Top 10 Best Tankless Water Heaters In 2020 Reviews

Are you in need of a heater that is designed to deliver an unlimited supply of hot water without heightening your energy bills? Or do you need a hot water supply in your home but you do not have enough space to install a conventional water heater? Either way, you can solve your troubles with a tankless water heater.

Tankless systems are a perfect investment to people who need a consistent supply of hot water without having to deal with high heating bills and water bills. Also, these units do not require a lot of space, which makes them suitable for use in small apartments and bathrooms. So, let’s have a look at the best tankless water heaters available for you to choose from so that you can avoid settling for a unit that will leave you regretting after investing in it.

10. Sio Green IR260 v2 POU Infrared Electric Tankless Water Heater

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Designed to deliver endless gallons of hot water, the IR260 v2 POU Infrared Electric Tankless Water is a perfect choice for the best tankless water heater for use in restaurants, hotels, and stores. The unit features a compact design with a length of less than 20″. This makes it a perfect choice for use in kitchens, small bathrooms, or small places that need a booster.

Another feature that makes this a perfect tankless water tank is the zero-maintenance design. In particular, the heater can create heat without direct contact with metals, which helps to prevent corrosion and limescale deposit. The heater offers four power levels to enhance easy customization of the water-heat. It arrives with a water flow regulator to enhance easy temperature adjustment. Because of the Insta infrared heating design, you can expect the heater to help you save both time and money.

9. Camplux 5L 1.32 GPM Portable Outdoor Tankless Propane Water Heater

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Whether you want to enjoy an outdoor shower, bath your dog, or offer your horse a relaxing shower, you can be sure to get adequate hot water for these tasks using the BD158 Propane Tankless Gas Water Heater. The heater’s maximum temperature is 114.8°F while the minimum temperature is 46.4°F. It features a low water pressure ignition enabling it to function with a 2.8PSI water pressure.

The heater adopts a 1.58GPM flow rate enabling it to provide endless hot water with optimal energy efficiency. You can get it when looking for a portable tankless water heater because of the stainless folding handle. Furthermore, the heater is a perfect choice to a tankless water heater that is safe to use because of the anti-freezing protection, flame failure device, and oxygen-depletion safety shut-off protection.

8. Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater

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An ideal energy saving appliance that serves as an answer to the best tankless water heater is the RTEX-13 Residential Tankless Water Heater. The model includes external controls that allow you to adjust the heating temperature in increments of 1°F. Also, there are copper immersion, two heating elements designed to guarantee durability. You can get the heater when looking for a tankless water heater that is easy to install. The reason is its ½ NPT adapters and 3′ electric cable designed to enhance easy installation. Also, the heater is a perfect choice for one that is easy to replace because of the threaded design.

7. Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater

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Get endless hot water supply when you adopt the ECO 36 Electric Tankless Water Heater. This heater utilizes a self-modulating technology and digital temperature control in 1° increment. As a result, you can expect to gain complete control of hot water, to guarantee efficient cost savings. Another advantage of the water heater is its small size. This means that space should never be an issue when you get it.

The heater includes easy to maintain and replaces elements to guarantee easy maintenance. It is made using copper and stainless steel components. As a result, you can get it as the answer to a tankless water heater that is designed to last. The Eco 36 is a 6GPM tankless water heater designed to provide on-demand endless hot water. It can handle six gallons per minute, which allows you to run four showers and a sink simultaneously. The heater features a digital temperature control enabling you to set your temperature the way you like it.

6. Thermoflow UT10 2.6-Gallons Electric Mini-Tank Water Heater for Under Sinks, 1.5kW at 120 Volts

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Minimize the wait for hot water once you incorporate the UT10 2.6-Gallons Electric Mini-Tank Water Heater. Featuring a 2.6gallon point-of-use mini-tank, the heater can fit under the sink so that it can provide hot water where you need it. Also, the heater includes a stainless steel tank and heating element to guarantee easy replacement, efficiency, and durability.

You can get the unit when looking for a tankless water heater that is designed to enhance low power consumption. The reason is its advanced Thermostop technology that allows the heater to stop heating or reheating when the set temperature is reached, to eliminate wastage of power.

Also, the heater adopts an EPS foaming technology. Because of this, you can expect it to heat water fast and deliver a fast recovery rate to eliminate long waits for hot water. The model features an active protection circuit designed to guarantee a safe installation. Its selectable temperature ranges from 45°F to 167°F while the heater offers an energy saving mode and frost protection mode to minimize the power consumption.

5. Tankless Water Heater, Gasland BS158 1.58GPM 6L Outdoor Portable Gas Water Heater

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Enjoy a warm hand wash or washing the dishes using hot water without worrying about your safety or home’s safety once you adopt the BS158 1.58GPM 6L Outdoor Gas Water Heater. The heater incorporates several safety features to ensure your family’s protection. Among the integrated safety features is; an overheating protection that enables the gas supply to shut off automatically when the water temperature exceeds 167°F.

Also, there is an anti-freezing protection feature. In particular, the heater features an anti-freezing drain plug designed to discharge the residual water to avoid freezing in cold areas. You can carry the heater for use during camp trips or to the beach. The reason is the compact and lightweight design, as well as the mounting bracket that makes it easy to hang.

The heater’s maximum output power is 41000BTU/HR, which means that you can expect it to deliver hot water instantly. The main burner and propane water heater exchanger feature an advanced combustion technology designed to reduce the burning noise and gas consumption.

4. Eccotemp i12-LP water heater, 4 GPM, Black

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Heat your water wherever you need it using the Eccotemp i12-LP water heater. This is a gas powered tankless water heater with a 4GPM flow rating. Because of this, you can get it for use in small to medium hot water production where more than one appliances need heated water at the same time. The unit features a sleek black tempered glass front panel.

The panel features automatic temperature controls and a touch screen. The screen displays the GPM flow and output temperature, which assures you of getting a heater that is easy to use. Further, the i12-LP uses standard ½” NPT water fittings and includes a horizontal venting. For, this reason you can further get it with an assurance of easy installation. The child lock technology is another plus designed to guarantee safety. Also, the heater plugs into standard 110V electrical outlets using a UL-listed cord assuring you of safety.

3. Eccotemp L5 Portable Tankless Water Heater Shower

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Enjoy hot water wherever you go once you get the L5 Tankless Water Heater Shower. This is a compact and lightweight water heater shower. It runs on a standard 20lbs liquid tank. The shower is equipped with an electronic ignition and derives its power from two “D” cell batteries. You can get the water heater shower when you are looking for one that is safe to use. The reason is the safety shut off feature that leaves the unit to turn off when it runs longer than 20 minutes or becomes tilted more than 45°. The water heater shower features a low-pressure activation of 20PSI, which makes it easy to connect to standard garden hoses.

2. Bosch Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon

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Meet daily hot water needs without any hassle when you take advantage of this mini-tank water heater. The heater fits under sinks allowing you to get hot water when it is required. Additionally, you can mount it on the wall, shelf, or floor, which means that you can customize the installation to meet your needs. You can get the heater when looking for a tankless water heater that is easy to maintain and designed to last because of the premium glass-lined materials.

Also, the heater is a perfect choice for one that helps to eliminate the long waits for hot water because of the fast recovery rate. The heater features a thick CFC-free foam insulation designed to ensure maximum energy efficiency. It comes in three compact sizes and features 36″ to 37″ cords that plug into a 120Volts outlet to guarantee independent installation.

1. EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology

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Forget about running out of hot water when you get the ECO 11 Electric Tankless Water Heater. The heater operates only when hot water is required, which allows you to save up to 50% in water heating costs. It features a wall-mounted design. Because of this, you can expect it to free up the floor space, which helps to save space. Further, the heater adopts a self-modulating technology. This allows it to use the required energy only, which makes it a perfect choice when it comes to energy savings.

The heater features a 2GPM flow rate, which makes it suitable for temperatures above 67°F. You can use it for multiple or single applications depending on the climate. For instance, you can use it to handle two simultaneously running sinks and shower during the warm weather and two simultaneously running sinks during the cold weather.


There are several tankless water heaters on the market, but it only takes the best model for you to get the best value for your money. For this reason, I would recommend that you give a try to the reviewed products having in mind that they incorporate the features designed to offer you a great user experience and the fact that these units have left a lot of users smiling and claiming that these models are a worthy investment.

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