any further, keep in mind that installing a gas tankless water heater is a very difficult process and requires a professional, especially if you don’t know how to handle some of the following steps.
Installation of Best Tankless Gas Water Heater
To install a tankless gas water heater, you will need spade drill bits, power drills, adjustable wrenches, screwdriver sets, torches and tanks, and reciprocating saws. To install your gas water heater, you will need pipes, valves, gas fittings, gas connectors, tankless gas, black pipes, caulk, and sealants.
Install a New Gas Line – if your current gas line has the proper size, then install a valve and a tee in the existing line. Then, run a new gas supply line to the point
Install New Water Lines – you have to tie in new cold and hot water lines with copper pipes and run them to the new heater.
Mount the Water Heater – choose a suitable location for your heater and, if required, build a platform for it to stand on.
Connect the Water Heater – use the manufacturer’s instructions to ensure that the connections have been made properly.
Install the Vent
Turn on the Water Heater – open any faucet to full “hot”
How to Maintain Best Tankless Gas Water Heater?
When you perchance a tankless water heater, you also get an installation guidebook to install your water heater. Here in this buying guide section, I will briefly guide you on maintaining your tankless gas water heater step by step.
Turn the tankless gas water heater’s power off.
Close and turn on the three water valves that are attached to the heater.
Remove the caps of the purge port valves and cold-water valves
Link hosing lines to each of the three valves
Open the purge port valves
Use roughly 2.5 gallons of undiluted white vinegar when backing powder to cleaning your gas water heater
Avoid using harsh chemical solutions
Perform the draining and flushing procedure by following the instructions from your heater manufacturer
Close the purge port valves
Remove the hosing lines from the water valves
Replace the caps of the purge port valves
Re-start your gas water heater
Turn on the sink’s hot water tap to allow any air stuck inside to pass-through
You can safely clean and maintain your tankless gas water heater on your own. However, as mentioned above, if you face any hurdle to clean it, refer to a professional!
Frequently Asked Questions about Best Tankless Gas Water Heaters
Is Rinnai better than Rheem?
Rinnai and Rheem both offer great GPM, but Rinnai beats out Rheem. Both units’ prices are proximately the same. Rheem tankless gas water heater having lower installation costs as compere to Rinnai. It also comes with a 12-year warranty on its heat exchanger, 5 years on its parts but, on the other side, Rinnai offers a 10-years warranty on the heat exchanger and 1 year for parts.
What is the best tankless water heater 2021?
Eccotemp i12-NG Water Heater is the best tankless water heater 2021
Are tankless gas water heaters worth it?
Tankless water heaters use less energy because they only heat up water when their users required it. By using a tankless water heater, you can save your money in the context of your energy bill each year because they don’t waste power. Tankless water heaters are user-friendly and don’t take much space as traditional tank water heaters.
Who makes the best tankless gas water heater?
RinnaiTankless water heater company makes the best tankless gas water heater.
Conclusion
We live in the age of advancement, where every day we get a new addition to the new and innovative home appliances tankless water heater is one of them. Every buyer wants to get the best tankless gas water heater at cheap prices. The help of my reviews and additional information that I’ve provided you regarding tankless water heaters will help to make a smart purchase if you intend to buy a water heater in the near future. All the above-mentioned water heaters are best in their quality and specification but Rinnai V65iN and Eccotemp i12-NG Water Heaters are the best Indoor Tankless gas Water Heaters due to their performance, sleek and fascinating designee and prices. However, if you may feel like an expensive initial investment, remember that there are so many people who are claiming that a tankless water heater has saved their money in the long run!
Being a buyer, you have to keep in mind all the above-mentioned details, benefits, and buying guide, as well as the pros and cons of your expecting products. Hopefully, this review article will help you to perchance, clean, and maintain your tankless water heater.
