Imagine this: you’re in the middle of a long, relaxing shower, and suddenly, the hot water runs out! Frustrating, right? Or maybe you’re tired of a bulky water heater taking up precious space in your home. If these thoughts make you nod your head, then you’re in the right place. Choosing an electric tankless hot water heater can feel like a puzzle with too many pieces. You want hot water whenever you need it, but you also want to save energy and money.
That’s why we’re here to help. This post will be your friendly guide through the world of electric tankless water heaters. We’ll break down what they are, how they work, and what makes them a great choice for many homes. You’ll learn how to pick the perfect one for your needs, avoiding common mistakes along the way.
By the end of this read, you’ll feel confident in understanding the benefits and features of these modern heaters. We’ll cover everything from sizing them correctly to understanding their energy efficiency. Get ready to say goodbye to cold showers and hello to smart, on-demand hot water!
Our Top 5 Electric Tankless Hot Water Heater Recommendations at a Glance
| Image | Product | Rating | Links |
|---|---|---|---|
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EcoSmart ECO 11 Electric Tankless Water Heater | 8.6/10 | Check Price |
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Rheem 18kW 240V Tankless Electric Water Heater | 8.7/10 | Check Price |
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18kW Tankless Water Heater Electric | 9.3/10 | Check Price |
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14kW Tankless Water Heater Electric | 9.5/10 | Check Price |
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Tankless Water Heater Electric 110V | 9.0/10 | Check Price |
Top 5 Electric Tankless Hot Water Heater Detailed Reviews
1. EcoSmart ECO 11 Electric Tankless Water Heater
Rating: 8.8/10
Tired of cold showers or waiting for water to heat up? The EcoSmart ECO 11 Electric Tankless Water Heater offers a smart solution. This 13KW, 240-volt heater uses special self-modulating technology to give you endless hot water. It precisely controls the water temperature, keeping it within 1 degree of what you set. This means consistent hot water whenever you need it, without running out.
What We Like:
- Provides endless on-demand hot water, so you never run out.
- Its patented self-modulating technology ensures consistent water temperature.
- It’s very energy efficient, saving you money on bills.
- Takes up much less space than old tank water heaters, saving room.
- Heats water only when you need it, unlike tank heaters that waste energy.
- Perfect for bathrooms, small sinks, and breakrooms.
What Could Be Improved:
- Requires a 54 Amp draw, which might need electrical upgrades.
- The flow rate can vary depending on how cold the incoming water is.
- It’s best for low-flow applications; check the sizing guide for larger needs.
This EcoSmart ECO 11 is a fantastic option for efficient, on-demand hot water in smaller spaces. It’s a great way to save energy and enjoy the convenience of never-ending hot water.
2. Rheem 18kW 240V Tankless Electric Water Heater
Rating: 8.9/10
Upgrade your home’s hot water with the Rheem 18kW 240V Tankless Electric Water Heater in sleek gray. This heater provides endless hot water on demand, meaning you’ll never run out during your morning shower or while doing laundry. Its smart design saves energy and space, making it a great choice for modern homes.
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What We Like:
- The external digital thermostatic control lets you set your exact water temperature with amazing accuracy, just plus or minus one degree.
- Its advanced self-modulation technology smartly adjusts the heater’s power to match exactly how much hot water you need, saving energy.
- Two strong copper immersion heating elements are built to last and can be easily replaced in the field if ever needed.
- It delivers a generous flow rate of up to 4.4 gallons per minute, enough for multiple uses at once.
- Installation is a breeze with simple bottom 3/4 inch NPT water connections that are threaded for easy replacement.
- The digital temperature display makes it simple to see and control your hot water settings.
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What Could Be Improved:
- While powerful, an 18kW unit might require a dedicated high-amperage electrical circuit, which could add to installation costs for some homes.
- As an electric tankless heater, its performance can be affected by very cold incoming water temperatures, potentially reducing the maximum flow rate in colder climates.
The Rheem 18kW tankless water heater offers a smart and efficient way to get endless hot water. It’s a reliable upgrade for any home looking for convenience and energy savings.
3. 18kW Tankless Water Heater Electric
Rating: 8.7/10
Upgrade your home’s hot water with the ORBEK 18kW Tankless Water Heater. This electric, on-demand heater provides endless hot water for your daily needs. It’s designed for easy indoor installation and offers a stable, comfortable temperature for your showers and faucets.
What We Like:
- Provides instant, endless hot water up to 4.17 GPM.
- Can supply hot water to 2-3 fixtures at the same time.
- Very energy efficient, potentially saving you up to 60% on electricity bills.
- Advanced safety features like leakage protection and over-temperature protection keep you safe.
- Maintains a stable water temperature within 1°F for a perfect shower.
- Easy-to-use LED display shows real-time temperature.
- Compact design saves over 50% more space than traditional water heaters.
- ETL certified for safety and reliability.
- Comes with long-term return and exchange services.
What Could Be Improved:
- Requires professional installation due to its high power needs (2 x 240V/40A breakers, 8 AWG wires).
- Consulting an electrician is recommended to ensure your circuit can handle the power.
The ORBEK tankless water heater is a smart choice for efficient and reliable hot water. It offers modern features and space-saving design for your home.
4. 14kW Tankless Water Heater Electric
Rating: 8.9/10
Tired of cold showers? The ORBEK 14kW Electric Tankless Water Heater delivers endless hot water exactly when you need it. This 240-volt on-demand heater is perfect for busy households, providing up to 3.38 gallons per minute, enough for 2-3 uses at once. It heats water in just 3 seconds and can save you a lot of money on your electricity bills compared to old tank heaters.
What We Like:
- Provides endless hot water for multiple uses at the same time.
- Heats water very quickly, in just 3 seconds.
- Saves energy and can lower your electricity costs by up to 60%.
- Built-in safety features like leakage and over-temperature protection keep you safe.
- Keeps your shower temperature steady within 1°F for a comfy experience.
- Easy-to-read LED screen lets you set the temperature from 86°F to 140°F.
- Small size saves over 50% of space compared to old tank water heaters.
- Installation is made easier with improved design.
- Comes with good after-sale service and support.
What Could Be Improved:
- Requires a 240V/60AMP two-pole breaker, which might mean upgrading your electrical panel.
- Needs specific 6 AWG wires and 1/2″ NPT water connections.
- It’s recommended to get a professional electrician to make sure your circuit can handle its high power needs.
This ORBEK tankless water heater offers a modern, efficient, and safe way to enjoy hot water. It’s a smart choice for upgrading your home’s hot water system.
5. Tankless Water Heater Electric 110V
Rating: 9.5/10
Tired of waiting for hot water? This 110V, 3000W electric tankless water heater delivers instant hot water right when you need it. Its compact design makes it perfect for under sinks in kitchens, bathrooms, RVs, and even for camping. Enjoy hot water on demand without the need for a bulky tank.
What We Like:
- Provides instant, continuous hot water with its 3000W power.
- Heats water quickly, raising the temperature by 82°F to 131°F in seconds.
- Features a clear LED digital display for easy temperature setting in Fahrenheit or Celsius.
- Compact and elegant design fits easily under sinks and in small spaces.
- Includes multiple safety features like water-electricity isolation, IPX4 waterproof rating, leakage protection, and dry boil protection.
- High thermal efficiency of 98% helps save energy.
- Easy to install with premade screw holes and standard 1/2 inch NPT interface.
- Comes with a 30-day money-back guarantee and a 24-month warranty.
What Could Be Improved:
- Not suitable for showers due to lower flow rate requirements.
- Installation must be vertical; horizontal installation can cause malfunctions.
- Requires specific wiring (≥ 2.5 sq mm) and a trip switch (over 32a) for safe operation.
This tankless water heater is a great solution for quick hot water needs in various locations. Its efficiency and safety features make it a reliable choice for everyday use.
Your Guide to Electric Tankless Hot Water Heaters
Going tankless means you get hot water whenever you need it. Electric tankless water heaters heat water on demand. They don’t store hot water like traditional tanks. This saves energy and space. This guide helps you choose the best one.
Why Choose an Electric Tankless Water Heater?
Traditional water heaters have a big tank. They keep a lot of water hot all the time. This uses energy even when you don’t need hot water. Tankless heaters only heat water when a faucet turns on. This means less wasted energy. They also last longer than tank heaters.
Key Features to Look For
When you shop, check these things:
1. Flow Rate
This is how much hot water the heater can give you at once. It’s measured in gallons per minute (GPM). More GPM means you can run more hot water appliances at the same time. A shower needs about 2 GPM. A dishwasher might need 1.5 GPM. Check how many things you use at once.
2. Temperature Rise
This tells you how much the heater can raise the water temperature. If your cold water is very cold, you need a higher temperature rise. For example, if your cold water is 50°F and you want 100°F water, you need a 50°F rise.
3. Energy Efficiency Rating (UEF)
Look for a high UEF. This shows how well the heater converts electricity into hot water. Higher numbers are better.
4. Size and Compactness
Tankless heaters are small. They can fit in tight spaces. Measure where you plan to put it.
5. Digital Controls and Smart Features
Some heaters have easy-to-use digital displays. You can set the exact temperature. Some even connect to your phone.
Important Materials
The parts inside matter.
- Heating Elements: These get hot to warm the water. Stainless steel or copper are common. Stainless steel is strong. Copper heats up fast.
- Housing: The outside case protects the parts. It is usually made of durable plastic or metal.
Factors That Improve or Reduce Quality
Good heaters last longer and work better.
What Makes Them Good
- Brand Reputation: Well-known brands often make reliable products.
- Good Reviews: Read what other people say. Happy customers are a good sign.
- Strong Warranties: A good warranty shows the company trusts its product.
- Easy Installation: Some heaters are easier to install than others.
What Makes Them Less Good
- Low-Quality Components: Cheap parts break faster.
- Poor Design: A heater that is hard to use or maintain is frustrating.
- Not Enough Power: If the heater can’t keep up with your hot water needs, it’s no good.
User Experience and Use Cases
How do people use these heaters?
- Small Homes and Apartments: They save space and energy.
- RV and Tiny Homes: Perfect for limited room.
- Supplemental Heating: Use one for a specific faucet, like a kitchen sink.
- Busy Households: Get plenty of hot water for showers and appliances.
They give you endless hot water. You don’t have to wait for a tank to refill. This is great for families.
Frequently Asked Questions
Q: Do electric tankless water heaters use a lot of electricity?
A: They use electricity only when you need hot water. This is more efficient than heating a tank all the time. They can use a lot of power at once, but only for short periods.
Q: How many GPM do I need?
A: It depends on your needs. For one shower, 2 GPM is good. For two showers at once, you might need 4 GPM or more.
Q: Can I install one myself?
A: Some models are easier to install. But it’s often best to hire a professional plumber or electrician. They ensure it’s safe and works right.
Q: How long do they last?
A: Electric tankless heaters can last 20 years or more. This is longer than tank heaters.
Q: What is the temperature rise I need?
A: Check your local cold water temperature. Then decide your desired hot water temperature. Subtract the cold from the hot. That’s your needed rise.
Q: Are they expensive?
A: The upfront cost can be higher than tank heaters. But they save you money on energy bills over time.
Q: Can I use one for my whole house?
A: Yes, if you choose a powerful enough model. You need to consider your total GPM needs.
Q: Do they work in cold climates?
A: Yes, but you need a model with a high enough temperature rise for your cold water.
Q: What maintenance do they need?
A: You might need to flush them yearly to prevent mineral buildup. This keeps them working well.
Q: Are they safe?
A: Yes, when installed correctly. They have safety features to prevent overheating.
In conclusion, every product has unique features and benefits. We hope this review helps you decide if it meets your needs. An informed choice ensures the best experience.
If you have any questions or feedback, please share them in the comments. Your input helps everyone. Thank you for reading.
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