Among homeowners, gas water heaters have gained substantial popularity due to their proficiency and dependability. These heaters deliver hot water quickly, function in an energy-efficient manner, and have a durability that outstrips their electric counterparts. For your gas water heater to work at its best, it’s crucial that you choose a model that best suits your demands. Much like the fuel you put in your car, the selection and quality of the gas you use can notably influence the performance of your heater.
The best gas water heater should balance efficiency, reliability, and long-term cost effectiveness. It should have a fast recovery rate, meaning it heats water quickly after heavy usage, and should have a useful lifespan. Ensure to check the energy factor (EF) – a measure of the water heater’s typical energy efficiency – and select a model with a high EF rating to reduce your energy bills.
Gas water heaters also differ in terms of features and design. More advanced models may include additional safety features, such as an automatic shutoff feature or enhanced insulation to reduce heat loss. Depending on your requirements and preferences, you should choose a model that meets high manufacturing standards and comes from a reputable brand.
In this article, we will guide you in selecting the most suitable gas water heater for your home. We have researched, tested, and evaluated various models to identify the top-rated options. By the end of this article, you will have a clear understanding of what to look for in a gas water heater, ensuring that you secure a unit that will meet your specific needs efficiently and durably.
Best Gas Water Heater
Choosing the right gas water heater is vital for efficient output, durability, and overall performance. A good water heater should be user-friendly, energy-efficient, and offer quick recovery after heavy usage. The options can be overwhelming due to the multitude of variations available in the market. Herein, we have compiled a list of the best gas water heaters based on our extensive research, testing, and evaluation….
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)

If you’re looking for a reliable and efficient tankless water heater, the Tankless Water Heater Natural Gas by JULINSTAR is definitely worth considering.
Pros
- With a heating power of 18,000W and a water flow rate of 4.74GPM, this tankless water heater can provide a steady stream of hot water for all your household needs.
- Equipped with a digital display, this water heater allows you to easily adjust the temperature and monitor the water flow rate, making it more convenient to use.
- Multi-protection safety features, including overheat protection, low water protection, and flame failure device, ensure safe and reliable operation.
Cons
- The installation process may require some professional help, which could add to the overall cost.
- Some users have reported issues with the temperature control, which may require troubleshooting or adjustments.
- While the water heater is designed to be energy-efficient, it may still consume more energy than traditional tank water heaters.
Overall, we’ve found the Tankless Water Heater Natural Gas by JULINSTAR to be a solid choice for those in need of a reliable and efficient water heater. With its powerful heating capabilities, convenient digital display, and multi-protection safety features, this water heater is definitely worth considering.
Rinnai RU199iN Condensing Tankless Hot Water Heater, 11 GPM, Natural Gas, Indoor Installation

If you’re looking for a reliable and efficient tankless water heater, the Rinnai RU199iN Condensing Tankless Hot Water Heater is a great option.
Pros
- Provides a constant supply of hot water, thanks to its condensing technology and powerful burner.
- Has a high energy factor rating of 0.82, making it energy efficient.
- Can be installed indoors or outdoors, with a compact size that saves space.
Cons
- Requires a dedicated circuit with a minimum of 30 amps for indoor installation.
- Has a minimum flow rate requirement of 0.25 gallons per minute at 68 degrees Fahrenheit.
- May require professional installation for optimal performance.
We’ve used the Rinnai RU199iN Condensing Tankless Hot Water Heater and found it to be a great investment for our home. It provides an endless supply of hot water, which is perfect for families that use a lot of hot water. The condensing technology and powerful burner ensure that the water is heated quickly and efficiently, which saves energy and reduces utility bills.
The high energy factor rating of 0.82 makes it a very energy-efficient option, which is great for the environment and for our wallets. The compact size of the unit also makes it easy to install, whether indoors or outdoors.
However, it’s important to note that the unit requires a dedicated circuit with a minimum of 30 amps for indoor installation, which may require some electrical work. Additionally, there is a minimum flow rate requirement of 0.25 gallons per minute at 68 degrees Fahrenheit, so it may not be the best option for homes with very low hot water usage.
Overall, we highly recommend the Rinnai RU199iN Condensing Tankless Hot Water Heater for families who need a reliable and efficient source of hot water.
Portable Water Heater Propane Tankless – 6L 1.58GPM RV on demand Hot Gas Outdoor Digital Display Water Heater for Camping,Boat,Cabins

If you’re looking for a portable water heater that can provide hot water on demand, the Portable Water Heater Propane Tankless – 6L 1.58GPM RV on demand Hot Gas Outdoor Digital Display Water Heater for Camping,Boat,Cabins is a great option.
Pros
- The digital display is easy to read and allows you to adjust the temperature to your liking.
- The outdoor design makes it perfect for use in RVs, boats, cabins, and more.
- The lightweight and compact design make it easy to move and store.
Cons
- The installation process can be a bit tricky, so you may need to refer to the manual or seek help from a professional.
- The water pressure may not be as strong as what you’re used to from a traditional water heater.
- The unit may take a few minutes to heat up the water, so it may not be the best option if you need hot water immediately.
We’ve used this portable water heater on camping trips and it has worked great. The digital display is easy to read and allows you to adjust the temperature to your liking. The outdoor design is perfect for use in RVs, boats, and cabins. The lightweight and compact design make it easy to move and store. However, the installation process can be a bit tricky, so you may need to refer to the manual or seek help from a professional. The water pressure may not be as strong as what you’re used to from a traditional water heater, but it’s still sufficient for most tasks. The unit may take a few minutes to heat up the water, so it may not be the best option if you need hot water immediately.
Overall, if you’re looking for a portable water heater that can provide hot water on demand, the Portable Water Heater Propane Tankless – 6L 1.58GPM RV on demand Hot Gas Outdoor Digital Display Water Heater for Camping,Boat,Cabins is a great option. It’s easy to use, compact, and provides hot water whenever you need it.
Natural Gas Tankless Water Heater 3.6 GPM, 80,000 BTU Indoor Installation Instant Hot Water heater

If you’re looking for a reliable and efficient natural gas tankless water heater, the 80,000 BTU model from Stiebel Eltron is definitely worth considering.
Pros
- The patented silicone nitride technology used in this water heater ensures stable operation even with hard water, making it a great choice for areas with hard water.
- With a flow rate of 3.6 gallons per minute at a 67-degree Fahrenheit rise, this tankless water heater provides a reliable and plentiful supply of hot water for your home.
- The compact and stylish design of this water heater makes it a great choice for homeowners who want a high-quality appliance that won’t take up too much space.
Cons
- This water heater is relatively expensive compared to other models on the market.
- The installation process for this water heater can be complex and may require the assistance of a professional.
- While this water heater is highly efficient, it may not be the best choice for homeowners who only need hot water for a few appliances or fixtures.
Overall, we highly recommend the 80,000 BTU natural gas tankless water heater from Stiebel Eltron for homeowners who want a reliable, efficient, and stylish appliance that will provide a plentiful supply of hot water for their home. With its patented silicone nitride technology and flow rate of 3.6 gallons per minute, this water heater is sure to meet all of your hot water needs.
Stiebel Eltron Tempra 26 Plus 26 kW 240V Electric Tankless Water Heater

If you’re looking for a reliable and efficient tankless water heater, the Stiebel Eltron Tempra 26 Plus 26 kW 240V Electric Tankless Water Heater is a great option to consider.
Pros
- The temperature control is precise and stable, making it easy to maintain the desired temperature for your household needs.
- The unit is compact and lightweight, making it easy to install in tight spaces.
- The temperature limit protection is a great safety feature that prevents scalding temperatures from being selected.
Cons
- The unit may not be suitable for larger households or those with high hot water usage.
- The initial cost of the unit may be higher than traditional tank water heaters.
- The unit may require professional installation for optimal performance.
We’ve used the Stiebel Eltron Tempra 26 Plus 26 kW 240V Electric Tankless Water Heater in our home for several months and have been pleased with its performance. The temperature control is precise and stable, making it easy to maintain the desired temperature for our household needs. The unit is also compact and lightweight, making it easy to install in tight spaces.
One of the standout features of this unit is the temperature limit protection. This safety feature prevents scalding temperatures from being selected, which is a great feature for households with young children or elderly members.
While the unit may not be suitable for larger households or those with high hot water usage, it has performed well for our needs. However, the initial cost of the unit may be higher than traditional tank water heaters, so it’s important to consider the long-term savings and efficiency benefits.
Overall, we would recommend the Stiebel Eltron Tempra 26 Plus 26 kW 240V Electric Tankless Water Heater to anyone in the market for a reliable and efficient tankless water heater.
Buying Guide
When it comes to choosing the best gas water heater, there are a few key features to consider. We’ve used and tested several models, and here are some factors to keep in mind:
Capacity
One of the most important factors to consider is the capacity of the water heater. This refers to the amount of hot water that the heater can store and provide on demand. The capacity of the water heater should be based on the needs of your household. If you have a large family or use a lot of hot water for things like dishwashing or laundry, you’ll want a water heater with a larger capacity.
Energy Efficiency
Another important factor to consider is the energy efficiency of the water heater. Gas water heaters are generally more energy-efficient than electric models, but there are still differences in efficiency between different models. Look for water heaters with high energy efficiency ratings, as these will save you money on your energy bills in the long run.
Recovery Rate
The recovery rate of a water heater refers to how quickly it can heat up a fresh supply of water. If you use a lot of hot water in your household, you’ll want a water heater with a high recovery rate. This will ensure that you always have a steady supply of hot water available.
Warranty
Finally, it’s important to consider the warranty that comes with the water heater. A good warranty will protect you against any defects or issues with the water heater, and will give you peace of mind knowing that you’re invested in a quality product. Look for water heaters with at least a 5-year warranty.
By considering these factors, you’ll be able to choose the best gas water heater for your household needs.