Best Electric Tankless Water Heater in 2020

Best Electric Tankless Water Heater
Written by Anne Frank

In a modern home with a traditional water heater with a storage tank may not be large enough to keep up with demands. When deciding on an upgrade, give strong consideration to an electric tankless water heater. Electric tankless water heaters, also known as on-demand water heaters because they don’t usually store hot water, create hot water on demand, remaining inactive when there is no need.
There are principles for Electric tankless water heaters which are a point of use and whole house use. in which Electric tankless water heaters are available for both but the point of use is used for the single or small use of water where the whole house heater is used for all over the house chaos applications.
Electric tankless water heaters are more use due to the efficiency and durable for a long period with the low cost of purchase and use. The less use of energy consumption and size is efficient for the Buyer.
As the size for the electric tankless water heaters is less and capacity and the limit of the water to heat is more. Electric tankless water heaters have a remote system which is more beneficial for the home. such as the remote bathroom and the hot tubs, the dishwashers and the clothes washer and the solar water heating and many other benefits of the electric tankless water heaters.

Top 10 Best Electric Tankless Water Heater in 2020 is Shown Below in this Guide:

1. Ecosmart ECO 27

Ecosmart ECO 27

The ECO 27 tankless water heater of the eco-smart brand is energy efficient that it can be suitable and will be useful for the single-family. the eco 27 tankless water heater offers the accurate temperature control and is self-modulating. the ECO 27 has digital control for the temperature control which is adjusted by the 1-degree increment for the precise and comfortable control over the temperature. the ECO 27 which is an energy-efficient model while will provide 99.8 % energy efficiency and the 0.2 of energy will be consumed or maybe get lost during the use.

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Key Features:

• ECO 27 Digital Temperature Control.
• Ecosmart provides a lifetime warranty for the water heater parts.
• EcoSmart ECO 27 provides 50% heating cost savings.
• The Eco 27 can heat 11 liters per minute.

2. The Rheem RTEX 13

The Rheem RTEX 13

The Rheem RTEX 13 is a concise electric tankless water heater. The RTEX 13 can be concisely installed it in a cabinet or sink it in a home, office, boat. The panel built into the front of the unit can control the temperature .the heater has a thermostat dial that can adjust temperature over nine settings. The box will include a 3-foot electric cable for the installation. The Rheem RTEX 13 can be useful for residential or industrial applications. It can be useful for housing and apartment units. the Rheem RTEX 13 modulates power consumption during the continuous hot power supply. It is a space-saving tankless water heater to replace the bulky and ineffective water heaters.

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Key Features:

Digital thermostatic control with LED display
• 99.8 energy efficiency to adjust the temperature in increments.
• Self-modulating power control

3. The Bosch Tronic 3000

The Bosch Tronic 3000

The Bosch Tronic 3000 is a point-of-use under-sink tankless water heater which is in four concise sizes which can be wall-mounted under your sink and in cabinet spaces. These tankless water heaters are 98% efficient and no temperature or pressure relief valve is necessary as it can manage internally functioned. The Tronic 3000 has ensured safety and long-life. Having power ranging from 3.2 KW to 12kW, you can adjust based on your needs and incoming water temperatures, without breaking the bank with your monthly utility bills.

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Key Features:

• Reliable Point-of-Use Heat
• Great for Small Spaces
• Thermostatic Control is 98%
• Minimum Required Circuit Breaker Amperage is 50.

4. Titan SCR2 N-120

Titan SCR2 N-120

Titan SCR2 N-120 is a very small tankless electric water heater, but that’s not a testament to its abilities. the Titan SCR2 N-120 is the most power among other units in the SCR2 line-up. Yet it has an energy rating of 99.5% that will allow you to save money over time. It’s versatile and good for homes with up to 3 bathrooms It has a maximum flow rate of 4.0 GPM at a 20 degrees F temperature rise which will be a more effective and concise underrate. It features a push-button for setting the temperature, which the heater displays as a low-to-high graph by which the temperature and pictorial representation will be shown.
The Titan SCR2 N-120 is ideal for homes in warmer climates, mainly due to its requirement of inlet water temperature of 65 degrees F. It has a 10-year warranty on water-carrying components due to the inlet requirement. It also looks great and will complement other items in your home, like a good wine chiller.

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Key Features:

• Digital display for easy use.
• Hard water resistance.
• Resettable thermostat manual option.
• An average flow rate of 13-15 per minute.

5. Stiebel Eltron DHC E-12

Stiebel Eltron DHC E-12

Stiebel Eltron DHC E-12 water heater offers on-demand hot water in both warm and cold climates. Its 99% efficiency rating allows for up to 20% energy savings when comparing it to a tank water heater which will reduce the bills drastically by the low power consumption. It comes with a 3-year parts warranty for residential and commercial applications that will get exchangeable or the change in the product.
The Stiebel Eltron DHC E-12 has a temperature knob that lets you adjust between 86 degrees F and 125 degrees F to efficiently use it for chaos. It works fast so that you can quickly switch from a comfortable temperature to a level suitable for commercial health code use to make a change in the component temperature and functioning. It has a flow rate of 1.5 GPM, which is just enough for a hot shower to other household works.

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Key Features:

• Electronic flow switch.
• Advanced microprocessor controls.
• Solid copper heat exchanger.
• Concise point of use tankless heater.

6. Atmor AT-D18TP-AZ Thermopro

Atmor AT-D18TP-AZ Thermopro

The Atmor AT-D18TP-AZ Thermopro is an electric tankless water heater that offers safety on top of hot water. It comes with an IP54 certification, which means it’s safe against splashes and electric current with the proper safety resistance. This allows you to install in near showers and sinks.
The Atmor AT-D18TP-AZ Thermopro provides an on-demand hot water supply without using power when not needed, resulting in up to 50% energy savings as opposed to a tank water heater. This Atmor model also features a digital panel showing the temperature on the screen. It has a maximum flow of 3.7 GPM, which is enough for 1 shower and 1 faucet.

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Key Features:

• Digital temperature control
• Smart flow and self-modulating technologies for high thermal efficiency.
• 18kW/240V, 3.7 GPM capacity.

7. Westinghouse 11 GPM

Westinghouse 11 GPM

Westinghouse 11 GPM tankless heater is a rival traditional storage heater which is gas-powered. Using natural gas, these heaters tend to act more quickly so you don’t have to wait as long for the hot water to use. The Westinghouse 11 GPM doubles the average flow rate of most tankless heaters with the capability of heating up to 41 liters per minute. If you want a single tankless heater to handle all of your hot water needs, this one is it to fulfill the more daily need of water.
The Westinghouse Residential Tankless produces continuous hot water and has a 10 to 1 turndown ratios in which the industry has more ratio. It is also equipped with a highly innovative Water leak detector which is precautional.

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Key Features:

• Highly innovative Water leak detector.
• Durable high-grade stainless steel heat exchanger.
• Freeze protection.

8. Eccotemp EM-2.5

Eccotemp EM-2.5

The Eccotemp EM-2.5 is a point of use Mini-Tank Water Heater with a tank capacity of 11 liters (3 gallons ) and is designed to supply on-demand hot water to any faucet without the wait for a second. Its small, concise and lightweight design allows the Eccotemp EM-2.5 to be perfect for residential, commercial and industrial chaos. The Eccotemp EM-2.5 Mini-Tank Water Heater can supply hot water for up to two sinks or can be plumbed in series with your existing hot water system to get instant hot water whenever you need it. Equipped with easy and accessible temperature controls and a minimal recovery time of 20 minutes for the controls to take place in System. This Eccotemp Mini 2.5 Tank Water Heater is designed to operate at a maximum of 150 psi water pressure.

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Key Features:

• Frustration-Free Packaging
• Manual Adjustable temperature 50F-140F
• 99% Energy Efficient
• Includes T&P Valve

9. Sio Green SIO14

Sio Green SIO14

Sio Green SIO14 Infrared Tankless Electric Water Heater remains to be one of the top-rated tankless electric water heaters. SIO green SIO14 comes with a high-quality component. Sio Green SIO14 is made of nonmetallic corrosion resistance tubing that passes the threat into the water through the heat exchanger. SIO14 has the same process where it comes with Automation Modulating Technology. Sio Green SIO14 comes in one size where the package dimension is 25.5 x1 6.8 x 9.4 inches, an ideal size even for small storage, boosters or sinks. Sio Green SIO14 can easily save up to 60% energy use per month which can save quite a lot since the model can last over 10 years.

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Key Features:

• Nonmetallic corrosion resistance tubing.
• Automation Modulating Technology.
• Smart modulation technology

10. Marey ECO 150

Marey ECO 150

Marey ECO 150 capacity power up to two standard showers and a faucet. Marey ECO 150 provides easy management and simple adjustments on an LCD Panel allow you to program the exact desired water temperature thereby optimizing energy consumption. Marey ECO 150 has a patented heating element with a stainless steel water channel. This high-quality component is corrosion resistant and reduces hard water build-up from chlorine and calcium that will increase the effect on water.

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Key Features:

• Corrosion-resistant.
• Activated by water pressure.
• Amp Double Pole breaker.

Quick Review
  • Ecosmart ECO 27
  • The Rheem RTEX 13
  • The Bosch Tronic 3000
  • Titan SCR2 N-120
  • Stiebel Eltron DHC E-12
  • Atmor AT-D18TP-AZ Thermopro
  • Westinghouse 11 GPM
  • Eccotemp EM-2.5
  • Sio Green SIO14
  • Marey ECO 150


Nowadays the electric tankless water heaters are accepted by the peoples for there residential and industrial chaos. Tankless water heaters, also provide hot water only as it is needed. So these are some of the electric tankless water heaters which are size and cost-efficient. So we provide these products for convenient use and satisfy requirements and needs.

About the author

Anne Frank

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