The Ultimate Guide to Electric Tankless Water Heaters
When it comes to modern home appliances, electric tankless water heaters have carved out a reputation for efficiency and convenience. Unlike traditional water heaters that rely on bulky storage tanks, tankless models heat water on demand, which can lead to significant energy savings and a more compact installation. This guide aims to provide a comprehensive overview of the best electric tankless water heaters available, helping you make an informed choice for your home.
Types and Applications of Electric Tankless Water Heaters
| Type | Application | Pros | Cons |
|---|---|---|---|
| Whole House | Entire home hot water supply | Provides hot water for multiple fixtures simultaneously | Higher upfront costs |
| Point-of-Use | Specific areas (e.g., bathroom, kitchen) | Lower cost and easier installation | Limited flow rate |
| Commercial | Business applications | Handles high demand and multiple uses | Requires professional installation |
| High-Efficiency | Energy-saving models | Reduces energy bills, higher efficiency | May have higher initial costs |
The Benefits of Electric Tankless Water Heaters
Electric tankless water heaters offer numerous advantages over traditional water heaters. They provide hot water on demand, eliminating the need for a storage tank and reducing the risk of running out of hot water during peak usage. This system is particularly beneficial for larger families or homes with multiple bathrooms. Additionally, these units typically have a longer lifespan and lower energy costs due to their efficient heating system.
Energy Efficiency
One of the main selling points of electric tankless water heaters is their energy efficiency. According to data from various sources, including insights from www.bobvila.com and www.forbes.com, these units can be up to 30% more efficient than conventional tank heaters. They eliminate standby heat loss, which is the energy wasted when hot water sits in a tank.
Space-Saving Design
Electric tankless water heaters are compact, making them ideal for homes with limited space. They can be installed in closets, under sinks, or mounted on walls, allowing homeowners to reclaim valuable floor space that would otherwise be occupied by a bulky tank system.
On-Demand Hot Water
With electric tankless water heaters, you can enjoy a continuous supply of hot water. This feature is particularly advantageous for households that frequently run multiple appliances simultaneously, such as washing machines and showers. As highlighted by www.thisoldhouse.com, these systems can efficiently supply hot water without the worry of depleting a tank.
Key Features to Consider
When choosing an electric tankless water heater, several key features should be considered:
Flow Rate
Flow rate refers to the amount of hot water a unit can deliver per minute. This is critical for ensuring that your household’s demands are met. According to various reviews, including those from www.popsci.com and thewaternerd.com, units typically range from 2 to 8 gallons per minute (GPM).
Energy Factor (EF)
The Energy Factor is a measure of a water heater’s overall energy efficiency. Units with a higher EF rating consume less energy to heat water. It’s a crucial metric for homeowners looking to maximize energy savings.
Temperature Rise
This metric indicates how much the unit can raise the incoming water temperature to meet your needs. For example, if your incoming water temperature is 50°F and you want it heated to 120°F, the temperature rise is 70°F. Units differ in their capacity to achieve various temperature rises, so consider this based on your local climate.
Warranty
A robust warranty is a sign of a manufacturer’s confidence in their product. Most reputable brands offer warranties ranging from 5 to 10 years, covering parts and labor. Referencing sources like www.thespruce.com and plumbinglab.com can provide insights into the best warranties available.
Top Electric Tankless Water Heaters
Here’s a comparison of some leading electric tankless water heaters, based on expert reviews and customer feedback:
| Model | Flow Rate (GPM) | Energy Factor | Warranty |
|---|---|---|---|
| Stiebel Eltron Tempra Plus | 2.5 – 7.0 | 0.99 | 7 years |
| Rinnai RU199iN | 7.5 | 0.96 | 5 years |
| EcoSmart Eco 27 | 3.5 | 0.98 | Lifetime |
| Rheem RTEX-13 | 3.5 | 0.98 | 5 years |
| Bosch Tronic 3000 | 2.5 | 0.98 | 2 years |
Installation Considerations
Installing an electric tankless water heater can be more complex than traditional systems. While some homeowners may opt for DIY installation, it is often advisable to hire a professional. This ensures that the unit is correctly sized and installed per local codes and regulations.
Electrical Requirements
Electric tankless water heaters require a dedicated electrical circuit to function properly. Make sure your home’s electrical system can handle the additional load. Consult with a licensed electrician to evaluate your current setup.
Plumbing Modifications
In some cases, you may need to modify existing plumbing to accommodate the new system. This could involve rerouting pipes or adding new fixtures. Be sure to factor these potential changes into your overall project budget.
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Conclusion
Electric tankless water heaters are an excellent choice for those looking to maximize energy efficiency and space in their homes. With options available for both whole-house and point-of-use applications, there is a model suitable for nearly every household. By considering key features such as flow rate, energy factor, and warranty, homeowners can make informed decisions that align with their specific needs.
FAQ
What is an electric tankless water heater?
An electric tankless water heater heats water on demand, providing hot water without the need for a storage tank, which helps save space and reduce energy costs.
How do electric tankless water heaters work?
These heaters use powerful electric heating elements to heat water as it flows through the unit, ensuring a continuous supply of hot water.
Are electric tankless water heaters energy-efficient?
Yes, they are typically more energy-efficient than traditional tank heaters, often saving homeowners up to 30% on energy costs.
What size electric tankless water heater do I need?
The size depends on your household’s hot water demand. Consider the number of fixtures you intend to use simultaneously and the desired flow rate.
How long do electric tankless water heaters last?
With proper maintenance, electric tankless water heaters can last over 20 years, significantly longer than traditional tank models.
Can I install an electric tankless water heater myself?
While some homeowners may opt for DIY installation, it’s usually best to hire a professional to ensure compliance with local codes and proper setup.
Do electric tankless water heaters require a lot of maintenance?
They require minimal maintenance compared to traditional models, but regular descaling is recommended, especially in areas with hard water.
What is the average cost of an electric tankless water heater?
Costs can vary widely based on size and brand, but you can generally expect to pay between $200 to $800 for the unit, plus installation costs.
Can electric tankless water heaters provide water for multiple uses at the same time?
Yes, depending on the model’s flow rate, many electric tankless water heaters can supply hot water to multiple fixtures simultaneously.
What are the most reliable brands of electric tankless water heaters?
Brands such as Stiebel Eltron, Rinnai, and EcoSmart consistently receive high ratings for reliability and performance in reviews from sources like www.familyhandyman.com and www.best-osmosis-systems.com.