Looking for the largest electric tankless water heater? Experience endless hot water with top-rated options that save space and energy.
The largest electric tankless water heater offers a perfect solution for those seeking efficiency and convenience. Top products like the Rheem 18kW 240V Tankless Electric Water Heater and Rheem RTEX-24 24kW 240V Electric Tankless Water Heater provide reliable performance, ensuring you enjoy hot water on demand while reducing energy costs.
These versatile units are ideal for various applications, from residential use to small businesses. With features like compact design and high flow rates, they cater to multiple points of use, making them a popular choice for homeowners and contractors alike.
In this full review, we’ll explore the benefits and specifications of these leading models, helping you choose the best electric tankless water heater for your needs.
Rheem 18kW Tankless Electric Water Heater
Rheem 18kW 240V Tankless Electric Water Heater: 18kW power, Durable Copper heating elements, 4.4 GPM flow rate, 2-year warranty.
Benefits
- Provides continuous hot water for multiple applications simultaneously.
- Self-modulating technology optimizes energy use based on demand.
- Simple installation with bottom 3/4 inch NPT water connections.
Drawbacks
- Requires a minimum electrical supply that may necessitate upgrades in older homes.
- Not ideal for larger households needing simultaneous high flow rates.
A practical pick for small to medium spaces, the Rheem 18kW Tankless Water Heater is an efficient solution for on-demand hot water needs. Its compact design allows for easy installation in tight areas, making it suitable for apartments and smaller homes. The advanced self-modulation feature ensures that energy is used efficiently, meeting hot water demands without wasting resources. However, potential buyers should consider their household’s hot water needs, as this unit performs best in scenarios where demand is moderate. Overall, it’s a reliable choice for those looking to save space and energy while enjoying a steady supply of hot water.
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Rheem RTEX-24 24kW Electric Water Heater
Rheem RTEX-24 24kW 240V Electric Tankless Water Heater: 12” long, ABS plastic, 2-year warranty.
Benefits
- Continuous hot water for the whole home, ensuring comfort during peak usage.
- Efficient design saves space and energy, reducing utility bills.
- Adjustable ON/OFF dial control with a digital temperature display allows for precise temperature settings from 80-140 degrees F.
- 3 x 40 AMP Double Pole Breakers required for optimal performance, making it suitable for most households.
Drawbacks
- No venting required, but installation may require professional help if electrical upgrades are needed.
- No dishwasher-safe parts, requiring manual cleaning and maintenance.
A practical pick for small spaces, the Rheem RTEX-24 is ideal for homeowners seeking an efficient, space-saving solution for their hot water needs. With its high performance and user-friendly features, it meets the demands of modern living while ensuring comfort and convenience.
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ORBEK 14kW Electric Tankless Water Heater
Orbek 14kW Tankless Water Heater Electric: 14.2”H x 9.5”L x 3.1”W, ETL certified, 2-year warranty.
Benefits
- Provides up to 3.38 GPM of endless hot water for 2-3 points of use simultaneously.
Drawbacks
- Requires a 240V/60AMP two-pole breaker and specific wiring for installation.
The Orbek electric tankless water heater excels in energy efficiency, utilizing innovative water-electricity separation technology. This design minimizes scale and corrosion, potentially reducing electricity costs by up to 60% compared to traditional tank-style heaters. The stable temperature control feature ensures a comfortable shower experience, adjusting heating power 20,000 times per second to maintain water temperature within 1°F.
The LED digital display provides real-time temperature adjustments between 86°F and 140°F, making it user-friendly. Its compact size allows it to fit easily into small spaces, making it an ideal choice for apartments or homes with limited room. Additionally, the unit is equipped with comprehensive security protections, including leakage and over-temperature safeguards, ensuring safe operation.
However, potential buyers should note that installation requires specific electrical configurations, which may not be suitable for every home. Overall, the Orbek 14kW Tankless Water Heater is a practical pick for small spaces that demand efficient and reliable hot water supply.
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WINTEMP 36kW Tankless Electric Water Heater
WINTEMP 36kW Tankless Electric Water Heater: 13.7” wide, 21.1” high, 5.3” deep, ETL certified, 2-year warranty.
Benefits
- Provides an endless supply of hot water, delivering up to 8.7 gallons per minute.
Drawbacks
- Requires professional installation due to high power needs and specific wiring requirements.
The WINTEMP 36kW Tankless Electric Water Heater is designed for efficiency and convenience. It automatically adjusts energy consumption based on incoming water temperature and flow rate, ensuring a stable water temperature without any fluctuations. This feature is particularly beneficial during showers, eliminating the need for preheating and the risk of running out of hot water.
Energy savings are significant, with the unit capable of achieving up to 99% energy efficiency. It consumes no energy when not in use, making it an eco-friendly choice for households with 3-5 hot water usage points. Its compact, wall-mounted design saves up to 90% more space compared to traditional tank heaters, making it ideal for small spaces.
Safety features include leakage protection, overheat protection, and dry-fire protection, ensuring peace of mind during use. The remote WiFi control allows for easy temperature adjustments from anywhere in the home.
A practical pick for small spaces, the WINTEMP 36kW Tankless Electric Water Heater is an excellent investment for those seeking efficient and reliable hot water solutions.
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ORBEK 18kW Electric Tankless Water Heater
Product: 18kW Tankless Water Heater Electric, ORBEK Instant On Demand Hot Water Heater 240V, Up to 4.17 GPM, Supply for 2-3 Fixtures Simultaneously, within 1℉ Stable Temp, ETL Certified, Indoor Installation. Key specs include a compact size of 17″H x 13.0″L x 3.9″W and a 2-year warranty.
Benefits
- Provides up to 4.17 GPM of endless hot water, ensuring simultaneous supply for 2-3 fixtures.
Drawbacks
- Requires professional installation with specific electrical needs, including 2 x 240V/40A breakers and 8 AWG wires.
This ORBEK tankless water heater excels in energy efficiency, potentially reducing electricity costs by up to 60% compared to traditional models. Its advanced safety features, including leakage and over-temperature protection, ensure safe operation. The LED digital display allows for easy temperature adjustments between 86°F and 140°F, while the built-in chip maintains a stable temperature within 1°F.
However, the necessity for professional installation may deter some users. Additionally, it is worth noting that the unit’s parts are not dishwasher-safe, which could lead to maintenance challenges.
This product is ideal for homeowners seeking a space-saving solution for hot water needs in small spaces and those who prioritize energy efficiency.
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Faq about largest electric tankless water heater:
1:What is the largest electric tankless water heater available?
The largest electric tankless water heater typically offers a flow rate of up to 10 gallons per minute, suitable for large households or commercial use.
2:How does an electric tankless water heater work?
It heats water on demand using electric coils, providing a continuous supply of hot water without the need for a storage tank.
3:What are the benefits of using a large electric tankless water heater?
Benefits include energy efficiency, space savings, and an endless supply of hot water, making it ideal for high-demand situations.
4:How much does a large electric tankless water heater cost?
Prices range from $800 to $2,500, depending on brand, capacity, and installation requirements.
5:What is the lifespan of an electric tankless water heater?
These units typically last 15 to 20 years with proper maintenance, outlasting traditional tank heaters.
6:Can I install a large electric tankless water heater myself?
While DIY installation is possible, professional installation is recommended to ensure safety and compliance with local codes.
7:What size electric tankless water heater do I need?
Size depends on your household’s peak hot water demand; consult a sizing guide or a professional for accurate recommendations.
Conclusion
The Rheem 18kW Tankless Electric Water Heater epitomizes efficiency, delivering consistent hot water while minimizing energy consumption, making it an excellent choice for residential applications. Its compact design and advanced technology ensure optimal performance, catering to diverse household needs.
Conversely, the Rheem RTEX-24 24kW Electric Water Heater stands out for its robust power output, providing an unparalleled hot water experience for larger households. With user-friendly controls and enhanced durability, it represents a sophisticated solution for those seeking reliability and efficiency in their water heating systems.