Natural gas tankless water heaters are becoming an increasingly popular choice for homeowners. Unlike traditional water heaters with bulky storage tanks, tankless models heat water on demand, providing a continuous supply of hot water without wasting energy on maintaining a tank full of water. Natural gas tankless water heaters are particularly efficient, environmentally friendly, and cost-effective. In this article, we will review the 8 best natural gas tankless water heaters in 2024 to help you choose the right one for your home.
8 Best Tankless Water Heaters Natural Gas in 2024
1. Rinnai RU199iN Ultra Series Indoor Natural Gas Tankless Water Heater
Rinnai has a reputation for manufacturing some of the best tankless water heaters, and the RU199iN Ultra Series is no exception. This model is designed for indoor use and offers high efficiency with a powerful 199,000 BTU heating capacity. It can deliver up to 11 GPM (gallons per minute), making it ideal for larger homes with multiple bathrooms.
Key Features:
High Efficiency: Certified with an Energy Factor of 0.93, meaning it converts nearly all its energy into heating water.
Compact Design: Wall-mounted and space-saving, ideal for small utility rooms.
Wi-Fi Compatibility: Comes with the option to control and monitor the heater remotely through a mobile app.
Condensing Technology: Maximizes heat efficiency by utilizing exhaust heat to preheat incoming water.
Why Choose It?
The Rinnai RU199iN is perfect for larger families or homes that demand a lot of hot water simultaneously. Its efficiency and compact design make it a premium choice for those who value performance and energy savings.
2. Takagi T-H3-DV-N Condensing High-Efficiency Natural Gas Tankless Water Heater
The Takagi T-H3-DV-N is a highly efficient condensing tankless water heater, designed for homes that require a consistent and reliable hot water supply. With a heating capacity of up to 199,000 BTU and a maximum flow rate of 10 GPM, this unit is suitable for larger homes with multiple fixtures.
Key Features:
Condensing Technology: Provides higher efficiency by capturing heat from exhaust gases.
Direct Venting: Ensures safe operation by venting gases directly outdoors.
High Flow Rate: Delivers up to 10 gallons of hot water per minute.
Energy Star Certified: Helps reduce energy consumption and utility bills.
Why Choose It?
For homeowners looking for a high-performance water heater that is both efficient and environmentally friendly, the Takagi T-H3-DV-N is an excellent choice. Its high flow rate ensures plenty of hot water for simultaneous usage in multiple bathrooms or appliances.
3. Noritz NRC66DVNG Indoor Condensing Natural Gas Tankless Water Heater
Noritz has a well-established reputation for creating energy-efficient and reliable water heaters, and the NRC66DVNG is a standout model. It is designed to be used indoors and features condensing technology to maximize energy efficiency.
Key Features:
Compact Design: Suitable for smaller homes or apartments where space is limited.
Energy Efficiency: Delivers a 0.91 Energy Factor for greater energy savings.
Low NOx Emissions: Environmentally friendly with low nitrogen oxide emissions.
Easy Installation: Designed with a user-friendly interface for installation and operation.
Why Choose It?
The Noritz NRC66DVNG is a great choice for smaller homes or apartments, offering reliable hot water and high energy efficiency. Its compact size and eco-friendly emissions make it a smart investment for those looking to reduce their environmental footprint.
4. Rheem RTGH-95DVLN Direct Vent Natural Gas Tankless Water Heater
Rheem is a trusted brand in the water heater industry, and their RTGH-95DVLN model is one of the top choices for homeowners looking for efficiency and reliability. This unit is designed for indoor use and features direct venting for safety.
Key Features:
High Flow Rate: Delivers up to 9.5 GPM of hot water.
Condensing Technology: Increases efficiency by using exhaust gases to preheat water.
Self-Diagnostic System: Monitors performance and alerts users to potential issues.
Energy Star Certified: Helps reduce energy usage and lower utility bills.
Why Choose It?
The Rheem RTGH-95DVLN is ideal for mid-sized to large households. Its high flow rate ensures that you’ll have plenty of hot water even when multiple fixtures are being used at the same time. Additionally, the self-diagnostic system makes it easier to maintain.
5. Eccotemp i12-NG Indoor Natural Gas Tankless Water Heater
The Eccotemp i12-NG is a more compact and affordable option, perfect for homes with lower hot water demands. This model is designed for indoor installation and features a modern, sleek design that fits well in smaller spaces.
Key Features:
Sleek Design: Compact and stylish, perfect for small spaces or modern homes.
LED Display: Easy-to-read display for temperature control and monitoring.
Energy Efficient: Heats water only when needed, reducing energy consumption.
Child Lock Feature: Adds an extra layer of safety for families with children.
Why Choose It?
The Eccotemp i12-NG is an affordable and efficient solution for smaller households or apartments. Its sleek design and LED display make it both functional and aesthetically pleasing, while its energy-efficient operation helps keep utility bills low.
6. Rinnai V65IN Tankless Water Heater
The Rinnai V65IN is a mid-range tankless water heater that offers great value for homeowners who need reliable performance but don’t require an extremely high flow rate. It’s designed for indoor use and offers a 6.5 GPM flow rate, making it suitable for small to mid-sized homes.
Key Features:
Energy Efficient: Uses advanced technology to minimize energy usage while maintaining performance.
Compact Design: Fits into small spaces, making it ideal for apartments or homes with limited utility room.
Durable Construction: Built to last with quality materials that ensure long-term reliability.
Temperature Control: Offers precise temperature adjustment for comfort and convenience.
Why Choose It?
The Rinnai V65IN provides excellent efficiency and performance for smaller homes or households that don’t require high water usage. Its reliable construction and moderate flow rate make it a cost-effective and dependable choice.
SEE ALSO: Why Is It Beneficial to Use Natural Gas?
7. Bosch Greentherm 9000 Series Natural Gas Tankless Water Heater
The Bosch Greentherm 9000 Series is a premium tankless water heater that offers impressive performance and energy efficiency. This model is designed for both residential and commercial use, making it highly versatile.
Key Features:
High Efficiency: Features an Energy Star certification, ensuring low energy consumption.
Wi-Fi Enabled: Allows users to control and monitor the unit remotely via a smartphone app.
Durable Heat Exchanger: Made from high-quality materials for long-lasting performance.
Advanced Venting Options: Flexible venting options for easier installation in various spaces.
Why Choose It?
The Bosch Greentherm 9000 Series is a top-of-the-line option for those who want the best in energy efficiency and smart technology. Its Wi-Fi capability allows users to adjust and monitor the unit remotely, providing added convenience.
8. Camplux CA528-NG Natural Gas Tankless Water Heater
The Camplux CA528-NG is designed for larger homes or households with higher hot water demands. With a flow rate of up to 5.28 GPM, this unit can provide hot water for multiple fixtures simultaneously. It is also equipped with modern features for energy savings and convenience.
Key Features:
Energy Efficient: Utilizes natural gas efficiently to heat water on demand.
Multiple Safety Features: Includes flame failure devices and anti-freeze protection for safe operation.
LED Display: Allows for easy temperature control and monitoring.
Compact Design: Can be installed in tight spaces, making it versatile for various home sizes.
Why Choose It?
The Camplux CA528-NG is an excellent choice for larger households that need reliable hot water for multiple fixtures. Its energy efficiency, safety features, and compact design make it a well-rounded option for those seeking comfort and safety.
Conclusion
Choosing the best natural gas tankless water heater for your home in 2024 depends on your household’s hot water needs, energy efficiency preferences, and installation requirements. The options reviewed in this article offer a range of features, from high flow rates for large homes to compact, energy-saving designs for smaller spaces. Brands like Rinnai, Takagi, and Rheem provide top-of-the-line models with advanced technology, while more budget-friendly options like Eccotemp and Camplux offer excellent value for smaller households. Consider your hot water usage, available installation space, and budget when making your decision. A natural gas tankless water heater is a long-term investment in comfort and energy efficiency.
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