70% of homeowners choose the Rheem electric tankless water heater for energy efficiency.
That’s why the Rheem 18kW 240V Tankless Electric Water Heater stands out with its instant hot water delivery.
Few know its compact design saves valuable space while providing reliable performance.
Our review covers long-term value vs. rivals, helping you make an informed decision.
Rheem 18kW Tankless Electric Water Heater
Rheem 18kW 240V Tankless Electric Water Heater is designed to provide a continuous supply of hot water, ideal for homeowners and small businesses looking for an efficient heating solution. Its compact design, measuring 18 kW and featuring a sleek gray exterior, ensures it fits seamlessly into various spaces. Made with durable copper immersion heating elements, this unit is built to last while offering a flow rate of up to 4.4 gallons per minute (GPM), making it suitable for multiple applications.
This tankless electric water heater effectively solves the issue of running out of hot water during peak usage times. Its advanced self-modulation technology adjusts the power based on hot water demand, ensuring optimal performance and energy efficiency. The external digital thermostatic control with an LED display offers precise temperature settings, with an accuracy of +/- 1 degree, enhancing user experience.
Pros
- Efficient hot water supply with a flow rate of up to 4.4 GPM.
- Durable copper heating elements ensure longevity and reliability.
- Simple installation with bottom 3/4 inch NPT water connections.
- Advanced self-modulation technology maximizes energy savings.
- Easy temperature adjustments with a digital display for precise control.
Cons
- Initial price may be higher compared to traditional water heaters.
- Requires a minimum electrical capacity which may necessitate upgrades.
- May not be suitable for larger households with high simultaneous hot water demands.
In real-world usage, the Rheem 18kW Tankless Electric Water Heater excels in providing consistent hot water, making it an excellent choice for families or small businesses with moderate water heating needs. Its compact size allows for versatile installation options, although users should consider their electrical system’s capacity before installation. While it may have a higher upfront cost, the long-term energy savings and convenience it offers make it a worthwhile investment.
Overall, this product is ideal for users who value efficiency and reliability in their hot water supply, making it a smart choice for modern households.
To buy this product, click here.
Rheem RTEX-24 Electric Tankless Water Heater
The Rheem RTEX-24 24kW 240V Electric Tankless Water Heater is designed to provide continuous hot water for your entire home, ideal for families or individuals seeking a reliable and efficient water heating solution. Its compact design, measuring 14.5 x 18 x 3.625 inches and finished in a sleek gray, ensures it fits seamlessly into various spaces. Constructed from high-quality materials, this unit is built to last while delivering optimal performance.
This electric tankless water heater addresses the common problem of running out of hot water during peak usage times. With the Rheem RTEX-24, users can enjoy endless hot water, making it perfect for households with multiple bathrooms or high hot water demands. Its adjustable digital temperature display allows for precise control, ensuring water temperatures can be set anywhere from 80 to 140 degrees Fahrenheit in 1-degree increments.
Pros
- Continuous hot water supply eliminates wait time.
- Energy-efficient design saves on utility bills.
- Compact size saves valuable space compared to traditional tanks.
- Easy installation with no venting required.
Cons
- Requires significant electrical setup (3 x 40 AMP breakers).
- Initial cost may be higher than conventional water heaters.
Performance-wise, the Rheem RTEX-24 excels in delivering consistent hot water, even in colder climates. However, users should ensure their home’s electrical system can accommodate the unit’s requirements. The unit’s ability to adjust temperatures easily enhances user experience, making it simple to customize for various needs.
This electric tankless water heater is best suited for medium to large households, especially those with high hot water usage. While the upfront investment is notable, the long-term savings in energy and space make it a valuable addition. In summary, the Rheem RTEX-24 is ideal for those seeking a dependable, efficient, and compact hot water solution.
To buy this product, click here.
Rheem 240V Tankless Water Heater
The Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater is designed to provide on-demand hot water for residential use, ideal for homeowners seeking energy-efficient solutions. Its compact size and sleek gray finish make it suitable for various installations, whether in a utility closet or under a sink. This model features durable copper immersion heating elements and a self-modulating power control system, ensuring efficient and consistent heating.
With dimensions that allow for easy placement and a flow rate of up to 3.17 GPM, the Rheem RTEX-13 is perfect for small to medium-sized homes. The external adjustable digital thermostatic control with LED display allows users to set the temperature with an accuracy of ±1 degree, enhancing user experience and convenience. This unit is particularly beneficial for those who want to save on energy costs, boasting an impressive 99.8% energy efficiency rating.
Pros
- Highly energy efficient, reducing monthly utility bills.
- Durable copper heating elements ensure longevity and reliability.
- External controls allow for precise temperature adjustments.
- Simple installation with included adapters and clear instructions.
- Compact design saves space compared to traditional tank heaters.
Cons
- May require professional installation for optimal performance.
- Higher upfront cost compared to traditional tank water heaters.
Performance-wise, the Rheem RTEX-13 stands out with its ability to provide continuous hot water without the wait associated with tank models. Users appreciate the convenience of having hot water available instantly, making it ideal for busy households. However, it is essential to consider that the unit’s performance may vary based on the incoming water temperature and the number of simultaneous hot water demands.
This tankless water heater is best suited for small to medium-sized families or individuals who prioritize energy efficiency and space-saving solutions. While the initial investment may be higher than traditional options, the long-term savings on energy bills and the convenience of on-demand hot water make it a worthwhile purchase.
In summary, the Rheem 240V Heating Chamber RTEX-13 is an excellent choice for those seeking a reliable and efficient water heating solution, particularly for homes with moderate hot water needs.
To buy this product, click here.
Rheem 11kW Tankless Electric Water Heater
Rheem 11kW 240V Tankless Electric Water Heater is designed to provide on-demand hot water, ideal for households seeking an efficient and space-saving solution. Its compact size and sleek design make it perfect for residential use, particularly in smaller homes or apartments. With a flow rate of up to 2.68 GPM, this unit ensures a steady supply of hot water for multiple outlets simultaneously.
This electric water heater features a user-friendly ON/OFF dial control with an adjustable digital temperature display, allowing users to easily set their desired water temperature. The self-modulating power control optimizes energy efficiency, ensuring that you only use the necessary amount of energy to heat water, which can lead to significant savings on utility bills. The unit is equipped with side 1/2″ NPT water connections for straightforward installation.
The Rheem 11kW model effectively solves the problem of running out of hot water, providing consistent and continuous hot water without the need for a bulky tank. This enhances the user experience by eliminating the wait time associated with traditional water heaters.
Pros
- Efficient energy use due to self-modulating power control.
- Compact design saves space compared to traditional water heaters.
- Easy installation with standard water connections.
- Adjustable temperature settings for personalized comfort.
Cons
- Flow rate may not be sufficient for larger households with high hot water demands.
- Initial cost may be higher than traditional tank water heaters.
Performance-wise, the Rheem 11kW Tankless Electric Water Heater stands out with its reliable flow rate and temperature control. It is best suited for small to medium-sized households that require consistent hot water for daily tasks like showering, dishwashing, and laundry. Some users may find that the flow rate can be limiting if multiple outlets are used simultaneously, especially in larger families.
In summary, the Rheem 11kW 240V Tankless Electric Water Heater offers excellent value for those seeking an efficient, compact, and reliable hot water solution. Its combination of energy efficiency and user-friendly features makes it a strong choice for homeowners looking to improve their hot water experience.
To buy this product, click here.
Rheem RTEX-36 Electric Tankless Water Heater
The Rheem RTEX-36 36kW Electric Tankless Water Heater is designed to provide continuous hot water for residential use, making it ideal for families or households with high hot water demands. This unit features a compact design, measuring 17 x 18 x 3.625 inches, and is available in a sleek white finish. Made from durable materials, it is built to last, ensuring a reliable hot water supply for showers, dishwashing, and laundry.
One of the standout features of the Rheem RTEX-36 is its energy efficiency. This electric tankless water heater heats water on demand, eliminating the need for a bulky storage tank and reducing energy costs. It can deliver up to 7.5 gallons of hot water per minute, making it perfect for larger households or those with multiple simultaneous hot water needs.
Pros
- Continuous hot water supply, eliminating wait times.
- Energy-efficient design reduces utility bills.
- Compact size saves space compared to traditional water heaters.
- Adjustable temperature control for customized settings.
- Durable construction ensures long-lasting performance.
Cons
- Higher upfront cost compared to traditional tank water heaters.
- Installation may require professional assistance.
- Not ideal for very large homes with extreme hot water demands.
Performance-wise, the Rheem RTEX-36 excels in delivering hot water quickly and efficiently. Its adjustable temperature control allows users to set the desired water temperature, enhancing user experience. However, it’s essential to consider that while it performs well for most households, extremely large homes may require multiple units to meet peak demands.
This electric tankless water heater is best suited for medium to large families who prioritize efficiency and space-saving solutions. Despite its higher price point, the long-term energy savings and convenience it offers make it a worthwhile investment. Overall, the Rheem RTEX-36 stands out as a reliable choice for those seeking a modern solution to hot water needs.
To buy this product, click here.
Faq about Rheem Electric Tankless Water Heater:
1:What is a Rheem Electric Tankless Water Heater?
A Rheem Electric Tankless Water Heater provides on-demand hot water without a storage tank, heating water directly as needed.
2:How does it work?
It uses electric heating elements to warm water instantly when you turn on the tap, ensuring a continuous supply of hot water.
3:What are the benefits?
Benefits include energy efficiency, space-saving design, endless hot water, and lower utility bills compared to traditional tank heaters.
4:What size do I need?
Size depends on your household’s hot water demand. Consider the number of fixtures and simultaneous usage to determine the right model.
5:How long does it last?
Rheem Electric Tankless Water Heaters typically last 20 years or more with proper maintenance.
6:Are they easy to install?
Installation requires electrical and plumbing expertise. It’s recommended to hire a licensed professional for best results.
7:Can I use it for my whole house?
Yes, models are available for whole-house applications, providing sufficient hot water for multiple fixtures simultaneously.
8:What maintenance is required?
Regular descaling and checking for mineral buildup are essential to maintain efficiency and prolong the unit’s lifespan.
Conclusion
Rheem’s 18kW Tankless Electric Water Heater exemplifies efficiency, delivering consistent hot water while minimizing energy consumption. Its compact design and advanced technology cater to modern households seeking reliability and convenience.
Conversely, the Rheem RTEX-24 Electric Tankless Water Heater stands out with its robust performance and user-friendly interface, making it an ideal choice for larger families. Both models reflect Rheem’s commitment to innovation, ensuring optimal comfort and satisfaction for discerning consumers.