For homeowners, an electric tankless water heater saves space and energy without compromising comfort.
The electric tankless water heater revolutionizes hot water access, making it an essential for modern homes. The **Rheem 18kW 240V Tankless Electric Water Heater** stands out for its efficiency and reliability.
From small apartments to large family homes, these heaters adapt effortlessly to your hot water needs, ensuring you never run out.
We detail pros, cons, and hidden perks ahead.
Rheem 18kW Tankless Electric Water Heater
The adjustable valve sets the Rheem 18kW 240V Tankless Electric Water Heater apart from its competitors. This innovative feature allows for precise temperature control, ensuring optimal performance tailored to your hot water demands. Constructed with durable copper immersion two heating elements, this unit boasts a flow rate of up to 4.4 GPM, making it suitable for various household needs. Its compact design features dimensions that facilitate easy installation, with bottom 3/4 inch NPT water connections for straightforward setup.
Key Advantages
- The 316-grade stainless steel components ensure resistance to corrosion, enhancing the longevity of the unit.
- Advanced self-modulation technology automatically adjusts power based on hot water demand, optimizing energy efficiency.
- The external digital thermostatic control with LED display provides +/- 1 degree accuracy, allowing for precise temperature adjustments.
Limitations
- Not compatible with traditional tank water heaters, requiring a complete system overhaul for installation.
- Requires a minimum electrical service of 240V, which may necessitate electrical upgrades in some homes.
Best for outdoor enthusiasts needing reliable hot water access without the bulk of traditional systems, the Rheem 18kW Tankless Electric Water Heater excels in efficiency and performance, making it a top choice for modern households.
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EcoSmart ECO 11 Electric Tankless Water Heater
The EcoSmart ECO 11 Electric Tankless Water Heater stands out with its patented self-modulating technology, ensuring endless on-demand hot water while optimizing energy use. Constructed from high-quality materials, this unit measures 11.5 x 8 x 3.75 inches, making it 90% smaller than traditional tank heaters, allowing for versatile installation options, whether on the wall or at the point of use.
Key Advantages
- The 316-grade stainless steel components resist corrosion, enhancing durability.
- With a 99% thermal energy efficiency, it heats water only when needed, significantly reducing energy waste.
- It provides a flow rate between 1.3 and 3.1 gallons-per-minute, depending on inlet water temperature, making it suitable for various low-flow applications.
Limitations
- Not compatible with high-demand applications requiring simultaneous hot water for multiple outlets.
- Requires a dedicated electrical circuit due to a maximum amperage draw of 54 A.
This model is best for outdoor enthusiasts or anyone needing efficient hot water solutions for a bathroom, small sink, or breakroom. Its compact design and energy-saving features make it an excellent choice for those looking to maximize performance without compromising space.
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ORBEK Natural Gas Tankless Water Heater
The adjustable valve sets the Orbek Natural Gas Tankless Water Heater apart from its competitors. With a robust output of 100,000 BTU and a flow rate of up to 4.3 GPM, this unit is designed for efficient, on-demand hot water delivery, suitable for simultaneous use across 2-3 fixtures. Its compact dimensions of 20.5″H x 13.0″L x 7.0″W allow for easy installation in tight spaces, making it an ideal choice for homes with limited room.
Key Advantages
- The unit is crafted from **316-grade stainless steel**, ensuring excellent corrosion resistance and durability. The **high-quality oxygen-free copper** heat exchanger enhances heat transfer efficiency, while the built-in microchip adjusts heating power 20,000 times per second, maintaining a stable water temperature within 1°F.
Limitations
- It is **not compatible** with certain venting systems, and the necessary vents and water valve kits must be purchased separately. Installation is recommended to be performed by a professional for optimal performance and safety.
Best for outdoor enthusiasts and homeowners seeking a reliable, energy-efficient solution for their hot water needs, the Orbek tankless water heater combines advanced technology with a compact design, making it a standout choice in the market.
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ORBEK 14kW Electric Tankless Water Heater
The adjustable valve sets the ORBEK 14kW Tankless Water Heater apart from competitors in the market. Constructed from 316-grade stainless steel, this unit resists corrosion, ensuring longevity and reliability. With dimensions of 14.2″H x 9.5″L x 3.1″W, it fits seamlessly into various spaces, making it ideal for homes with limited installation areas.
Key Advantages
- The heater provides an impressive 3.38 GPM of on-demand hot water, capable of serving 2-3 points of use simultaneously. This is achieved through advanced water-electricity separation technology, enhancing energy efficiency and potentially reducing electricity costs by up to 60% compared to traditional tank models.
Limitations
- Not compatible with 120V systems; installation requires a 240V/60AMP two-pole breaker and appropriate wiring.
Best for outdoor enthusiasts needing a reliable and efficient hot water solution, the ORBEK 14kW Tankless Water Heater is equipped with comprehensive safety features, including leakage protection and over-temperature safeguards. The built-in chip ensures stable temperature control, adjusting heating power 20,000 times per second for a consistent experience. The LED digital display allows for easy temperature adjustments between 86°F and 140°F, making it user-friendly. Overall, this unit excels in providing endless hot water while optimizing space and energy use.
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Rheem RTEX-24 Electric Tankless Water Heater
The adjustable valve sets the Rheem RTEX-24 24kW 240V Electric Tankless Water Heater apart from its competitors. Constructed from durable materials, this unit features a sleek gray finish and dimensions of 18.5 x 14 x 3.75 inches, making it a compact solution for various installations. It requires a robust electrical setup, specifically 3 x 40 AMP Double Pole Breakers, and is best suited for homes with a 200 AMP service.
Key Advantages
- The 316-grade stainless steel heating elements resist corrosion, ensuring longevity and consistent performance.
Limitations
- Not compatible with traditional tank systems, which may limit options for users with existing setups.
With proven performance, the Rheem RTEX-24 delivers continuous hot water for the entire home, adjusting easily to geographic variations in groundwater temperature. Its ON/OFF dial control and adjustable digital temperature display allow for precise temperature settings in 1-degree increments from 80 to 140 degrees Fahrenheit. This feature enhances user convenience and efficiency.
Best for outdoor enthusiasts needing reliable hot water access in various conditions, the Rheem RTEX-24 is an excellent choice for those seeking an efficient, space-saving solution. Its energy-saving design and lack of venting requirements further enhance its appeal, making it a standout option in the tankless water heater market.
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Faq about Electric Tankless Water Heater:
1: What is an electric tankless water heater?
An electric tankless water heater is a device that heats water on demand without the use of a storage tank, providing hot water only when needed.
2: How does an electric tankless water heater work?
This system uses electric coils to heat water as it flows through the unit, ensuring a continuous supply of hot water.
3: What are the benefits of using an electric tankless water heater?
Benefits include energy efficiency, space-saving design, and an endless supply of hot water, reducing energy costs compared to traditional heaters.
4: Are electric tankless water heaters easy to install?
Installation is generally straightforward, but it may require professional assistance for optimal performance and compliance with local codes.
5: How much maintenance do electric tankless water heaters require?
These units require minimal maintenance, including occasional descaling to prevent mineral buildup, especially in hard water areas.
6: What is the lifespan of an electric tankless water heater?
Typically, an electric tankless water heater lasts 15 to 20 years, depending on usage and maintenance practices.
7: Can electric tankless water heaters provide enough hot water for large households?
Yes, but it may require multiple units or a higher capacity model to meet the demands of larger households effectively.
Conclusion
The Rheem 18kW Tankless Electric Water Heater exemplifies efficiency and reliability, delivering an impressive flow rate suitable for various household needs. Its compact design and advanced technology ensure a continuous supply of hot water while minimizing energy consumption.
Conversely, the EcoSmart ECO 11 Electric Tankless Water Heater stands out for its remarkable energy savings and user-friendly interface. Its ability to provide instant hot water on demand, coupled with a sleek profile, makes it an ideal choice for those seeking both functionality and space efficiency.