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Best 100 Gallon Electric Water Heater (2024 Update)

If you’re looking for a reliable and efficient water heating solution, consider an electric water heater. The market offers a variety of different electric water heaters, but the best 100 gallon electric water heater can provide ample hot water for larger households and commercial applications. However, before purchasing a 100 gallon electric water heater, there are a few factors to consider.

Firstly, consider the size of the space where the water heater will be installed. A 100 gallon electric water heater is quite large and requires a significant amount of space. You’ll also need to ensure that the electrical connections are up to code and that the water heater can accommodate the electrical load. Secondly, consider the energy efficiency of the water heater. A more efficient model can save you money on your monthly energy bills. Other factors to consider include the water heater's lifespan, warranty, and maintenance requirements.

Do you run a commercial kitchen that requires a large amount of hot water? Or maybe you’re a homeowner with a large family that's always in need of hot water? Whatever the case may be, a 100 gallon electric water heater might just be the perfect solution for your needs. So, are you ready to stop running out of hot water in your home or business? Keep reading to learn more about the best 100 gallon electric water heaters on the market, and how they can benefit your household or business needs.

10 Best 100 Gallon Electric Water Heater

# Product Image Product Name Product Notes Check Price
1
It is ideal for providing hot water in small spaces like RVs, boats, apartments, and workshops.
2
Ideal for providing hot water to a kitchen sink in small spaces or for point-of-use applications.
3
Ideal for providing hot water at specific locations such as bathrooms, kitchens, and laundry rooms.
4
This product is ideal for providing instant hot water in small spaces, such as under sinks.
5
The product is ideal for commercial water heating applications that require a large 100-gallon capacity and use natural gas.
6
Ideal for providing on-demand hot water, saving energy and space, and delivering a flow rate of 2.15GPM at 35°F rise.
7
This commercial water heater is ideal for providing large amounts of hot water for businesses or industrial settings.
8
Ideal for providing on-demand hot water to your entire home, or specific areas like bathrooms and showers.
9
Ideal for commercial use as a natural gas-powered water heater with a large 100 gallon capacity.
10
Ideal for residential use providing ample hot water supply for a medium-sized family.
It is ideal for providing hot water in small spaces like RVs, boats, apartments, and workshops.
Ideal for providing hot water to a kitchen sink in small spaces or for point-of-use applications.
Ideal for providing hot water at specific locations such as bathrooms, kitchens, and laundry rooms.
This product is ideal for providing instant hot water in small spaces, such as under sinks.
The product is ideal for commercial water heating applications that require a large 100-gallon capacity and use natural gas.
Ideal for providing on-demand hot water, saving energy and space, and delivering a flow rate of 2.15GPM at 35°F rise.
This commercial water heater is ideal for providing large amounts of hot water for businesses or industrial settings.
Ideal for providing on-demand hot water to your entire home, or specific areas like bathrooms and showers.
Ideal for commercial use as a natural gas-powered water heater with a large 100 gallon capacity.
Ideal for residential use providing ample hot water supply for a medium-sized family.

1. Camplux Me40 Mini Tank Electric Water Heater 4-Gallon With Cord Plug,120 Volts

The Camplux electric water heater is an excellent choice for those who want to save on energy and money. Its built-in insulation foam reduces heat loss, making it an energy-efficient option. The 4-gallon mini-tank is perfect for point-of-use applications, providing hot water right where you need it.

This electric water heater has a high-quality built and an elegant design. Its glass-lined tank ensures a long service life, while its streamline design cover adds a touch of elegance to your kitchen. It is also easy to maintain, making it a practical choice for any home.

Safety is a top priority, and this water heater has UL approval safety features. The thermostat control allows you to adjust the water temperature to your liking, while the high-limit device provides protection against overheating. The CSA listed Temperature & Pressure relief valve included with the unit ensures added safety.

Installation is a breeze with this water heater, as it can be shelf, wall, or floor mounted. The 43.3'' cord plugs into a 120-volt outlet for independent installation or inline with a large hot water source. Its maximum water pressure is 150 PSI, making it a reliable and efficient option for your hot water needs.

The Camplux electric water heater is easy to install. Simply tap into the cold water line and install the water heater directly at the sink to provide hot water. Its product dimensions are 11.75" W x 22" H x 10.38" D, making it a compact option for any home.

2. Hot Sink: Thermoflow Mini Electric Water Heater

Introducing the 4 gallon point-of-use mini-tank hot water heater, perfect for providing hot water right where you need it. With a stainless steel tank and heating element, this mini-tank is designed for efficiency, durability and long life service. The relief valve has been upgraded for added safety and peace of mind.

Save energy with the low stand-by loss power consumption and advanced thermostop technology from Germany. The mini-tank is equipped with an EPS foaming technology that heats water quickly and provides better insulation. This means a fast recovery rate that eliminates long waits for hot water at your sink.

Safety and reliability are top priorities with this mini-tank hot water heater. It has over-heat protection and an auto cut-off electricity feature if hot water does not come out. The mini-tank is also IPX24 water proof, has a 2.6ft plug in cord and is suitable for use in the kitchen, bathroom, bar, school, hospital, office and RV.

Before purchasing and installing, please verify that this model is the right size for your hot water needs and electrical requirements. The mini-tank hot water heater has dimensions of 18H x 12.2W x 11D inches, weighs 14 lbs and has 1/2 inch NPT water connections. Its electrical requirements are 1.5 kW and 120 volts, with a maximum pressure of 150PSI and nominal current of 13A.

Upgrade your home or office with this reliable and efficient 4 gallon point-of-use mini-tank hot water heater.

3. Ariston Andris 2.5 Gallon 120-Volt Corded Point Of Use Mini-Tank Electric Water Heater

This product is a highly efficient and reliable solution for providing hot water at the point of use. Its compact design allows it to be easily mounted on the wall or floor, and it comes with a wall bracket for added convenience.

One of the key features of this product is its ability to provide immediate hot water at the point of use, making it an ideal choice for both booster and standalone installations. The installation process is also incredibly simple, as it can be easily installed right at the point of use with a water connection and standard 110/120 Volt outlet.

One of the standout benefits of this product is its 6-year limited warranty on the tank and 2-year warranty on parts, ensuring peace of mind and a long-lasting solution for hot water needs.

In addition, this product features TitanShield exclusive technology, which fully protects the inner surface against corrosion, ensuring longevity and durability. The robust and environmentally safe insulation also increases energy efficiency, making this product not only reliable but also cost-effective.

4. Led Tankless Water Heater – Camplux Te04

The small water heater with a smart and considered design is perfect for under sink installation. It features a smart touch control and LED display, making it easy to use. The minimum water flow required for activation is only 0.4 GPM, making it ideal for a single sink.

The instant electric water heater requires a connection of 1* 40A circuit breaker and 8 AWG wire. It can be mounted at various angles and is ideal for use in the kitchen, wet bars, schools, hospitals, hair salons, and boats. Please make sure that the product dimensions of 7.8" x 6.3" x 3.9", and water pipes fitting (1/2" NPT male) are suitable for your needs.

This 3.5kW tankless water heater is reliable and durable. It features five protections, is NFS approved, and offers lead-free water. The ETL safety certification ensures that the leakage and overheat protection device keeps you safe. The stainless steel and copper components are of high quality and ensure efficiency and durability.

The on-demand water heater only heats water when you need it, which means no waiting for preheat. It provides consistent hot water with a temperature rise of 1.0 GPM at 22°F. It is easy to get hot water between 85°F – 194°F in seconds. This way, you can enjoy instant and endless hot water.

The rotatable LED display and touch control panel make it easy to read the output water temperature in real-time and set the ideal temperature with just one finger. Please note that this mini water heater is only suitable for sink use, not for bathing.

5. Rheem G100-200 Natural Gas Universal Commercial Water Heater, 100 Gallon

If you're in search of an efficient and versatile water heating solution, consider the 199,900 BTU water heater. With its high BTU output, this water heater is capable of meeting the demands of even the most demanding households or commercial establishments.

Featuring a universal tank design, this water heater can be used in a variety of applications, from homes to businesses. The universal space saver design ensures it can fit in small spaces, making it a great option for those with limited space.

The multi-flue tank design is patented and maximizes the transfer of heat from the burner to the water, ensuring optimal efficiency. The low profile automatic flue damper helps regulate the flow of air in and out of the water heater, further enhancing its performance.

With its durable construction and reliable performance, this water heater is a great investment for anyone in need of a reliable and versatile water heating solution. Its high BTU output ensures fast and efficient heating, while its low profile design makes it easy to install in a variety of applications.

6. On Demand Hot Water Heater, Energy Efficient.

Introducing the Endless On Demand Hot Water system, the perfect solution to never running out of hot water when you need it. With this system, you can enjoy consistent hot water that is continuously monitored for temperature and flow rate, ensuring efficient heating and stable performance. This system requires 2 sets of double-pole 30AMP breakers for installation.

Designed to last long and prevent leaks, the Endless On Demand Hot Water system features an alloy metal housing and water ports. The heating element is separated from the water tube, significantly reducing scale, corrosion, and mineral buildup on the element, resulting in better performance and low maintenance.

Say goodbye to high water heating costs and bulky tanks with the Endless On Demand Hot Water system. Its self-modulating technology regulates the amount of energy required to heat water only when you need it, resulting in 99% efficiency and up to 60% savings on water heating costs when compared to traditional tank water heaters. This wall-mounted, compact system is perfect for any space and saves valuable floor space, fitting into tight spaces with ease.

Installation of the Endless On Demand Hot Water system is quick and easy. It is ETL certified with overheating protection and auto-stop heating when no water is detected. The system is designed with quality workmanship for leakage protection, ensuring safe and reliable operation for years to come.

This system has an output of 11 kilowatts at 240V and draws a maximum of 46 amps. It features 1/2” NPT male ports and requires 12AWG wire to 2 double-pole 30AMP breakers, making it ideal for providing hot water for a bathroom, small sink, office break room, and other point-of-use or low-flow applications.

Experience endless hot water and enjoy the comfort and convenience you deserve with the Endless On Demand Hot Water system.

7. Rheem G100-200 Lp Propane Universal Commercial Water Heater, 100 Gallon

The product being reviewed is a powerful and efficient water heater designed to provide ample hot water for a variety of applications. With a massive 199,900 BTU rating, this water heater is capable of heating water quickly and efficiently, making it an ideal choice for busy households and commercial settings alike.

One of the key features of this water heater is its universal tank design. This design allows the unit to be installed in a variety of different locations, making it a versatile and flexible option for any space. Additionally, the unit features a universal space saver design, which helps to minimize its footprint and make it a great choice for smaller spaces where every inch counts.

Another unique feature of this water heater is its patented multi-flue tank design. This innovative design helps to improve the unit's efficiency by maximizing heat transfer and minimizing heat loss. With this design, the water heater is able to heat water quickly and effectively while using less energy, which can help to reduce energy bills and save money over time.

Finally, the low profile automatic flue damper on this water heater helps to further improve its efficiency by preventing heat loss through the flue. This feature helps to keep hot air inside the unit where it belongs, which can help to reduce energy waste and improve overall performance.

8. Instantflow: 18kw Electric Tankless Water Heater

Introducing the 18KW Instant Water Heater, a powerful and efficient electric tankless water heater that provides ample hot water in seconds. With an impressive 18kW heating system, this water heater is the perfect companion for those looking for an endless supply of hot water without the wait or temperature fluctuations during showers. It is ideal for single showers, sink faucets, dishwasher, washing machines, or even for whole-house use.

This instant hot water heater is designed with space-saving in mind. Its compact size makes it the perfect fit for kitchens, schools, hospitals, and hair salons. It is tankless and provides instant heating for on-demand hot water, eliminating pre-heating and standby heating loss, which makes it energy-saving. Please note that the 18KW electric tankless water heater is designed for 240V only and has dimensions of 10.24" (W) x 15.16" (H) x 3.7" (D), with plumbing connections of 3/4" NPT.

The 18KW electric tankless water heater is designed with user convenience in mind. It comes equipped with a degree conversion button that allows Fahrenheit and Celsius conversion through touch screen operation. This feature is perfect for users who prefer to check and choose the temperature according to their habits.

Installation and operation of the 18KW electric tankless water heater are a breeze. It comes with a digital display and touch control panel that makes temperature setting an easy job. Useful information on the screen helps users to fully understand the working status, eliminating the need for difficult operations without instructions.

Safety is the top priority with the 18KW electric tankless water heater. It is equipped with multiple protection measures to ensure user safety. In the event of the outlet water temperature reaching over 153F/67C, the electricity will be cut off to avoid scalding, and the screen will display E1. The appliance will automatically start working again when the temperature drops to the set temperature. The 18KW electric tankless water heater is ETL listed for safety.

The 18KW tankless water heater is versatile and can be installed anywhere as a point of use to avoid energy and water waste. Its compact size makes it perfect for whole-house use, bars, schools, hospitals, communities, and hair salons.

9. Commercial Grade Natural Gas Water Heater – 100 Gal

Looking for an efficient and durable water heater that can provide you with a steady supply of hot water? Look no further than this exceptional product. Boasting an impressive 80% thermal efficiency, this water heater delivers exceptional performance, ensuring that you have access to hot water whenever you need it.

With a flow rate of 194 gallons per hour at a 100-degree rise, this water heater is perfect for families or households that require a large amount of hot water on a regular basis. Whether you need hot water for washing dishes, taking a shower, or doing laundry, this product has got you covered.

One of the standout features of this water heater is its inner tank, which is glass-lined with Dura-Glas for optimum protection from the effects of corrosion. This ensures that your water heater will last for years to come, even in areas with hard water or other harsh conditions.

Another great feature of this water heater is its self-cleaning turbulence inducing cold water inlet-tube. This helps to diminish hard water sediment deposits, ensuring that your water heater runs efficiently and effectively for years to come.

10. Reliance Water Heater Co 6-30-Eolbs 100 30 Gallon Electric Water Heater

Introducing the Pex Polymer Lined Heat Trap Nipples with Aluminum Anode Rod, an energy-efficient solution to your water heating needs. With a high 95 energy factor, this model, numbered 6-30-EOLBS 100, ensures that you get the most out of your energy consumption, resulting in lower utility bills and a smaller carbon footprint.

The Pex Polymer lining in the heat trap nipples provides excellent heat retention, ensuring that the water stays hot for longer periods. This feature is perfect for those who need hot water on demand, saving them time and money. Additionally, the aluminum anode rod helps prevent corrosion within the tank, extending the life of the water heater.

This model's specifications are impressive, with a 30-gallon capacity that can accommodate the hot water needs of a small household. The 6-year warranty provides peace of mind, knowing that the product is backed by the manufacturer.

Best 100 Gallon Electric Water Heater FAQs

Are there any energy-saving options available for 100-gallon electric water heaters?

Yes, there are energy-saving options available for 100-gallon electric water heaters. One of the most effective ways to reduce energy consumption and save money on utility bills is to install a tankless water heater. Tankless water heaters are known for their energy efficiency because they only heat water when it is needed, rather than constantly maintaining a large tank of hot water. This can lead to significant savings on energy costs over time. Another option is to install a heat pump water heater, which uses electricity to move heat from the air or ground to heat water, rather than generating heat directly. Heat pump water heaters can be up to three times more efficient than traditional electric water heaters, and they also offer the added benefit of cooling and dehumidifying the surrounding air. Finally, adding insulation to your water heater tank and pipes can also help to reduce heat loss and improve energy efficiency.

Can a 100-gallon electric water heater be installed in a residential home?

Yes, a 100-gallon electric water heater can be installed in a residential home. However, it is important to consider the size and capacity of the water heater in relation to the water usage needs of the household. A 100-gallon water heater is typically suitable for homes with 5 or more people, or for homes with high hot water demand, such as those with multiple bathrooms or large soaking tubs.

It is also important to ensure that the home's electrical system is capable of handling the power requirements of a 100-gallon electric water heater. This may require upgrading the electrical panel or wiring to accommodate the increased demand. Additionally, the physical size of the water heater should be taken into consideration when selecting a location for installation.

Overall, installing a 100-gallon electric water heater in a residential home is possible, but it should be carefully evaluated to ensure it meets the needs of the household and can be safely and properly installed.

How do I properly maintain and care for a 100-gallon electric water heater?

Proper maintenance and care of a 100-gallon electric water heater can ensure its longevity and efficiency. Here are a few tips for maintaining and caring for your water heater:

1. Regularly inspect the water heater for leaks, corrosion, or any other damage. If you notice any issues, it's important to address them promptly.

2. Flush the water heater once a year to remove sediment buildup that can affect its efficiency. Turn off the power supply and water source, attach a garden hose to the drain valve, and drain the tank until the water runs clear.

3. Check the temperature and pressure relief valve annually to make sure it is functioning properly. Lift and release the valve handle to allow hot water and steam to escape, then ensure that it closes tightly.

4. Insulate the hot and cold water pipes to prevent heat loss, which can reduce energy consumption and lower utility bills.

5. Schedule regular maintenance with a professional plumber to ensure that your water heater is operating at peak efficiency and to catch any potential issues before they become major problems.

By following these tips, you can help ensure the longevity and efficiency of your 100-gallon electric water heater.

How efficient are 100-gallon electric water heaters compared to gas models?

Electric water heaters and gas water heaters have their own advantages and disadvantages. When it comes to efficiency, gas water heaters are generally considered more efficient than electric water heaters. This is because natural gas has a lower cost per BTU (British Thermal Unit) compared to electricity. Therefore, gas models can heat water faster and more efficiently than electric models.

However, 100-gallon electric water heaters can still be efficient if they are properly sized and installed. They are generally more efficient for small to medium-sized households because they do not require venting, and they have a longer lifespan than gas models. Additionally, electric water heaters are easier to maintain, and they are less expensive upfront.

Overall, the efficiency of a 100-gallon electric water heater compared to a gas model will depend on several factors, including the size of the household, the energy costs in the area, and the installation and maintenance practices. It is recommended to consult with a professional plumber or HVAC technician to determine the most efficient and cost-effective option for your specific needs.

How much does a 100-gallon electric water heater cost, including installation?

The cost of a 100-gallon electric water heater, including installation, can vary depending on several factors such as the brand, model, location, and additional features. On average, a 100-gallon electric water heater can cost anywhere from $1,000 to $3,000 for both the unit and installation. However, some high-end models with advanced features can cost upwards of $5,000. It's important to note that installation costs can also vary depending on the complexity of the installation, location, and any additional upgrades needed to the electrical system. To get an accurate estimate, it's best to contact a licensed plumber or HVAC technician who can assess your specific needs and provide a quote.

What are the top-rated 100-gallon electric water heaters on the market?

When it comes to choosing a 100-gallon electric water heater, there are several top-rated options available on the market. One of the most popular brands is Rheem, which offers a variety of models to suit different needs and budgets. The Rheem Gladiator is a high-performance water heater with a 12-year warranty and a digital display for easy temperature control. Another top-rated option is the Westinghouse Electric Water Heater, which features a stainless steel tank and a high-efficiency heating element for faster heating times. The A.O. Smith Signature Premier is another reliable choice, with a 10-year warranty and a self-cleaning feature to help prolong the life of the tank. Other notable brands include Bradford White, American Standard, and Giant. When choosing a 100-gallon electric water heater, it’s important to consider factors such as energy efficiency, durability, and warranty coverage to ensure you get the best value for your investment.

What features should I look for in a 100-gallon electric water heater?

When looking for a 100-gallon electric water heater, there are several important features that you should consider.

Firstly, you should consider the type of electric water heater you want. There are two common types: tankless and tank-style water heaters. Tank-style heaters are the most popular and store heated water in a large tank, while tankless heaters heat water on demand.

Secondly, you should consider the energy efficiency of the water heater. Look for models that have a high Energy Factor (EF), as these will be more efficient and save you money on your energy bills in the long run.

Thirdly, consider the recovery rate of the water heater. This is the amount of time it takes for the water heater to heat a new tank of water. A higher recovery rate means that the water heater will be able to provide hot water more quickly.

Fourthly, consider the warranty that comes with the water heater. A longer warranty period will provide you with more protection and peace of mind.

Lastly, consider the size and dimensions of the water heater to ensure that it will fit in your home and meet your hot water needs.

Overall, it's important to consider all of these factors when choosing a 100-gallon electric water heater, to ensure that you get the right one for your needs and budget.

What is the average lifespan of a 100-gallon electric water heater?

The average lifespan of a 100-gallon electric water heater is typically around 10-15 years, although this can vary depending on factors such as usage, maintenance, and water quality. Regular maintenance, such as flushing the tank and checking the heating elements, can help extend the lifespan of the water heater. It's important to keep an eye out for any signs of wear or damage, such as leaks or corrosion, and to address these issues promptly to prevent further damage to the unit. Additionally, using a water softener or other water treatment system can help reduce mineral buildup in the tank, which can also prolong the lifespan of the water heater. If you're unsure about the lifespan of your specific water heater, it's always a good idea to consult with a professional plumber or HVAC technician.

What size breaker is required for a 100-gallon electric water heater?

The size of the breaker required for a 100-gallon electric water heater depends on the wattage and amperage of the heater. Typically, a 100-gallon electric water heater requires a 30-amp double-pole circuit breaker and 10-gauge wire. However, it is always recommended to check the manufacturer's instructions and specifications for the exact size of the breaker required for the specific model of the water heater. It is important to ensure that the breaker and wiring are properly sized to avoid overheating and potential fire hazards. It is also recommended to have a licensed electrician install the breaker and wiring to ensure safety and compliance with local electrical codes.

What type of warranty is typically offered on a 100-gallon electric water heater?

The type of warranty offered on a 100-gallon electric water heater can vary depending on the manufacturer and the specific model. However, most electric water heaters typically come with a warranty that covers the tank and parts for a certain period of time. This warranty can range from 3 to 12 years, with some manufacturers offering even longer warranties.

It is important to review the warranty information before purchasing a 100-gallon electric water heater to ensure that it meets your needs and expectations. Be sure to check what is covered under the warranty, such as the tank, heating elements, and thermostat, as well as any exclusions or limitations that may apply. It is also recommended to purchase from a reputable manufacturer with a track record of providing quality products and reliable customer service.