The Ultimate Guide to Electric Tankless Water Heaters
Electric tankless water heaters are revolutionizing the way we think about hot water in our homes. Unlike traditional water heaters that store hot water in a tank, tankless models heat water on demand, providing a continuous supply of hot water while saving space and energy. This guide will help you understand the benefits, types, features, and top picks for electric tankless water heaters based on extensive research.
Comparison of Electric Tankless Water Heaters
| Feature/Type | Point-of-Use | Whole House | High Efficiency |
|---|---|---|---|
| Application | Ideal for singular fixtures like sinks or showers | Suitable for entire homes or multiple fixtures | Advanced technology for optimal energy use |
| Cost | $200 – $500 | $500 – $800 | $800 – $1,500 |
| Flow Rate | 1-3 GPM | 3-8 GPM | 5-10 GPM |
| Installation | DIY-friendly | Professional required | Professional required |
| Energy Savings | Moderate | Significant | Highest |
| Space Requirements | Minimal | Moderate to High | Moderate |
Understanding Electric Tankless Water Heaters
Electric tankless water heaters operate by heating water directly without the need for a storage tank. When you turn on a hot water faucet, cold water travels through a pipe into the unit, where it is heated by electric coils. This allows for an endless supply of hot water, making it a popular choice among homeowners.
Benefits of Electric Tankless Water Heaters
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Energy Efficiency: Electric tankless water heaters can reduce energy bills by up to 30% as they only heat water as needed, eliminating standby losses associated with traditional tank heaters.
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Space Savings: Their compact design means they can be installed in smaller spaces, which is especially beneficial in homes with limited room.
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Longevity: Typically, tankless water heaters have a longer lifespan compared to traditional systems, often lasting over 20 years with proper maintenance.
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On-Demand Hot Water: Say goodbye to running out of hot water. With a tankless system, you can enjoy a continuous flow of hot water, perfect for larger households.
Types of Electric Tankless Water Heaters
Electric tankless water heaters come in various types depending on their application:
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Point-of-Use Heaters: These are installed close to the fixtures they serve, providing hot water immediately without the wait time associated with longer pipe runs.
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Whole House Heaters: Designed to supply hot water to multiple fixtures simultaneously, these models are ideal for larger homes.
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High-Efficiency Models: These units utilize advanced technology to maximize energy savings and reduce operational costs.
Key Features to Consider
When selecting an electric tankless water heater, there are several crucial features you should consider:
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Flow Rate: Measured in gallons per minute (GPM), this indicates how much hot water the unit can provide at any given time.
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Heating Capacity: The wattage of the unit determines how quickly it can heat water. Higher wattage generally means faster heating.
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Energy Efficiency Rating: Look for models with a high energy factor (EF) rating to ensure optimal energy savings.
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Size and Installation Requirements: Consider the space where the heater will be installed and whether you require professional installation.
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Warranty and Support: A good warranty and customer support can save you time and money in the long run.
Top Picks for Electric Tankless Water Heaters
Based on extensive research from various resources, including insights from www.bobvila.com and www.forbes.com, here are some of the best electric tankless water heaters available:
- Stiebel Eltron Tempra Plus Series
- Flow Rate: Up to 7.5 GPM
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Features: Self-modulating technology, compact design, and durable build.
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EcoSmart ECO 27
- Flow Rate: Up to 6 GPM
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Features: Energy-efficient, digital temperature control, and easy installation.
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Rinnai RU199iN
- Flow Rate: Up to 9.8 GPM
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Features: Versatile installation options, high efficiency, and great for medium to large homes.
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Ecosmart ECO 11
- Flow Rate: Up to 3.5 GPM
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Features: Compact size, affordable price, and ideal for smaller households.
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Bosch Tronic 3000
- Flow Rate: Up to 3 GPM
- Features: Point-of-use installation, compact design, and reliable performance.
Technical Features Comparison
| Model | Flow Rate (GPM) | Wattage | Energy Factor | Warranty |
|---|---|---|---|---|
| Stiebel Eltron Tempra Plus | Up to 7.5 | 24-36 KW | 0.99 | 7 years |
| EcoSmart ECO 27 | Up to 6 | 27 KW | 0.97 | Lifetime |
| Rinnai RU199iN | Up to 9.8 | 199,000 BTU | 0.96 | 5 years |
| Ecosmart ECO 11 | Up to 3.5 | 11 KW | 0.98 | Lifetime |
| Bosch Tronic 3000 | Up to 3 | 3-7 KW | 0.98 | 6 years |
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Conclusion
Electric tankless water heaters offer significant advantages over traditional systems, including energy efficiency, space savings, and an endless supply of hot water. When choosing the right model, consider your household needs, installation space, and energy consumption. With various options available, you can find a heater that fits your requirements and budget.
FAQ
What is an electric tankless water heater?
An electric tankless water heater heats water on demand without storing it in a tank, providing a continuous supply while saving energy and space.
How does a tankless water heater work?
When hot water is needed, cold water flows through the unit, where it is heated by electric coils before being delivered to the faucet.
What are the benefits of using an electric tankless water heater?
Benefits include energy savings, space efficiency, longevity, and an endless supply of hot water.
What is the average lifespan of a tankless water heater?
Typically, electric tankless water heaters can last over 20 years with proper maintenance.
How much do electric tankless water heaters cost?
Prices range from approximately $200 for smaller point-of-use models to $1,500 for high-efficiency whole-house units.
What factors should I consider when choosing a tankless water heater?
Consider flow rate, heating capacity, energy efficiency, size, installation requirements, and warranty.
Are tankless water heaters difficult to install?
Point-of-use models can be DIY-friendly, but whole-house units typically require professional installation.
Can I install a tankless water heater myself?
While some smaller models allow for DIY installation, whole-house units usually need a licensed plumber or electrician.
Do tankless water heaters require maintenance?
Yes, regular maintenance includes descaling and checking for mineral buildup, especially in areas with hard water.
What is the energy efficiency of electric tankless water heaters?
These units can be up to 30% more energy-efficient than traditional tank heaters due to their on-demand heating capabilities.