In today’s world, optimizing energy consumption is not just a trend, it’s a necessity. For homeowners, one of the most significant energy consumers is often the water heater.
Choosing the best energy efficient electric water heater can dramatically reduce your utility bills and your environmental footprint. But with so many options on the market, how do you ensure you’re making the right choice?
This comprehensive review explores the vital factors to consider when selecting the best energy efficient electric water heater. We’ll delve into the key features that impact performance and efficiency, helping you navigate the complexities and prioritize quality and value.
Understanding these elements is crucial for making an informed decision that benefits both your wallet and the planet.
IN THIS ARTICLE
Top 5 Energy Efficient Electric Water Heater Compared
EcoSmart ECO 11 Electric Tankless Water Heater
- Tankless design provides on-demand hot water.
- High energy efficiency saves money long term.
- Lifetime warranty offers peace of mind.
- Compact size fits in tight spaces easily.
4.3/5
Check Price on Amazon
Rheem 6.5kW 240V Point of Use Thermostatic Tankless Electric Water Heater
- Tankless design offers on-demand hot water.
- Compact and wall-mountable saves space.
- Thermostatic control provides consistent temperature.
- High maximum temperature for various needs.
4.0/5
Check Price on Amazon
Tankless Water Heater Electric 110V
- Lightweight design makes installation and handling easier.
- Dry combustion protection enhances product safety.
- LED display offers clear temperature monitoring.
- High efficiency saves energy and reduces costs.
4.6/5
Check Price on Amazon
Rheem 18kW 240V Tankless Electric Water Heater
- High efficiency (99.8%) saves on energy costs.
- Powerful 18kW heat output for quick heating.
- LED display for easy temperature monitoring.
- Compact size and wall mount for space saving.
4.2/5
Check Price on Amazon
Tankless Water Heater Electric 8KW 240V
- Lightweight design makes for easy installation.
- Overheat protection ensures safe, reliable operation.
- LED display for easy temperature monitoring.
- High flow rate delivers ample hot water.
4.2/5
Check Price on Amazon
Detailed Reviews of the Best Energy Efficient Electric Water Heater
EcoSmart ECO 11 Electric Tankless Water Heater – Tankless design provides on-demand hot water.
Top features highlighted include the affordability of the EcoSmart 11kw tankless water heater, costing less than $250, which is significantly lower than traditional water heaters. The compact size and ease of installation were also noted as key advantages, making it suitable for individuals living in smaller spaces. The unit provides endless hot water on demand, leading to potential power bill savings and eliminating concerns about tank leaks or pressure issues.
The individual expressed satisfaction with the unit’s performance, particularly for a single-person household, stating that it provides “insanely hot” showers at 120 degrees. While acknowledging the need to upgrade the circuit breaker and wires for optimal performance, the initial installation was manageable with some DIY skills. The digital temperature dial and overall design were praised for their user-friendliness and quality.
The unit’s ability to contribute to environmental and energy savings was also a positive aspect. While the warranty is voided with self-installation, the cost-effectiveness of the unit makes it a worthwhile risk for some. The only noted drawbacks were the lack of clear documentation on wire identification and the potential for temperature fluctuations due to varying incoming water temperatures, which can be mitigated with adjustments or a buffer tank.
The overall sentiment is highly positive, with a 5-star rating given to the EcoSmart 11kw tankless water heater. The unit’s value, performance, and environmental benefits make it an attractive option for those seeking an alternative to traditional water heaters.
Pros
- Tankless design provides on-demand hot water.
- High energy efficiency saves money long term.
- Lifetime warranty offers peace of mind.
- Compact size fits in tight spaces easily.
- Watersense certified for water conservation.
Cons
- Warranty is voided by self install
- Water temp is inconsistent in winter
Rheem 6.5kW 240V Point of Use Thermostatic Tankless Electric Water Heater – Tankless design offers on-demand hot water.
In this review, the product is being utilized in a unique setting—a feed room in a horse barn—connected to a utility sink. A key advantage is its ability to provide adequately heated water, making tasks easier and more comfortable, especially in environments where access to warm water is not readily available. The product’s performance is noted to be dependent on maintaining a controlled water flow rate, indicating that users can optimize water temperature by adjusting the flow.
Another positive aspect is the product’s wattage. It was selected specifically because it represents the maximum power draw that the existing electrical wiring can safely support. This highlights the product’s suitability for installations where electrical capacity is a limiting factor.
This feature can be particularly beneficial for those seeking to upgrade their water heating capabilities without requiring extensive or costly electrical modifications. While the wattage limitation is mentioned, it’s important to note that this is a constraint of the existing infrastructure, not necessarily a deficiency of the product itself. The product effectively meets the needs within the boundaries of the electrical system, offering a practical solution for providing heated water in locations like a horse barn feed room.
The product’s ability to deliver adequately heated water within the electrical constraints demonstrates its suitability for various applications.
Pros
- Tankless design offers on-demand hot water.
- Compact and wall-mountable saves space.
- Thermostatic control provides consistent temperature.
- High maximum temperature for various needs.
- Lightweight and easy wall installation.
Cons
- Limited heat settings
- Wiring limits wattage
Tankless Water Heater Electric 110V – Lightweight design makes installation and handling easier.
Looking for a revolutionary tankless water heater? This sleek and compact unit is designed for convenience and efficiency, making it ideal for under-sink installation and saving valuable space. The high-quality build ensures durability and long-lasting performance, giving you peace of mind.
The intuitive digital display allows for effortless monitoring and precise temperature adjustments, putting you in complete control of your hot water needs. Enjoy the luxury of instant hot water on demand, eliminating the wait and ensuring you always have hot water at your fingertips, whether for washing dishes or taking a shower. The unit’s ease of use is further enhanced by its simple controls and straightforward interface.
This electric water heater is not only convenient but also incredibly cost-effective. It uses energy only when you need hot water, reducing energy waste and lowering your utility bills. Even those with limited DIY experience will appreciate the easy installation process.
Overall, this tankless water heater offers exceptional value for money, delivering on its promises with reliable and efficient performance. It’s a high-quality product at a competitive price point, making it an excellent choice for anyone seeking a dependable solution for their hot water requirements.
Pros
- Lightweight design makes installation and handling easier.
- Dry combustion protection enhances product safety.
- LED display offers clear temperature monitoring.
- High efficiency saves energy and reduces costs.
- Compact size fits conveniently under sinks.
Cons
- High initial purchase price
- Needs professional install
Rheem 18kW 240V Tankless Electric Water Heater – High efficiency (99.8%) saves on energy costs.
My first thought was, this tankless water heater offers a compelling upgrade from traditional tank heaters. After replacing a 10+ year old tank heater that reached the end of its service life, the decision was made to switch to tankless, drawn by the appeal of on-demand hot water and potential cost savings. This model, specifically, has proven to be a great choice.
Installation is notably easy, especially for those with some DIY experience. Its compact size is a significant advantage, freeing up valuable space. While professional installation involves costs for new electrical wiring and plumbing modifications, self-installation can be substantially more affordable, with expenses mainly for a valve kit, fittings, and wiring.
The unit requires two 40 amp breakers to operate effectively. The performance of this tankless heater is impressive. It delivers instant hot water and easily handles the simultaneous demands of two showers, or a shower combined with dishwasher and laundry use, making it suitable for a household’s needs.
An added benefit is the improved cleanliness due to the elimination of stagnant water storage, contrasting sharply with the sediment buildup found in traditional tanks. While initial experiences are positive, it’s important to acknowledge potential technical issues that may arise. Professional installation may also be necessary, requiring coordination between plumbers and electricians, and can impact the overall cost.
Additional considerations include the need for a pressure relief valve kit, which may necessitate the purchase of additional nipples for flexible hose connections.
Pros
- High efficiency (99.8%) saves on energy costs.
- Powerful 18kW heat output for quick heating.
- LED display for easy temperature monitoring.
- Compact size and wall mount for space saving.
- Stainless steel finish provides modern look.
Cons
- Installation is costly for some
- Additional parts add to expenses
Tankless Water Heater Electric 8KW 240V – Lightweight design makes for easy installation.
To share my thoughts on this tankless water heater, it’s important to consider its intended use. This particular model was initially purchased for a second home to supply hot water to both a kitchen sink and a shower. While it effectively heated water for the sink, it did not reach a sufficiently high temperature for comfortable showering.
However, the experience with the seller was exceptional. They demonstrated outstanding communication and thoroughly explained the reason for the temperature issue, clarifying that a 240V model would be more appropriate for the intended application. Demonstrating their commitment to satisfaction, the seller graciously offered to send a replacement unit to better meet the requirements.
The exceptional level of support provided by Wintemp customer service is a significant highlight. If there are any uncertainties about which tankless water heater model is best suited for specific needs, contacting Wintemp customer service is highly recommended. They are knowledgeable, responsive, and dedicated to ensuring that individuals select the right product.
Their dedication to standing behind their products and providing excellent support makes them a reliable choice. The level of service received was described as the best ever experienced, showcasing the company’s commitment to resolving issues and ensuring satisfaction. The new tank is expected to resolve the issue, and an update will be provided after it is installed and tested.
Pros
- Lightweight design makes for easy installation.
- Overheat protection ensures safe, reliable operation.
- LED display for easy temperature monitoring.
- High flow rate delivers ample hot water.
- High wattage provides significant heat output.
Cons
- Here are two cons based on the review:
- Not hot enough for shower
Buying Guide: What to Look For in a Energy Efficient Electric Water Heater
Understanding Your Hot Water Needs
Before diving into the world of best energy efficient electric water heaters, assess your household’s hot water demands. Consider the number of occupants, simultaneous hot water usage (showers, dishwashers, laundry), and your geographical location (colder climates require more heating power). This assessment will help determine the appropriate size and power of the water heater you need. A smaller, point-of-use heater might suffice for a single bathroom, while larger households will need a more powerful whole-house solution.
Tankless vs. Tank Water Heaters
The primary choice is between tankless and traditional tank water heaters. Tankless models, also known as on-demand water heaters, heat water only when needed, eliminating standby heat loss common in tank heaters, making them generally more energy efficient. Tank heaters, on the other hand, store a reserve of hot water, potentially being more convenient for high-demand situations but less efficient overall. Tankless water heaters are also generally more compact, saving space.
Key Features to Look For
When selecting a best energy efficient electric water heater, consider these features: Energy efficiency rating (look for Energy Star certification), flow rate (for tankless models, ensuring it meets your peak demand), thermostatic control (for consistent temperature), digital displays (for easy monitoring), and safety features like overheat protection and dry combustion protection. Also, consider the warranty offered, as a longer warranty indicates greater product reliability.
Installation Considerations
Electric water heaters generally require professional installation, especially if electrical work is needed. Factor in installation costs when comparing models. Tankless models require adequate electrical capacity, which may necessitate upgrading your electrical panel. Consider the mounting location, as some models are designed for wall mounting or under-sink installation, maximizing space savings. Proper installation is crucial for optimal performance and safety.
Sizing and Electrical Requirements
Proper sizing is crucial for energy efficient performance. Undersized units will struggle to meet demand, while oversized units are unnecessarily expensive. Electric water heaters have specific voltage and amperage requirements. Ensure your electrical system can handle the load. A qualified electrician can assess your electrical system and recommend the appropriate size and electrical specifications for your new water heater.
Frequently Asked Questions about Energy Efficient Electric Water Heater
What makes an electric water heater “energy efficient”?
An energy efficient electric water heater minimizes energy waste in several ways. Tankless models eliminate standby heat loss by heating water only when needed. High-quality insulation in tank models reduces heat loss. Features like electronic ignition and modulating burners optimize fuel consumption. An Energy Star certification indicates that the model meets strict energy efficiency standards set by the EPA. Overall, an energy efficient model translates to lower energy bills and a smaller environmental footprint.
How do I choose the right size tankless electric water heater?
To choose the correct size, you need to determine your peak hot water demand. This involves calculating the total gallons per minute (GPM) of hot water you use simultaneously (e.g., shower, sink, dishwasher). Then, consider the temperature rise required – the difference between the incoming water temperature and your desired hot water temperature. Use these figures to select a tankless heater with a GPM rating that meets your needs at your desired temperature rise.
What are the benefits of a tankless electric water heater?
Tankless electric water heaters offer several advantages. They provide on-demand hot water, eliminating the wait for a tank to heat up. They are generally more energy efficient than tank heaters, saving you money on energy bills. Their compact size saves space. They have a longer lifespan than tank heaters. They eliminate the risk of tank leaks and associated water damage.
How much does it cost to install an electric water heater?
Installation costs vary depending on several factors, including the type of water heater (tank or tankless), the complexity of the installation (e.g., electrical upgrades, plumbing modifications), and your location. A simple tank replacement might cost a few hundred dollars, while a tankless installation requiring electrical panel upgrades could cost significantly more. It’s best to obtain quotes from several qualified plumbers and electricians to get an accurate estimate.
What is the lifespan of an electric water heater?
The lifespan of an electric water heater depends on factors like water quality, usage patterns, and maintenance. Tank heaters typically last 8-12 years, while tankless heaters can last 20 years or more with proper care. Regular maintenance, such as flushing the tank to remove sediment, can extend its lifespan. Choosing a high-quality model from a reputable brand also contributes to longevity.
What is the difference between 110V and 240V electric water heaters?
110V electric water heaters are typically used for point-of-use applications, such as a single sink or small bathroom. They have lower heating power and are less expensive to install. 240V electric water heaters are used for whole-house applications or for higher hot water demands. They have higher heating power and can deliver more hot water faster. 240V models require a dedicated 240V circuit.
What safety features should I look for in an electric water heater?
Important safety features include overheat protection, which prevents the heater from overheating and potentially causing a fire. Dry combustion protection prevents the heating elements from burning out if the tank runs dry. A pressure relief valve prevents excessive pressure buildup in the tank. A temperature and pressure relief (T&P) valve provides additional safety.
How can I maintain my electric water heater to maximize its lifespan?
Regular maintenance is crucial for extending the lifespan of your electric water heater. For tank heaters, flush the tank annually to remove sediment buildup, which can reduce efficiency and damage the heating elements. Inspect the anode rod regularly and replace it when necessary to prevent corrosion. For tankless heaters, descale the unit annually to remove mineral deposits.
Are there any rebates or incentives for purchasing an energy efficient electric water heater?
Many utility companies and government agencies offer rebates and incentives for purchasing energy efficient electric water heaters. Check with your local utility company and state energy office to see what programs are available in your area. These rebates can significantly reduce the upfront cost of purchasing a more efficient model.
What is the warranty on most electric water heaters?
Warranty coverage varies depending on the manufacturer and model. Tank heaters typically have a 6-12 year warranty on the tank and a 1-5 year warranty on parts. Tankless heaters often have longer warranties, with some manufacturers offering lifetime warranties on the heat exchanger. Review the warranty terms carefully before making a purchase.
Conclusion: The Final Verdict
After careful consideration of all the options, we believe the EcoSmart ECO 11 Electric Tankless Water Heater stands out as the best overall choice for most users. It offers an excellent balance of features, performance, and value. Whether you are a casual user or a discerning enthusiast, this product delivers on its promises and provides a satisfying experience.
