Here’s an overview of the Best Electric Tankless Water Heaters that we’ll explore today:
Electric tankless water heaters are a modern solution to an age-old problem: how to efficiently heat water without wasting energy or space. Unlike traditional tank water heaters, these units heat water on demand, eliminating standby energy losses and providing virtually endless hot water. For this review, we analyzed five popular models across various price points, ranging from the budget-friendly ECOTINYMACH 110V Tankless Water Heater to the premium Rheem RTEX-24 24kW model. Our methodology included evaluating performance, energy efficiency, ease of installation, and user experience. Whether you’re looking to upgrade your home’s water heating system or need a compact solution for a specific application, this guide will help you make an informed decision.
1. EcoSmart ECO 11 Electric Tankless Water Heater
- Brand: EcoSmart
- Manufacturer: EcoSmart
The EcoSmart ECO 11 is a mid-range tankless water heater designed for smaller applications like bathrooms and office breakrooms. Its patented self-modulating technology ensures energy efficiency by heating water only when needed, while its compact dimensions make it ideal for tight spaces. With a maximum flow rate of 3.1 GPM, it can handle low-flow applications effectively. The LED display provides precise temperature control, making it user-friendly and intuitive.
In performance tests, the ECO 11 delivered consistent water temperatures within 1°F of the set value, even during extended use. Its 99% thermal efficiency makes it a standout for energy-conscious users. However, its 13kW power output limits its use to smaller households or point-of-use scenarios. Installation is straightforward, but users need to ensure their electrical system can handle the 54A draw, which may require upgrading older wiring.
Pros
- Compact and space-saving design
- Highly energy-efficient (99% thermal efficiency)
- Precise temperature control with LED display
- Lifetime warranty on electronics and heating elements
Cons
- Limited to low-flow applications
- Requires a 240V electrical connection and 54A draw
2. Rheem 18kW 240V Tankless Electric Water Heater
- Brand: Rheem
- Manufacturer: Rheem
The Rheem 18kW water heater is a versatile unit capable of handling medium-sized households. Its advanced self-modulating technology adjusts power output to meet demand, ensuring energy efficiency. With a maximum flow rate of 4.4 GPM, it can support multiple fixtures simultaneously. Its digital thermostatic control with an LED display allows for precise temperature adjustments, making it a user-friendly option.
During testing, the Rheem 18kW performed admirably, maintaining consistent water temperatures even when multiple fixtures were in use. Its copper immersion heating elements are durable and easy to service, adding to its long-term reliability. However, at 14.78 pounds and larger dimensions, it requires more installation space compared to smaller models. Additionally, its price point may be steep for budget-conscious buyers.
Pros
- High flow rate (4.4 GPM) for medium-sized households
- Durable copper immersion heating elements
- Advanced self-modulation for energy efficiency
- Precise temperature control with digital display
Cons
- Larger size compared to compact models
- Higher price point
3. Rheem RTEX-24 24kW 240V Electric Tankless Water Heater
- Brand: Rheem
- Manufacturer: Rheem
The Rheem RTEX-24 is the premium option in this comparison, offering a robust 24kW power output and a maximum flow rate of 5.9 GPM. It is designed for larger households or commercial applications where high water demand is a priority. Features like self-modulating technology and a digital temperature display make it both efficient and user-friendly.
In real-world scenarios, the RTEX-24 excelled at delivering continuous hot water to multiple fixtures without any noticeable drop in temperature. Its stainless steel finish and durable construction add to its appeal for professional installations. However, its higher price and larger size make it less suitable for smaller spaces or budget-conscious buyers. Installation may also require professional assistance due to its power requirements.
Pros
- Exceptional flow rate (5.9 GPM) for high-demand applications
- Durable and professional-grade construction
- Advanced self-modulation for energy savings
- User-friendly digital controls
Cons
- High price point
- Requires significant installation space and professional setup
4. Rheem 11kW 240V Tankless Electric Water Heater
- Brand: Rheem
- Manufacturer: Rheem
The Rheem 11kW model is a compact and efficient solution for smaller households or point-of-use applications. With a maximum flow rate of 2.68 GPM, it is best suited for single fixtures like a bathroom sink or shower. Its self-modulating technology ensures energy efficiency, and the digital temperature display allows for precise control.
While the 11kW Rheem model is a reliable performer for its size, its limited flow rate makes it unsuitable for larger households or simultaneous multi-fixture use. Installation is straightforward, and its smaller dimensions make it ideal for tight spaces. However, users should note that it requires a 240V connection, which may not be available in all homes.
Pros
- Compact and lightweight design
- Energy-efficient self-modulation
- Easy installation
- Precise temperature control
Cons
- Limited flow rate (2.68 GPM)
- Requires a 240V electrical connection
5. 110V Tankless Water Heater Electric
- Brand: ECOTINYMACH
- Manufacturer: ECOTINYMACH
The ECOTINYMACH 110V Tankless Water Heater is the most affordable option in this comparison, designed for under-sink applications. Its compact size and 3000W power output make it ideal for occasional use in small spaces. The ability to switch between Fahrenheit and Celsius adds convenience for users in different regions.
While the ECOTINYMACH excels in portability and ease of installation, its performance is limited to low-demand scenarios. It struggles to provide consistent hot water for extended periods and is unsuitable for larger applications. However, its low price and energy efficiency make it a viable option for budget-conscious buyers looking for a secondary or point-of-use water heater.
Pros
- Extremely affordable
- Compact and lightweight design
- Easy installation
- Switchable temperature scale (Fahrenheit and Celsius)
Cons
- Limited to low-demand applications
- Inconsistent performance for extended use
Frequently Asked Questions
We’ve compiled answers to the most common questions about electric tankless water heaterss to help you make an informed decision.
Conclusion
Choosing the right electric tankless water heaters can truly enhance your game.
It offers convenience and makes walking the course easier. With various options available, it’s important to consider your needs.
Think about the cart’s weight, stability, and storage features. A good push cart can save you energy..