Looking for the best rated gas water heaters? These top models offer energy efficiency and endless hot water for your home.
When it comes to reliable hot water solutions, the Rinnai RX199iN and Rheem RTG-70XLN-3 stand out. The Rinnai RX199iN provides up to 11.1 GPM, ideal for larger households, while the Rheem RTG-70XLN-3 delivers high efficiency with 7.0 GPM, perfect for outdoor installations.
These tankless water heaters are versatile, catering to various needs. The Rinnai model is suitable for both indoor and outdoor use, while the Rheem focuses on outdoor efficiency. Each unit features advanced technology for optimal performance.
In this full review, you will learn about their features, benefits, and how they compare. Find out which gas water heater is perfect for your home needs.



Rinnai RX199iN Tankless Water Heater
If you’re in the market for a reliable and efficient water heating solution, the Rinnai RX199iN Condensing Smart Sense Tankless Water Heater is a fantastic choice. This innovative unit can be powered by either natural gas or propane and is designed for both indoor and outdoor installations. With a capacity of up to 11.1 gallons per minute, it ensures that you’ll never run out of hot water, making it perfect for families and households with multiple fixtures.
Pros
The Rinnai RX199iN stands out for its compact design, resembling a small suitcase, which makes it easy to install in various locations. Its Smart Sense gas control system optimizes performance and efficiency, boasting an impressive UEF of .98. Users will appreciate the Quick Flush feature for easy maintenance and the option to control the unit via WiFi with the Controlr module (sold separately). This tankless water heater is not only efficient but also environmentally friendly, reducing energy consumption significantly.
Cons
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Rheem High Efficiency Outdoor Tankless Water Heater
If you’re looking for a reliable water heating solution, the Rheem RTG-70XLN-3 High Efficiency Non-Condensing Outdoor Tankless Natural Gas Water Heater is an excellent choice. With a remarkable 7.0 GPM flow rate, this unit ensures you have continuous hot water for your entire household, even during peak usage times. Whether you’re running the shower while the dishwasher is on, this water heater meets your demands effortlessly.
Pros
The Rheem RTG-70XLN-3 stands out for its energy efficiency, only activating when hot water is needed, which significantly reduces energy costs. Its water-saving setting can conserve up to 1,100 gallons of water annually, making it an eco-friendly option. Additionally, the hot-start programming feature eliminates the frustration of cold-water bursts, ensuring a smooth and comfortable experience. Its compact design, which is 19% smaller and 22% lighter than previous models, allows for easy installation and saves valuable space.
Cons
While the Rheem RTG-70XLN-3 is a fantastic product, it does have a few drawbacks. Some users may find the initial setup a bit complicated, especially if they are not familiar with gas appliances. Additionally, being an outdoor unit, it requires proper installation to shield it from the elements, which could add to installation costs.
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Rinnai Tankless Natural Gas Water Heater
If you’re in the market for a reliable and efficient hot water solution, the Tankless Water Heater Natural Gas 4.74GPM 18L is an excellent choice. This instant hot gas water heater delivers a steady supply of hot water while saving space and energy. With its sleek black design and advanced features, it’s perfect for both bathrooms and kitchens.
Pros
This tankless water heater stands out with its impressive 4.74 gallons per minute output, ensuring you have enough hot water for multiple fixtures at once. It operates at a maximum temperature of 167°F, providing customizable comfort. The heater is crafted from high-quality stainless steel and features an oxygen-free copper water tank, ensuring durability and corrosion resistance. Additionally, its advanced combustion technology significantly reduces gas consumption and noise, making it an eco-friendly choice.
Cons
While the installation process is relatively straightforward, it does require proper ventilation and a smoke exhaust pipe for safe operation. Some users may find the need for a minimum water pressure of 3.6PSI to be a limitation. Furthermore, in colder climates, it’s essential to drain residual water to prevent freezing, which may require extra attention during the winter months.
Overall, this natural gas water heater offers a perfect blend of efficiency, safety, and performance, making it a valuable addition to any home or remote location.
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Ranein Tankless Gas Water Heater 4.3 GPM
If you’re searching for an efficient and reliable hot water solution, the Ranein Natural Gas Tankless Water Heater is a standout choice. With a powerful heating capacity of 100,000 BTU and a flow rate of 4.3 GPM, this unit delivers continuous hot water to multiple points in your home, making it ideal for families or those who enjoy long showers. Its innovative features cater to various needs, ensuring convenience and comfort.
Pros
The Ranein tankless water heater offers remarkable efficiency with its on-demand heating system, eliminating the frustrating wait for hot water. Its Four Seasons Function automatically adjusts the temperature based on seasonal changes, while the Kitchen Function provides a default output of 100°F, perfect for cooking. The bathtub function enhances user experience with adjustable output and reminders. Additionally, the inclusion of the exhaust pipe in the kit saves you extra costs and the oxygen-free copper tank minimizes heat loss, ultimately lowering your energy bills.
Cons
While the Ranein unit has many advantages, it does require professional installation to comply with local building codes, which can add to the overall cost. Furthermore, it’s not recommended for use in areas above 2,000 feet, limiting its accessibility for some users. Also, the initial investment may be higher than traditional tank heaters, but the long-term savings on energy can offset this.
This tankless water heater is an excellent investment for those seeking reliable hot water without the hassle of traditional systems. Experience the convenience and efficiency that Ranein offers!
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Rinnai Natural Gas Tankless Water Heater
I recently purchased the Natural Gas Tankless Water Heater and I couldn’t be happier with my decision. This 4.74GPM unit delivers instant hot water whenever I need it, making it a fantastic addition to my home. With a maximum temperature rise of 167°F, it easily meets the demands of my family, providing hot water for multiple points of use simultaneously.
Pros
The efficiency of this tankless water heater is impressive. It boasts a powerful 68,000 BTU output, ensuring that I never run out of hot water, even during peak usage. The stainless steel body not only looks great but also offers durability and corrosion resistance. I really appreciate the LED smart digital display, which allows me to adjust the temperature precisely. Installation was a breeze with all the necessary fittings included, saving me time and hassle.
Cons
While I love the performance, I did notice that the unit requires proper ventilation, which may not be ideal for everyone. Additionally, in colder climates, it’s essential to drain residual water to prevent freezing, which adds a bit of maintenance to the process. However, these minor drawbacks do not overshadow the overall value this water heater provides.
This natural gas water heater is a reliable choice for anyone looking to upgrade their hot water system. Its combination of efficiency, durability, and user-friendly features makes it a worthwhile investment for any household.
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Faq about best rated gas water heaters:
1:What are the benefits of gas water heaters?
Gas water heaters heat water faster and often cost less to operate than electric models, providing efficient hot water supply.
2:How do I choose the best gas water heater?
Consider factors like capacity, energy efficiency, recovery rate, and warranty. Look for models with high customer ratings and good reviews.
3:What is the average lifespan of a gas water heater?
On average, a gas water heater lasts between 8 to 12 years, depending on maintenance and usage.
4:Are there any safety concerns with gas water heaters?
Yes, ensure proper ventilation to prevent gas leaks and carbon monoxide buildup. Regular maintenance checks are essential for safety.
5:What is the energy efficiency of gas water heaters?
Gas water heaters typically have higher energy efficiency ratings than electric ones, often measured by their Energy Factor (EF).
6:Can I install a gas water heater myself?
It’s recommended to hire a professional for installation to ensure safety and compliance with local codes.
7:What brands are considered the best for gas water heaters?
Top brands include Rheem, A.O. Smith, and Bradford White, known for reliability and performance.
Conclusion
The Rinnai RX199iN Tankless Water Heater exemplifies unparalleled efficiency and innovation, offering instantaneous hot water while conserving energy. Its compact design and advanced technology make it an exemplary choice for modern households seeking reliability and performance.
Similarly, the Rheem High Efficiency Outdoor Tankless Water Heater stands out for its robust durability and superior energy-saving capabilities. With its weather-resistant construction and exceptional flow rate, it caters adeptly to various outdoor applications, ensuring a seamless supply of hot water.