Best 120V Tankless Water Heater (2024 Update)
If you’re looking for a tankless water heater that can provide hot water on demand without taking up too much space, a 120v tankless water heater might be the perfect solution for you. However, before making a purchase, there are a few factors to consider. Firstly, you'll want to make sure that the flow rate and temperature rise capabilities of the unit match your household's hot water demands. Secondly, you'll want to ensure that the installation process is simple and straightforward. Thirdly, you'll want to consider the unit's energy efficiency rating and operating costs.
Some questions that might come to mind when searching for the best 120v tankless water heater include: "What size unit do I need to adequately supply hot water to my household?" "Are all 120v tankless water heaters easy to install and maintain?" and "What are the operating costs associated with a tankless water heater compared to a traditional tank-style water heater?" By taking the time to properly research and consider these factors, you'll be more likely to find a unit that meets your needs and provides long-term cost savings.
10 Best 120V Tankless Water Heater
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Ideal for providing hot water instantly at the point of use, such as under the sink or in a shower.
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This product is ideal for providing instant hot water on demand and saving energy.
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Ideal for providing hot water at a specific location, like under a sink or near a shower.
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This product is ideal for providing on-demand hot water quickly and efficiently in residential or commercial settings.
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5
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It's ideal for providing hot water at a specific location without needing a bulky tank.
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6
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Ideal for providing instant hot water with constant temperature and remote control convenience using electric power.
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7
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Heating water in a small residential or commercial property without the need for a tank.
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8
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This product is ideal for providing hot water in small spaces, such as trailers or under sink cupboards.
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9
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It is ideal for providing hot water outdoors in remote locations where no electricity or traditional water heating system is available.
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10
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Ideal for providing hot water on demand in specific areas such as bathrooms, kitchens, and laundry rooms.
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1. Hotshot Mini Tank – Instant Hot Water!
Introducing the Under Sink Heater, the perfect solution for small spaces that require a lasting and stable supply of hot water. This electric water heater has a temperature range of 45°F-167°F, and it comes with an upgraded Relief Valve for added safety.
One of the standout features of this product is its energy-saving capabilities. It boasts advanced thermostop technology from Germany, which results in low standby loss power consumption and significant cost savings. Additionally, the EPS foaming technology used in its construction provides better insulation, ensuring that you can enjoy hot water without having to worry about an astronomical electricity bill.
The Under Sink Heater is built to last. Its stainless steel tank is highly resistant to corrosion caused by water, making it durable and less prone to leaks. Plus, it is lighter, stronger, and less likely to crack or bump, ensuring that it remains functional for a long time.
Safety and reliability are paramount when it comes to any electrical appliance, and the Under Sink Heater doesn't disappoint. It features overheating protection and an automatic cut-off mechanism that guarantees your safety. The simple knob operation and easy installation process make this product suitable for use in various settings, including kitchens, bathrooms, bars, schools, hospitals, offices, RVs, and more.
It is important to note that you need to verify that this model is the right size for your hot water needs and electrical requirements before making a purchase and installation. The Under Sink Heater has dimensions of 18"H x 12.2"W x 11"D inches, a tank capacity of 2.5 gallons, and 1/2 inch NPT connections. It operates at 1.5 kW, 120 Volts, and 13A, with a cord plug-in for added convenience.
2. Eco Hot Water On Demand – Stiebel Eltron
Introducing the Tempra 24 Plus – the ultimate solution to endless hot water supply for your whole house. This advanced Flow Control technology is an innovation patented by Stiebel Eltron, designed to automatically maintain the water temperature for constant comfort. This means that even if the hot water demand exceeds capacity, your hot showers will never be interrupted again.
The Tempra 24 Plus is a space and energy saver with its small, sleek white design. It will fit perfectly into any space without requiring venting. This eco-friendly unit saves energy with auto-modulation and the ability to electronically control water flow. The savings monitor even shows how much you save on energy costs.
Operating the Tempra 24 Plus is easy and noise-free. Simply activate the hot water heater with the electronic switch and enjoy a digital temperature display and preset temperature and memory buttons. The interior solid copper heating system does all the power work.
This specific model of the Tempra 24 Plus is 24kW, 240V, and requires a minimum recommended electric service of 150 A. It offers an output water temperature of 68° to 140°F. Check our guides below to compare features of our various Trend and Plus models, each available in different kW levels. Tempra Plus tankless water heaters can be set to limit the maximum hot water temperature to 109°F, which can be important in some installations to prevent the possibility of scalding.
Stiebel Eltron’s top-rated electric tankless water heaters perform with the highest standards for comfort and reliability. Our 7-Year Leakage and 3-Year Parts Warranties are included with purchase, ensuring that you can enjoy endless hot water supply for years to come.
Upgrade to the Tempra 24 Plus for a space-saving, eco-friendly, and reliable solution to your hot water needs.
3. Eemax Spex2412 Flowco 2.4 Kilowatt 120 Volt Electric Point Of Use Water Heater, White
The product being reviewed is a highly advanced and efficient water heater that is designed to meet the needs of modern households. With its advanced features and capabilities, it is the perfect solution for those who want a reliable and effective water heater.
One of the most impressive features of this water heater is its ability to adjust the temperature output based on the flow rate of the water. This means that you can enjoy a constant and consistent supply of hot water regardless of the flow rate, ensuring that you never run out of hot water when you need it the most.
Another great feature of this water heater is its SafeStart technology. This innovative technology ensures that the water heater only activates when it is needed, providing you with an energy-efficient and cost-effective solution for your hot water needs.
The water heater is also designed to be mounted in any orientation, making it easy to install and use in a variety of different settings. Additionally, it features self-diagnostics and intelligent controls that ensure optimal performance and reliability at all times.
With its compact size and on-demand activation, this water heater is the ideal choice for those who want a convenient and space-saving solution for their hot water needs. So if you're looking for a reliable, efficient, and innovative water heater that will meet all of your needs, look no further than this amazing product.
4. Ge Tankless Electric Water Heater – Diamond Gray
Looking for a reliable and energy-efficient water heater that can provide unlimited hot water on demand? Look no further than this tankless electric water heater. With its intuitive design and remote control, this water heater is easy to use and can be adjusted to meet your individual needs.
One of the key benefits of this tankless electric water heater is its ability to provide instant, continuous water flow, ensuring that you never run out of hot water when you need it most. And because it installs at the point of use, you can enjoy hot water right where you need it, without any wasted energy or resources.
With a performance of up to 0.7 gallons per minute (GPM), this water heater is powerful enough to run one faucet in multiple climates. This impressive performance is achieved through a combination of smart design and advanced technology, which allows the unit to heat water quickly and efficiently.
In addition to its impressive performance, this tankless electric water heater is also incredibly easy to use. The intuitive touch screen allows you to adjust the temperature and settings with ease, while the remote control feature allows you to control your unit from up to 30 feet away.
And because this water heater is designed to be energy efficient, it can help you save money on your energy bills while also conserving water. By only using energy when hot water is in use, this water heater helps to reduce your carbon footprint and protect the environment.
5. Ecosmart Pou 3.5 Point Of Use Electric Tankless Water Heater, 3.5kw@120-Volt, 6 X 11 X 3 Inch
Looking for a compact and efficient water heater that can provide hot water for one sink? Look no further than the POU 3.5 Electric Tankless Water Heater. This innovative water heater is designed to provide hot water at a rate of 0.5 gallons per minute, making it ideal for use in warmer climates where the demand for hot water is relatively low.
To ensure that the POU 3.5 Electric Tankless Water Heater operates safely and efficiently, it requires a 30 amp breaker and 10 AWG wire. Additionally, if you are planning to use the water heater in a colder climate where the demand for hot water is higher, we recommend upgrading to the POU 6 model.
With an amperage draw of 29 amps and a power output of 3.5 kW, the POU 3.5 Electric Tankless Water Heater is capable of delivering hot water quickly and efficiently. The connection fittings are 1/2" NPT, which makes installation easy and hassle-free.
One of the standout features of the POU 3.5 Electric Tankless Water Heater is its ability to provide a maximum temperature rise of 47.8°F at a flow rate of 0.5 gallons per minute. At a flow rate of 1 gallon per minute, the maximum temperature rise is 23.9°F, while at a flow rate of 1.5 gallons per minute, the maximum temperature rise is 15.9°F.
6. Remote-Controlled Daordaer Tankless Water Heater
Introducing the Instant Hot Water Heater – a compact, efficient and reliable solution for your hot water needs. With its powerful 5500W heating system, this electric tankless water heater is capable of supplying consistent and endless hot water in just 3 seconds, without the need for preheating. The maximum temperature can reach up to 55℃/131℉, providing you with instant comfort and relaxation.
This water heater features an ultra-slim and smooth appearance design, which is not only beautiful and elegant, but also highly functional. You can easily adjust the temperature using the remote control or touch screen, making it more convenient to use and safer to operate. The constant temperature water outlet has three-level power adjustment, ensuring that you're never left with cold or hot water.
This tankless electric water heater saves both space and energy, making it a great choice for any home. Its compact size, similar to that of a small suitcase, allows for easy installation in the bathroom, kitchen, or under the sink. The wall-mount design frees up valuable floor space, while its 99% thermal energy efficiency ensures that it only heats water when needed, unlike traditional tank heaters that constantly maintain water temperature even when not in use.
Installation is a breeze, thanks to the mini body and standard 1/2 interface. It can be directly connected to household conventional hose connectors, making it easy to install and use right away.
Safety is a top priority with this water heater. It comes equipped with high-temperature protection, dry heating protection, and electrical leakage protection, providing peace of mind knowing that you have safe, on-demand hot water at your fingertips. The electric and fluid systems are completely separated to prevent electric leakage and water pipe corrosion, further ensuring your safety.
7. Ecosmart Eco 8 Tankless Water Heater, Electric, 8-Kw – Quantity 1, 12 X 8 X 4
This high-quality product is designed to last for a long time, providing you with reliable use for years to come. It features a durable build that ensures it can withstand regular use and resist wear and tear. The product is also incredibly user-friendly, making it easy for anyone to use without any hassle or complicated instructions.
Manufactured in China, this product is made to meet high-quality standards and undergoes rigorous testing to ensure it meets all necessary safety requirements. You can trust that this product is made with care and attention to detail, ensuring top-notch performance.
The heating elements of this product are built to last, and they are threaded for easy replacement if needed. This ensures that you can easily maintain and repair the product as needed, without having to replace the entire unit. The activation flow of this product is 0.3 GPM, making it an efficient and effective choice for your needs.
8. Kenuos Mini Electric Water Heater – Compact & Efficient
The mini water heater is a safe and durable appliance that is perfect for kitchens, bathrooms, RVs and other similar settings. It is made of 304 stainless steel liner with less seams, making it strong enough to handle pressure and resistant to explosions, leaks, and other damages. The anti-leakage plug and multiple safety protection functions ensure that you are protected from the risk of burns, electric shocks, and other injuries.
The 3-gallon mini water heater is installed in the kitchen under sink counter cupboard and comes with an LCD screen that displays the working status. It operates at 110V/120V and has a sensing temperature control feature that allows the machine to automatically heat up the water to 167 ℉. Once it reaches the desired temperature, it enters into automatic heat preservation and constant temperature mode. This means that the machine will automatically control the temperature and supplementary cold water heating, making it convenient and easy to use.
The mini water heater also comes with an adjustable knob switch that ranges from 80 ℉ to 167 ℉, making it flexible and convenient to use. The switch is clear and easy to control, making it effortless to operate.
The mini water heater is also energy-saving and environmentally friendly. It consumes only 0.69 degrees of electricity when powered on and in heat preservation mode. Once it reaches the highest temperature of 167 degrees Fahrenheit, it enters into constant temperature and heat preservation mode, where the heat preservation can last for up to 24 hours when the power is turned on. Even if the power is turned off, the heat preservation time can last up to 2 hours.
The mini water heater has a compact body that is highly efficient. It comes with an extended stainless steel heating tube and a 1500W power output, which ensures fast and stable heating, meeting the water needs of various kitchens, bars, restaurants, bathrooms, RVs, and other similar settings. It takes only 6-13 minutes to heat up, which is fast and efficient.
9. Camplux 16l Outdoor 4.22 Gpm Digital Display Propane Gas Tankless Water Heater
This portable water heater from Camplux offers a convenient and efficient solution for instant hot water, wherever you may be. With an easy installation process that takes only 5 minutes, you can have hot water on demand in no time. The package comes complete with all necessary accessories, so you don't need to worry about any additional purchases.
With a flow rate of 4.22 gallons per minute, this tankless water heater can provide you with a generous supply of hot water in just a few minutes. It is designed to light up automatically when the water pressure is between 4.0-110 PSI, making it perfect for use in low water pressure situations such as camping or remote cabins.
Safety is a top priority with this water heater, as it comes equipped with a 6-in-1 protection system to ensure your family's safety. The flame failure device, anti-freezing protection, and over heating protection work together to prevent any mishaps. Additionally, the anti-freezing drain plug discharges any residual water to avoid freezing in cold areas during long-term maintenance. The gas supply is automatically shut off when high water temperature protection is triggered, preventing overheating and potential damage.
This water heater is also energy efficient, with maximum power output of 11,000 BTU/hour. The advanced combustion technology used in the propane water heater exchanger and main burner reduces gas consumption and burning noise by 11.5%. This means you can enjoy endless hot water without worrying about high energy bills.
It is important to note that to avoid gas leakage caused by improper sealing of the water heater, twining Teflon tape between gas regulator and gas inlet pipe is not recommended. Improper operation may cause the tankless water heater to catch fire, so always check for gas leakage before operation.
10. Rheem 3.5kw 120v Point Of Use Tankless Electric Water Heater
Looking for a compact and stylish water heater that can deliver the perfect temperature for your needs? Look no further than this top-of-the-line model, which features digital temperature control that lets you adjust the temperature in increments of 1 degree Fahrenheit. With a range of 80 to 140 degrees Fahrenheit, you can easily find the perfect temperature for your hot water needs.
If you're considering the RTEX04 or RTEX06 models, it's worth noting that these units are designed to provide output temperature only and are not thermostatically controlled. While they still offer excellent performance and reliability, they may not be the best fit for those who need more precise temperature control.
Regardless of which model you choose, you can rest assured that you're getting a top-quality water heater that will provide reliable and consistent hot water for years to come. So why wait? Upgrade your hot water system today and enjoy all the benefits of a high-quality water heater!
Best 120V Tankless Water Heater FAQs
Can a 120v tankless water heater be used for a large household?
It depends on the specific needs of the household. A 120v tankless water heater may not be able to provide enough hot water for a large household that requires a high volume of hot water for multiple simultaneous uses. However, if the household has low to moderate hot water demands and is willing to make some adjustments, a 120v tankless water heater may be sufficient. It's important to consider the flow rate and temperature rise of the unit, as well as the incoming water temperature, to determine if it can meet the household's hot water needs. Some manufacturers offer models with higher wattage and flow rates that may be better suited for larger households. Consulting with a licensed plumber or a professional to determine the appropriate size and type of tankless water heater for your household is recommended.
How does a 120v tankless water heater compare to a traditional water heater?
A 120v tankless water heater is a type of water heater that heats water on-demand without the need for a storage tank. In comparison to traditional water heaters, which store and heat a large amount of water in a tank, tankless water heaters are more energy-efficient and cost-effective.
One of the main advantages of a 120v tankless water heater is its compact size. Since it doesn't require a storage tank, it can be easily mounted on a wall, saving valuable space. Additionally, since it only heats water when it's needed, it can save energy and reduce utility bills, especially in households with low hot water demands.
However, a 120v tankless water heater may not be suitable for households with high hot water demands, as it may struggle to keep up with the demand. Additionally, installation costs for a tankless water heater may be higher than for a traditional water heater, as it may require additional electrical work or gas lines.
Overall, the choice between a 120v tankless water heater and a traditional water heater depends on individual household needs and preferences.
How much hot water can a 120v tankless water heater produce?
A 120v tankless water heater is typically designed to provide hot water on demand for a single point of use, such as a sink or shower. The amount of hot water that it can produce depends on its flow rate and temperature rise capabilities. Generally, a 120v tankless water heater can produce up to 1.5 gallons of hot water per minute with a temperature rise of around 50 degrees Fahrenheit. However, this can vary depending on the specific model and brand. It is important to note that a 120v tankless water heater may not be suitable for larger households or high-demand applications, as it may not be able to keep up with the demand for hot water. It is recommended to consult with a professional plumber to determine the best type and size of water heater for your specific needs.
What are the maintenance requirements for a 120v tankless water heater?
A 120v tankless water heater requires minimal maintenance, but it is essential to keep it in good working condition. The primary maintenance requirement is to flush the unit regularly to prevent mineral buildup. This buildup can reduce the efficiency of the unit and lead to damage over time. To flush the unit, turn off the power and water supply, then remove the cover and disconnect the water lines. Connect a hose to the unit's inlet and outlet valves and flush water through the unit for several minutes. It's also crucial to check the unit's filters regularly and clean or replace them as needed. Additionally, it's a good idea to have a professional inspect the unit annually to ensure everything is working correctly and make any necessary repairs. By following these maintenance requirements, you can extend the lifespan of your 120v tankless water heater and keep it working efficiently.
What are the top-rated 120v tankless water heaters on the market?
When it comes to 120v tankless water heaters, there are several models available on the market, each with its own unique features and benefits. However, some of the top-rated models include the EcoSmart ECO 11 Electric Tankless Water Heater, the Stiebel Eltron Tempra 12 Plus Electric Tankless Water Heater, and the Rheem RTEX-13 Residential Tankless Water Heater.
The EcoSmart ECO 11 is a popular choice for its energy efficiency and compact design. It is capable of providing hot water for one shower and one sink simultaneously and has a digital temperature control for precision.
The Stiebel Eltron Tempra 12 Plus is another highly-rated model that offers consistent hot water flow and temperature control. It is designed with advanced flow control technology to ensure efficient use of energy and has a sleek and modern design.
The Rheem RTEX-13 is a reliable and durable option that provides instant hot water on demand. It is also designed with a digital temperature display and self-modulating power control for energy efficiency.
Overall, these three models offer excellent performance and energy efficiency, making them some of the best 120v tankless water heaters on the market.
What is the cost of a high-quality 120v tankless water heater?
The cost of a high-quality 120v tankless water heater can vary depending on several factors. Generally, tankless water heaters are more expensive than traditional tank-type heaters due to their advanced technology and energy-saving features. The cost of a high-quality 120v tankless water heater can range from $500 to $1,500, depending on the brand, model, and features. Some of the factors that can affect the cost of a tankless water heater include the size of your home, your hot water usage, and your location. Additionally, installation costs may also vary depending on your plumbing setup and the complexity of the installation. It is always recommended to consult with a professional plumber or HVAC technician to determine the best tankless water heater for your needs and budget.
What is the installation process for a 120v tankless water heater?
The installation process for a 120v tankless water heater involves several steps. First, you need to shut off the power and water supply to the old water heater. Then, you need to remove the old water heater and dispose of it properly. Next, you need to mount the tankless water heater on a sturdy surface, making sure it is level and secure.
After that, you need to connect the water supply to the cold water inlet and hot water outlet of the tankless water heater. You may also need to install a pressure relief valve and a shutoff valve.
Finally, you need to connect the electrical power to the tankless water heater, following the manufacturer's instructions carefully. You may need to hire a licensed electrician to do this step.
It's important to note that the installation process may vary depending on the specific model and brand of the tankless water heater. It's recommended to consult the manufacturer's installation manual or hire a licensed professional to ensure proper installation and avoid any potential safety hazards.
What is the lifespan of a 120v tankless water heater?
The lifespan of a 120v tankless water heater can vary depending on several factors such as usage, maintenance, and the quality of the unit. On average, a tankless water heater can last anywhere between 10 to 20 years. However, with proper maintenance and care, some models can last up to 25 years.
It's important to note that the lifespan of a tankless water heater can also be affected by factors such as hard water, improper installation, and the frequency of use. Regular maintenance and cleaning, as well as addressing any issues promptly, can help extend the lifespan of your tankless water heater.
When purchasing a tankless water heater, it's also important to consider the warranty offered by the manufacturer. A longer warranty can indicate that the manufacturer has confidence in the quality and durability of their product. Overall, a 120v tankless water heater can provide a reliable and efficient source of hot water for many years with proper care and maintenance.
What is the most energy-efficient 120v tankless water heater available?
When it comes to energy-efficient 120v tankless water heaters, there are a few options available in the market. However, the most energy-efficient model would depend on various factors such as the size of your home, the number of people in your household, and your hot water usage habits.
One of the most energy-efficient 120v tankless water heaters available is the EcoSmart ECO 11 Electric Tankless Water Heater. This model is designed to provide continuous hot water on demand while using up to 60% less energy compared to traditional tank water heaters. It is suitable for small households with low to moderate hot water demand and can supply up to 2 gallons per minute.
Another option is the Stiebel Eltron 12 Plus Tempra Tankless Water Heater, which is also designed to deliver hot water on demand while using minimal energy. It has advanced flow control technology that ensures a constant output temperature regardless of the flow rate. It can supply up to 2.34 gallons per minute and is suitable for small to medium-sized households.
Ultimately, the most energy-efficient 120v tankless water heater for your home would depend on your specific needs and usage habits. It is best to consult with a professional plumber or HVAC technician to determine which model would be the best fit for your home.
What safety features should I look for in a 120v tankless water heater?
When you're looking for a 120v tankless water heater, safety should be one of your top priorities. Here are some important safety features to look for:
1. Overheat protection: This feature is designed to shut off the unit if the water temperature gets too high, preventing damage or potentially dangerous situations.
2. Anti-scald protection: This feature helps prevent accidental burns by limiting the temperature of the water that comes out of the unit.
3. Freeze protection: If you live in a cold climate, this feature is essential. It prevents the water in the unit from freezing and potentially damaging the unit or your pipes.
4. Flame failure protection: This feature shuts off the gas supply to the unit if the flame goes out, preventing gas leaks and potential explosions.
5. Exhaust gas monitoring: This feature ensures that harmful exhaust gases are safely vented outside, protecting your family from carbon monoxide poisoning.
By choosing a tankless water heater with these safety features, you can have peace of mind knowing that your family and home are protected.
