The intensity of extreme cold becomes sometimes too high that it needs to be controlled instantly. Especially during winter months, it is required to use some heat source to alleviate the extreme coldness in the weather. With the use of natural gas water heaters, you can do this effectively and safely. Implied from the name, these water heaters make use of natural gas for their operation. There are no safety concerns and the heat output is quite efficient. Generally, natural gas is more expensive than other fuels. But due to its great effectiveness at relieving the coolness, the price is justifiable.
The good thing about these water heaters is they reduce the odds of sickness like asthma. Moreover, they are effective at controlling breathing-related ailments. Before purchasing, you need to look at the amount of heat generated. It is expressed in BTU. If you want to save on gas consumption, select a water heater equipped with an automatic shut-off feature. Without delays, now let’s get into more details of the best natural gas water heaters:
List of 11 Best Natural Gas Water Heaters Review in 2020:
11. Eccotemp 45HI-NG Indoor 6.8 GPM Natural Gas Tankless Water Heater:
Suitable for indoor use, this tankless water heater comes with a large flow rate of 6.8 GPM. This much flow rate is enough to trigger efficient heat output. The heat efficiency is 140,000 BTU per hour. The best thing about this heater is it is energy efficient. It is available in a compact size, so Gas Water Heaters do not occupy too much space. This heater assures easy, safe, and hassle-free installation experience.
There is a need for 4-inch venting for the indoor models. You can separately purchase the venting. The entire operation is quiet and safe. There is the inclusion of pressure and temperature relief valve. Moreover, a gas shut-off valve is present which comes with 0.75-inch NPT fittings.
Pros:
- Energy-efficient operation
- All necessary accessories included
- Comes with an excellent flow rate
Why We Liked It?
Due to the indoor installation, it saves space in your home. The entire operation is quiet, safe, and reliable.
10. Rinnai RUS75eN Tankless Hot Water Heater, White:
Now you can get a continuous hot water supply for your home. This is possible with the setup of this Rinnai tankless water heater. The maximum flow rate is up to 7.5 GPM. The Control-R 2.0 mobile app supports schedules and timers all through the day. It enables you to remotely control the system in vacation mode. Now you can get rid of scheduling your warm water need.
With the setup of this heater, no need to take a hot shower, running the dishwasher, or doing lots of laundries. This heater makes sure you are never left out of warm water. The compact size saves valuable space.
Pros:
- Saves floor space
- Provides constant hot water
- Compact design for easy installation
Why We Liked It?
We liked its size just like a small suitcase. Gas Water Heaters do not occupy much space. The installation is easy and quick.
9. Noritz NRC66DVNG Indoor Tankless Hot Water Heater:
Noritz assures constant hot water supply through this heater. It can be vented through Schedule 40 PVC pipe as well as fitting. The maximum flow rate is up to 6.5 gallons per minute. Moreover, the heat efficiency is enough for most applications. The pack contains a 6-foot power cord and a remote thermostat.
Basically, this NRC66DV appliance is a fully condensing type tankless water heater. It comes implemented with a cutting-edge heat exchanger design. A controller is available. There is an inclusion of different adapters and terminations. Gas Water Heaters facilitate a wide range of venting options.
Pros:
- Comes with a long power cord
- Efficient heat output
- Delivers excellent flow rate
Why We Liked Natural Gas Water Heater?
No problems when installing on a clothing washer, in a garage or on an outside wall.
8. Noritz NR50ODNG Outdoor Tankless Water Heater:
The aforementioned Noritz water heater is suitable for outdoor applications. Gas Water Heaters come with a maximum heat output of 120,000 BTU/hour and the maximum flow rate is 5 GPM. The use of natural gas conveys excellent efficiency.
It is straightforward to install. No need to purchase a typical tank water heater. Simply plug into a house power supply and turn on the water supply.
Pros:
- Endless hot water output
- Excellent heat output and flow rate
- No need to buy a standard tank water heater
Why We Liked It?
The price seems affordable for the features offered. The heat efficiency is excellent and there are no safety concerns.
7. Marey Power Gas 10L Tankless Water Heater:
With 10 liters of capacity, this tankless water heater is a famous appliance in the market. It is uniquely designed to convey continuous hot water supply for up to 1 or 2 points of use concurrently. You can use it for a wide range of residential hot water applications. The compact design saves space and facilitates ease of installation. All you need is -D cell battery for the combustion and venting.
The flow rate is 2.7 GPM. A digital panel is included. It accurately shows digital temperature. The electric energy consumption is 60% less than the traditional tank water heaters. This makes the heater more cost-effective.
Pros:
- Provides continuous hot water supply
- Equipped with digital temperature display
- Reduced energy consumption
Why We Liked Natural Gas Water Heater?
We liked the energy-efficient operation. This heater is perfect for cabins, campsites, residential use, and remote areas.
6. Marey GA10LP Power 10L Tankless Water Heater:
What makes this Marey 10L water unique is its compact size. It saves space and provides simplicity of installation. It can heat a large quantity of water and subsequently provides endless hot water supply. If you need an instant hot water supply, this heater is a good choice for you.
It is a perfect alternative for homes suffering from recurrent power outages. The water temperatures are easy to control. The rustproof body construction makes sure there is no water loss due to leakages. The flow rate is 2.7 GPM. There is a digital panel included. It precisely depicts the digital temperature.
Pros:
- No electrical connection needed
- Compact design saves space
- No leakage problems
Why We Liked It?
There is a significant saving in energy consumption. No issues related to power outages.
5. Rinnai V65EP Tankless Water Heater, Large:
Now get endless hot water supply for your whole home. This is possible with the help of this Rinnai tankless water heater. It is a high-efficiency water heater with a flow rate of up to 6.5 GPM. The Control-R 2.0 mobile app is included. Gas Water Heaters allow the scheduling of hot water supply throughout the day. You can remotely control the system.
No worries about running out of hot water supply. Due to the compact size, it does not occupy much space. No delays in getting hot water.
Pros:
- Compact design for easy installation
- Excellent flow rate
- Circulates hot water through pipes
Why We Liked Natural Gas Water Heaters?
The heat efficiency is excellent for different applications. The petite size makes it easy to install in limited space.
4. Marey Power Gas 5L Natural Gas Tankless Water Heater:
With the help of this 5-liter tankless water heater, hot water supply is provided in a few seconds. It is a suitable alternative for homes suffering from power outages. It is easy to control the water temperature. There is up to 60% saving on electricity bills. No need for any electrical connection.
Using this heater, you can heat the unlimited volume of water according to the need. It is designed to supply constant hot water for up to 1 or 2 points of users concurrently.
Pros:
- Space-saving design
- A perfect alternative for frequent power outages
- Easy control of water temperature
Why We Liked Natural Gas Water Heater?
The compact design saves space. You get constant hot water supply on demand and as per the need.
3. Rinnai Natural Gas Water Heater 9.4 GPM, RL94iN-Natural Gas/ 9.4 GPM:
This model of Rinnai tankless water heater is suitable for indoor installation only. It provides up to a 9.4 GPM flow rate. There is the implementation of Circ-Logic technology. It enables you to set recirculation patterns which match with your usual habits. The maximum heat output is up to 199,000 BTU.
Its operation uses 40% less energy than conventional tanks. This is because you heat water only when needed. No more delays in obtaining hot water supply.
Pros:
- Provides continuous hot water supply
- Reduced energy consumption
- The excellent flow rate of up to 9.4 GPM
Why We Liked It?
It provides a constant warm water supply for the whole house. There is the inclusion of Wi-Fi monitoring which makes this heater unique.
2. Rinnai V65IN Tankless Natural Gas Water Heater:
The Rinnai V65IN heater is famous for its high heating efficiency. It provides up to a 6.5 GPM flow rate. The Control-R 2.0 mobile app comes with support for scheduling the heat supply all through the day. This enables you to remotely regulate the system when operated in vacation mode. So, you will get rid of scheduling your hot water requirement.
Pros:
- Suitable for small to medium homes
- The excellent flow rate of up to 6.5 GPM
- Quick and easy installation
Why We Liked It?
It works perfectly for small to average size homes. Its compact size allows easy installation in limited space.
1. Eccotemp i12-NG Tankless Natural Gas Water Heater:
Boasting revolutionary design, this water heater comes with some innovative features. The flow rate is up to 3 GPM. It triggers hot water supply only when needed. There is a significant reduction in energy consumption. The appearance features a smooth, modern design. There is a front panel made up of tempered glass. The simple-to-use LED controls are included. The electronic ignition mechanism is safe.
Pros:
- The electronic ignition mechanism is safe
- Comes with automatic temperature control
- Sleek, modern design
Why We Liked Natural Gas Water Heaters?
We liked the bright LED screen that shows the readings. The advanced features included are automatic temperature controls, child lock, and energy-saving mode.
Key features to consider for the best natural gas water heaters:
The following section helps you to easily choose one among the best natural gas water heaters:
Energy-efficiency:
The key purpose behind using a natural gas wall heater is it provides efficient heat output. During the operation, much energy is not consumed. You can measure the efficiency of the gas heater through energy efficiency (EF). It depicts how efficiently heat is transferred from the heating element into water.
It is better to go for a higher energy factor. This is because the higher the energy factor offered with the heater the more would be the efficiency. Typically, the energy efficiency of these heaters varies between 0.5-0.6. Few of the high-end models come with an energy efficiency of up to 0.8.
Flow rate:
Once sufficient heat is produced inside, Gas Water Heaters need to be transferred to the output. This is where the flow rate comes into play. You have to get an understanding of the flow rate and compare it between different models. Based on this, the purchase becomes easy. Generally, the flow rate is calculated in terms of GMP (gallons per minute).
The hot water flow will get stopped only when the heater attains its maximum heating ability or passes above the threshold. In case you want to have a continuous flow of hot water all the time you use, make sure you measure in the exact requirement.
Capacity:
It is important to look at the storage capacity of the heater since these heaters do not have extra storage spaces for water storage and reheating. These heaters function on a comprehensive instant heating functionality. It leaves no room for an additional area of water storage. You have to wait for the water to warm up. After that, you will get instant water as soon as you turn on the heater’s switch.
In the decent quality natural gas water heaters, there are no issues like reheating, thermal loss, and shortage of warm water. No need to wait for the hot water. Make sure you check what the total storage capacity is and then proceed for the purchase.
Concluding Note:
Without any safety concerns, these natural gas water heaters provide constant hot water supply. Most of them come with superb flow rates and heat efficiency.
