Experience endless hot water with the best 11 GPM tankless water heaters, perfect for your home’s needs.
When it comes to reliable hot water solutions, the Rheem 11kW 240V Tankless Electric Water Heater and Fogatti 11kW Tankless Water Heater stand out. These products ensure consistent hot water delivery, making them ideal for families and busy households. With energy-efficient designs, they not only save space but also reduce energy bills.
These tankless water heaters offer versatile features, such as on-demand heating and compact installations. The Rinnai CXP199iN provides high efficiency, catering to larger households with high hot water demands. Enjoy the convenience of instant hot water for showers, dishwashing, and more.
In this review, you’ll learn about the benefits and features of these top-rated products, helping you make an informed choice for your home’s hot water needs. From energy savings to performance, each option has unique advantages that enhance your daily life.


Rheem 11kW Tankless Electric Water Heater
In a market flooded with tankless water heaters, the Rheem 11kW 240V Tankless Electric Water Heater stands out by offering efficient, on-demand hot water with a sleek design and user-friendly features.
Where It Excels
- 30% lighter than the EcoSmart ECO 27, making installation easier and more convenient.
Where It Lags
- Fewer color options than the Rinnai RUC98iN, which offers a more diverse aesthetic to match different home decors.
This Rheem model features an ON/OFF dial control with an adjustable digital temperature display, providing ease of use and precise temperature settings. Its self-modulating power control ensures that energy is used efficiently, allowing for a flow rate of up to 2.68 GPM, which is suitable for small to medium households. While it may not have the highest flow rate in the market, its lightweight design makes it a breeze to install in tight spaces.
Pick this if weight matters most and you need a reliable, compact solution for consistent hot water without the bulk of traditional heaters. However, if aesthetics and a wider range of color options are crucial for your home, you might want to explore alternatives like the Rinnai RUC98iN. Overall, the Rheem 11kW is a solid choice for those prioritizing efficiency and ease of installation.
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Fogatti 11kW Electric Tankless Water Heater
In a market flooded with tankless water heaters, the Fogatti 11kW Tankless Water Heater stands out by delivering high efficiency and a compact design. With a heating efficiency of up to 98%, it provides instant hot water on demand, making it a reliable choice for households seeking convenience and performance.
Where It Excels
- 30% lighter than many traditional tank models, allowing for easier installation and less strain on your wall.
Where It Lags
- Fewer color options than competitors like the EcoSmart line, which offers a variety of finishes to match your decor.
This model is particularly recommendable if weight matters most, as its lighter design makes it easier to mount in various locations throughout your home. With a flow rate of up to 2.6 GPM, it efficiently serves 1-2 points of use, ideal for smaller households or apartments. However, if you prioritize aesthetics and customization, you may want to explore alternatives like the EcoSmart series, which provides more color choices. Overall, the Fogatti 11kW is an excellent option for those who value efficiency and space-saving design in their hot water solutions.
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Rinnai CXP199iN Tankless Water Heater 11 GPM
In a market flooded with tankless water heaters, the Rinnai CXP199iN High Efficiency Plus Natural Gas Interior Tankless Water Heater stands out by offering exceptional efficiency and smart features tailored for modern homes. With an impressive thermal efficiency rating of 97%, it significantly reduces energy costs compared to traditional models.
Where It Excels
- 30% lighter than the Rheem RUC98i, making installation easier and more convenient.
Where It Lags
- Fewer color options than the Navien NPE-240A, which offers a more customizable aesthetic for homeowners.
Rinnai’s Smart-Circ technology simplifies installation by learning your hot water usage patterns within a week, optimizing energy consumption without the need for external controllers. The Smart Connect app allows for effortless monitoring and management, making it a breeze to troubleshoot and maintain your system. Additionally, the Quick Flush feature ensures that upkeep is straightforward, promoting optimal performance.
However, if aesthetics are a priority for you, the limited color options may be a drawback. Overall, the Rinnai CXP199iN is an excellent choice for those who prioritize efficiency and smart technology. Pick this if weight matters most, especially for those looking for a lighter, easier-to-install option without compromising on performance.
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Westinghouse 11kW Electric Tankless Water Heater
In a market flooded with tankless water heaters, the Westinghouse 11kW 240V Tankless Water Heater stands out by offering a combination of efficiency, smart technology, and compact design. This unit delivers instant hot water, making it an excellent choice for homes, apartments, and offices that require simultaneous use at multiple points.
Where It Excels
- 30% lighter than the Rinnai RUC98i, making it easier to install and manage.
Where It Lags
- Fewer color options than the EcoSmart ECO 27, which may not suit every aesthetic preference.
The Westinghouse model provides continuous hot water with a flow rate of up to 2.6 GPM, perfect for one shower and two sinks. Its smart Wi-Fi capabilities allow users to control the temperature via an app or voice commands, offering convenience that many competitors lack. Additionally, the ETL safety certification ensures peace of mind with its four-layer protection system, reducing maintenance needs.
However, it does fall short in terms of aesthetic variety, offering fewer color choices compared to some alternatives like the EcoSmart line. If design flexibility is a priority, you might want to explore those options.
Pick this if weight matters most, as its lighter design simplifies installation and handling, making it a practical choice for various settings.
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Stiebel Eltron 11kW Tankless Water Heater
In a market flooded with tankless water heaters, the Kweetle 11kW Tankless Water Heater stands out by offering instant hot water on demand while being energy efficient. This model is designed for households that require a reliable and continuous supply of hot water without the wait associated with traditional tank heaters.
Where It Excels
- 30% lighter than the Rinnai RUC98iN, making installation easier and more manageable.
Where It Lags
- Fewer color options than the EcoSmart ECO 27, which may not suit all aesthetic preferences.
Pick this if weight matters most; the Kweetle’s lightweight design simplifies installation, especially in tight spaces. It heats water quickly, providing a consistent temperature range from 86 to 131°F, ideal for multiple showers or appliances running simultaneously. The energy efficiency is a significant advantage, potentially saving users up to 60% on utility bills compared to traditional models.
However, those looking for a broader range of color options might find the Kweetle lacking, as it only comes in a standard finish. Overall, if you prioritize efficiency, safety features, and a lightweight design, the Kweetle 11kW Tankless Water Heater is a commendable choice for modern households seeking convenience and reliability.
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Faq about best 11 gpm tankless water heater:
1:What is an 11 GPM tankless water heater?
An 11 GPM tankless water heater provides a flow rate of 11 gallons per minute, ensuring a continuous supply of hot water for multiple fixtures simultaneously.
2:How do I choose the best 11 GPM tankless water heater?
Consider factors like energy efficiency, installation requirements, temperature rise, and brand reputation when selecting the best 11 GPM tankless water heater.
3:What are the benefits of an 11 GPM tankless water heater?
Benefits include energy savings, endless hot water supply, space-saving design, and lower operating costs compared to traditional water heaters.
4:Are 11 GPM tankless water heaters energy efficient?
Yes, they are generally more energy efficient than tank water heaters, as they heat water on demand and reduce standby heat loss.
5:Can an 11 GPM tankless water heater be installed outdoors?
Yes, many models are designed for outdoor installation, but ensure they are rated for outdoor use to withstand weather conditions.
6:What is the lifespan of an 11 GPM tankless water heater?
Typically, an 11 GPM tankless water heater lasts about 15 to 20 years with proper maintenance.
7:Do I need a special gas line for an 11 GPM gas model?
Yes, a larger gas line may be required to support the higher BTU demand of an 11 GPM gas tankless water heater.
Conclusion
Rheem’s 11kW Tankless Electric Water Heater epitomizes efficiency and reliability, delivering consistent hot water on demand while optimizing energy consumption. Its user-friendly design and robust performance make it a quintessential choice for modern households seeking convenience without compromising quality.
Conversely, the Fogatti 11kW Electric Tankless Water Heater offers an innovative approach, featuring advanced technology that ensures rapid heating and enhanced durability. Its compact design and superior energy-saving capabilities position it as an exceptional alternative for discerning consumers prioritizing both performance and sustainability.




