Frustrated by running out of hot water? The Navien electric tankless water heater delivers endless hot water instantly.
Introducing the **Rheem 18kW Tankless Electric Water Heater**, perfect for *medium-sized households needing reliable hot water*. This unit ensures you never run out, even during peak usage times.
Plus, its compact design saves valuable space in your home, making it a great choice for smaller bathrooms or kitchens.
We tested durability, ease of use, and more to ensure you get the best performance.
Rheem 18kW Tankless Electric Water Heater
The adjustable valve sets the Rheem 18kW 240V Tankless Electric Water Heater apart from its competitors. This feature allows users to fine-tune their hot water output, ensuring optimal performance tailored to specific needs. Constructed from durable materials, it includes copper immersion two heating elements that are field serviceable, enhancing longevity and ease of maintenance. With dimensions of 16.5 x 12.5 x 4.8 inches, it is compact enough for various installations.
Key Advantages
- The 316-grade stainless steel construction resists corrosion, ensuring a longer lifespan in varying water conditions.
- Its flow rate of up to 4.4 GPM is ideal for households with moderate hot water demands.
- The external digital thermostatic control with LED display provides +/1 degree accuracy, allowing precise temperature management.
- Simple installation is facilitated by bottom 3/4 inch NPT water connections, making it accessible for DIY enthusiasts.
Limitations
- Not compatible with traditional tank systems, which may limit options for some users looking to upgrade.
- Requires a minimum electrical supply, which could necessitate additional electrical work in some homes.
Best for outdoor enthusiasts needing reliable hot water on demand, the Rheem 18kW provides efficiency and convenience, making it a strong contender in the tankless water heater market.
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ORBEK 14kW Electric Tankless Water Heater
The adjustable valve sets the Orbek 14kW Tankless Water Heater apart from its competitors. This electric unit, designed for 240 volts, delivers an impressive flow rate of up to 3.38 GPM, making it suitable for 2-3 points of use simultaneously. Constructed from 316-grade stainless steel, the heater resists corrosion and ensures durability. Its compact dimensions of 14.2″H x 9.5″L x 3.1″W allow for easy installation in tight spaces.
Key Advantages
- High energy efficiency is achieved through water-electricity separation, potentially reducing electricity costs by up to 60% compared to traditional tank-style heaters.
Limitations
- Not compatible with conventional 120V systems, requiring specific electrical upgrades for installation.
Best for outdoor enthusiasts needing a reliable source of hot water for showers or cleaning tasks, the Orbek tankless water heater offers rapid heating in just 3 seconds. The built-in chip ensures stable temperature control, adjusting heating power 20,000 times per second to maintain water temperature within 1°F. The LED digital display provides real-time temperature readouts and easy adjustments between 86°F and 140°F. With comprehensive safety features, including leakage and over-temperature protection, this model is a solid choice for those seeking efficiency and reliability in hot water supply.
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Rheem RTEX-24 24kW Electric Water Heater
The adjustable valve sets the Rheem RTEX-24 24kW 240V Electric Tankless Water Heater apart from its competitors. This unit features a durable construction with a sleek gray finish, designed for longevity and efficiency. It has dimensions of 18.5 x 14.5 x 4.5 inches, making it compact enough for various installations. The heater requires 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 components resist corrosion, ensuring durability and longevity in various water conditions.
- The ON/OFF dial control with an adjustable digital temperature display allows precise adjustments in 1-degree increments, providing flexibility for user preferences.
- Its tankless design delivers continuous hot water, making it ideal for households with high demand.
- Space-saving design eliminates the need for bulky tanks, enhancing home efficiency.
Limitations
- Not compatible with homes that lack sufficient electrical service or breaker panel space, as it requires a robust electrical setup.
- Performance may vary based on geographic location and ground water temperature, impacting the heater’s efficiency.
This product is best for outdoor enthusiasts needing a reliable and efficient hot water solution for their homes or recreational vehicles. Its advanced features make it a top choice for those seeking performance and convenience.
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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 efficient and continuous hot water supply. This unit operates at 13KW at 240 volts and is designed for optimal performance in various low-flow applications. With dimensions of 11.5 x 8 x 3.75 inches, its compact form allows for easy installation in tight spaces, making it 90% smaller than traditional tank heaters.
Key Advantages
- Energy Efficiency: With a thermal efficiency rating of 99%, the EcoSmart ECO 11 only heats water when needed, significantly reducing energy consumption compared to conventional tank heaters.
- Durable Materials: Constructed with 316-grade stainless steel, this unit resists corrosion, enhancing longevity and reliability.
- Consistent Performance: Continuously monitored water temperature and controlled flow rates maintain efficiency within 1 degree of the selected temperature.
Limitations
- Not compatible with high-demand applications requiring simultaneous hot water use in multiple outlets.
Best for outdoor enthusiasts needing a reliable and space-saving solution for hot water at point-of-use locations, the EcoSmart ECO 11 is an excellent choice for those prioritizing efficiency and compact design.
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WINTEMP 36kW Tankless Electric Water Heater
The adjustable valve sets the WINTEMP 36kW Tankless Electric Water Heater apart from its competitors. Designed for optimal performance, this unit boasts a maximum output of 8.7 gallons per minute, ensuring an endless supply of hot water. Constructed from high-quality materials, it features a compact design with dimensions of 13.7” (W) x 21.1” (H) x 5.3” (D), making it ideal for tight spaces. The water connection is a standard 3/4″ NPT.
Key Advantages
- The 316-grade stainless steel construction resists corrosion, enhancing durability. The self-regulating technology optimizes energy consumption, achieving up to 99% energy savings. With features like remote WiFi control, users can adjust settings conveniently from anywhere. Multiple safety mechanisms, including leakage and overheat protection, ensure safe operation.
Limitations
- It is not compatible with other tank-style water heaters and requires specific electrical setups, including 4 x 40 Amp double-pole breakers and a 300A household power supply.
Best for outdoor enthusiasts and homeowners needing a reliable, space-saving solution for hot water, the WINTEMP 36kW model excels in delivering performance, efficiency, and safety for everyday use.
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Faq about Navien Electric Tankless Water Heater:
1: What is a Navien electric tankless water heater?
A Navien electric tankless water heater is an on-demand water heating system that heats water directly without the use of a storage tank, providing hot water only when needed.
2: How does a Navien electric tankless water heater work?
This system heats water as it flows through the unit using electric heating elements, ensuring a continuous supply of hot water.
3: What are the benefits of using a Navien electric tankless water heater?
Benefits include energy efficiency, space-saving design, endless hot water supply, and reduced risk of water damage from leaks.
4: How do I install a Navien electric tankless water heater?
Installation requires professional assistance to ensure proper electrical connections and compliance with local codes.
5: What maintenance does a Navien electric tankless water heater require?
Regular maintenance includes descaling to prevent mineral buildup and checking electrical connections for safety and efficiency.
6: How long does a Navien electric tankless water heater last?
With proper maintenance, these units can last over 20 years, significantly longer than traditional tank heaters.
7: Are Navien electric tankless water heaters energy-efficient?
Yes, they are highly energy-efficient, often achieving energy factor ratings above 0.90, which can reduce utility bills.
Conclusion
Both the Rheem 18kW Tankless Electric Water Heater and the ORBEK 14kW Electric Tankless Water Heater exemplify cutting-edge technology in efficient hot water delivery. Rheem’s robust performance ensures a reliable supply, making it ideal for larger households, while ORBEK’s compact design and energy efficiency cater to smaller spaces without compromising on heating capacity.
Ultimately, the choice between these two products hinges on individual needs and preferences. Rheem’s superior output is perfect for high-demand scenarios, whereas ORBEK’s streamlined efficiency appeals to those prioritizing space and cost savings. Each product stands out in its own right, offering unique advantages to consumers seeking modern heating solutions.