Best10 Best Tankless Electric Water Heater for Large Family

10 Best Tankless Electric Water Heater for Large Family

During Winter Session, most of our water is freezing due to cold weather and snow. So at that time to save our family member and loving one from different kinds of cold allergy like Favor, Cough, Covid ETC.

We have to use a water heating element or a best whole house water heater for family savings.

But there are different kinds of water heating elements. I know you already think about tankless waters. But there are two types of tankless water heaters that I described.

One is an electric tankless water heater, and another is Gas tankless water heater. Both of them are really good at this moment. You may be worried about which water heater is perfect for you?

Before deciding, you have to know about the product details and the amount of money you want to spend to purchase the best affordable family-size tankless water heater. And the amount of money you have to spend to purchase an energy-efficient tankless water heater. For Electric water heaters also have some variation in the market all of them are not suitable for you.

Here I Describe some Best Tankless Electric Water heater for Large Family and some best natural gas tankless water heaters for joint families.

If you are a joint family member or living in a large house with your other neighbors, you can decide from here to consider buying.

These Tankless heaters give you a Chilling feeling to drinking and using water during the cold winter sessions.

So Let’s get started. Here are My Best 10 tankless water heaters for a large family.;

Stiebel Eltron Tankless Heater

It’s Stiebel Eltron Brand Tankless Water heater That’s Manufactured by Holzminden, Germany. As we know, Germany always produces the best quality electronics product.

As a result, This Tankless Heater uses advanced technology to maintain water temperature automatically for making sure users are comfortable.

It has the ability to reduce the water flow rate automatically when someone uses an excessive amount of water during the shower. It’s able to ensure your hot water showers will never be interrupted. So you don’t need to worry about hot water.

That’s why anyone can use Stiebel Eltron Brand Tankless hot water heater without any hesitation.

It’s also Saves your electric energy up to 15% to 20% than any other gas tankless heater. To use this, you will need a 208 Volt Battery-powered and 27000 Watts Power Source.

It has a Mounting installation method and has one Handle. This Tankless unit’s maximum water flow rate is 150 Pound Per Square Inch. The heater is size 4.63 x 16.63 x 14.5 inches, and it can continuously provide a water supply.

It has a Sleek Design that saves your space, and Venting is not required for this one. It has 100% copper Cylinder covered by a copper sheet to heat water faster. Eco Stiebel Eltron Tankless Water Heater provides you 7 Years of Leakage Warranty and three years Parts complete warranty. That’s pretty good. So You don’t need to worry about the leakage, that’s the company’s responsibility.


  • Weight 1 pounds
  • Materials Copper
  • Power Source Battery
  • voltage 208 and 2700 Watts
  • Maximum Pressure 150 pounds per Square Inch
Pros Cons
Save your electric energy up to 15% to 20% There is no specific installation kit.
Automatic Water Temperature control
Auto water flow controlling
On-demand hot water supply


Is there an Installation kit available for the Eco Tankless Water Heater?

Sorry, there is not any specific Kit to install your Eco Stiebel Eltron Tankless Water Heater. But Our suggestion is for you to try to use a braided hose connection with the screw. That will be easy to connect and remove to check your filter. But you can try to buy installation fittings to install your tankless heaters.

What’s the Difference between Tempra 36 Plus and Tempra 36 Trend?

The Difference between Tempra 36 Plus and Tempra 36 Trend is that Plus Version has a flow controller for controlling heater temperature.

So you are not able to get too much water from this plus unit. Moreover, if you try to use it repeatedly, it will slow down water flow on its own. On the other hand, the Trend version doesn’t try to maintain water temperature, allowing you to get too much water whatever you need.

So If someone lives in a cold area, then the Plus Version is a perfect option. Otherwise, you can try the trend version when you live in a hot climate area.

Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater

EcoSmart 36 Kilowatt Electric Tankless Water heaters are supplying warm water for your family apartment, Townhomes also for your whole house. They develop some innovative best Tankless Water heaters for enjoying your every day by Sharing hot water with your family and your employees. 

It will give you endless hot water without any tank and at the same time that will save you money. It will help you to reduce west water and energy-efficient at the same time. EcoSmart 36 is a part of the Rhem family.

It maintains North American safety standards and Provides you surety of your family water Safety with a Safe water heating system.

They use advanced technology to produce the best quality tankless water heaters. That’s why it is used by a variety of people and businesses from all over the globe. You can use it in your office, restaurant, or any other place. Most traditional Water heaters take lots of space, and that’s hard to install. But EcoSmart Tankless Water heaters are easy to install and don’t need Extra Space for the tank. That’s Real good.

 Product Features:

  • It’s Consume 36 KiloWatts Electricity
  • It’s Weight 18.35 Pounds
  • Product size 3.6 x 21 x 17 inches
  • Produce by the USA
  • Battery Source available
  • 240 Volts and 36000 Watts
  • 150 AMPS
  • Life Time Warranty.

Its capacity per minute 3.6 and 8.7 gallons of hot water depend on the temperature of inlet water.  

Pros Cons
Endless Hot Water There is no specific installation kit.
Up to 50% energy efficient
Life Time Warranty
Digital Temperature control

Ecosmart ECO 18 Electric Tankless Water Heater

Suppose you are finding the best tankless heaters for a large family. Then Eco-Smart 18- Kilowatt tankless water heater can be suitable for you. It’s able to give you up to 1.8 and 4.3 gallons of hot water per minute. But, of course, it depends on the temperature.

I have already told you every Eco tankless Water heater provides unlimited hot water. EcoSmart 18 Electric tankless water heater.

The tankless Water heater is another Family Size Water heater whose price is less than 500 USD. It’s a highly durable product that is easy to set up and use. You can use it for your Business Place like a Coffee shop, a restaurant or any other place to get more and more warm water. That saves your time and energy. This item is manufactured in china.

It’s such an affordable price with all of the facilities. That’s why people really love to purchase this tankless unit exchanger. It has nearly four thousand positive reviews with 4.5 Star Ratings.

So If you are thinking about saving your family and sharing warm water with all of your loving ones with energy efficiency. Then I highly recommend you to get Ecosmart ECO 18 electric tankless Water Heater.

Product feature:

  • This Eco 18 Manufactured by Ecosmart
  • It’s Weight 14 Pounds
  • Size of this product 17 x 14 x 3.5
  • Manufactured country china
  • 240 Volts and 18000 Watts
  • It also provides a Lifetime warranty on electronics exchangers and elements.
Pros Cons
It’s Certified by CSA/UL No external Power Source is available
Lifetime warranty

Rinnai RL94iN Natural Gas Tankless Hot Water Heater

Some of you may know about the Gas water heater. If you are thinking about purchasing Natural Gas tankless water heater, then Rinnai RL94iN is one of the best gas heaters for a large home. All of Rinnai’s high-quality models use more advanced technology than any other Tank heaters.

This gas tankless heater is Rusty protected, which ensures your water safety. Also, You can use it for a long time because the water circulation is always activated. Moreover, to get more and more hot water, it has a warless monitoring system. So you can enjoy warm water with your family member easily.

These Rinnai Gas Water Heaters also provide you with Five Warm water outlets at the same time. And You will enjoy the Same heating water from each and every outlet whatever you set before.

It has up to 9.4 Gallons of constant hot water supply capacity with saving 40% of energy. It’s the perfect tankless gas water heater for anyone who loves to use a gas water heater. So you can set up it anywhere doesn’t need to worry about the Space-saving of your house because it’s So small with a high water flow rate. 

Product Features :

  • Indoor Installation Color
  • Style Natural Gas
  • It’s a Gas Powered tankless heater
  • Item Size 9.27 x 14.04 x 26.9 inches
  • 120 Voltage
  • Made in China
  • It has 44.2 Pounds weight
  • High Optimal water pressure that is 9.8 GPM Warm Water flow
  • It has up to 12 years Warranty
  • Indoor use only
Pros Cons
12 years Warranty Expensive
Indoor Installation Color Indoor use only
9.8 GPM Warm Water flow
Rated by a Uniform Energy Factor (UEF)
Use ThermaCirc360 technology
Energy efficiency

Rheem 240V 4 Heating Chambers RTEX-36 Residential Tankless Water Heater

If you are thinking about the best tankless water heater for a large family, you can think about Rheem Electric Tankless Water heaters.

It has an External Digital temperature LED Display. That makes It easy to use and very user-friendly. It uses self-module water temperature adjustment so if you need hot water. Its temperature rises automatically, so you don’t need to control it.

It offers up to four heating elements with durable copper immersion. It’s Heave simple installation system with a manual guide. This Rheem Tankless Water Heater, Sell there product with 4.5 Star Reviews.

So to reduce Power consumption and save money, you can try one of these Tankless heater for Large families.

Product Features:

  • It’s come from Rheem Brand
  • It’s Have Gray color
  • This tankless water heater size is 4 x 22 x 19 Inches
  • 22.7 Pounds Weight
  • Color is Gray
  • Corded Electric Power Source
  • 240 Volts
  • It has a digital LED display
  • Self Modulation System
  • 4 Heating Chambers RTEX-36
Pros Cons
Digital temperature display No Long life warranty
Self Modulation System

Rinnai RL75iN Natural Gas Tankless Hot Water Heater, 7.5 GPM

Another Rinnai Brand best tankless gas water heater for large homes is that most of the features are the same as Rinnai RL94iN. Still, it is slightly different from the previous one: Item Weight, Size, Manufacturer, price, Water flow rate & capacity.

This Rinnai can help you by providing water in your house’s critical areas and giving your family a suitable life with water. So You can use its Warm Water for Bathing, Showering, Dishwashing, ETC. It will Ensure you Unlimited amount of hot water.

No matter how much you need. The best thing for Rinnai RL94 is They Individually recheck their product quality before shipping. Because they always try to make sure customer satisfaction.

So you don’t need to think about the product issue. Rinnai make sure your power and water cost savings that are rated by (UEF)


  • Rinnai Brand
  • Indoor custom color
  • Gas Powered system
  • Size 14 x 9.3 x 23 inches
  • Made in Japan
  • Item Weight 50 Pounds 7.5 GPM
  • Metal Material used
  • 9.4 Gallons Water Consumption
  • Have Energy Star Certification
  • Including Valve Kit
Pros Cons
Powerful warm water flow with 7.5 GPM Indoor use only
Made in Japan
Have Energy Star Certification
Save your Electric units

Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray

Suppose you want to purchase the cheapest hot water heater for a large house. Then Raheem RTEX-24 is Another Cheapest hot water heater for a large family.

Its price is lower than any other tankless water heaters that I reviewed with the most expensive features. So you can be thinking about purchasing a hot tankless water heater for your family. But don’t love to spend a massive amount of money, then Rheem RTEX-24. That’s a simple and attractive solution for you.

So late, I will tell you details about this Rheem RTEX-24. As I see It’s most of the features are so similar to RTEX-36. But here have a slightly deferent between both of them. That’s are Manufacturer, Size, Country of origin, Size, Product Materials.

Product Features:

  • 18.25 x 3.5 x 17.63 inches
  • Have an ON/OFF Dial Control
  • You also get an adjustable digital temperature display
  • ¾ NPT water connections
  • Weight 17.8 Pounds
  • Made in China
  • Alloy Steel Material
  • Wall-mount installation method
  • Maximum Pressure 150 pound
  • Included Fittings, Aerators
Pros Cons
digital temperature display Alloy Steel Material
Included Fittings, Aerators

Bosch Electric Mini-Tank Water Heater Tronic 3000 T 7-Gallon (ES8) – Eliminate Time for Hot Water – Shelf, Wall, or Floor Mounted

If you think to purchase the best tankless water heater for a large family but have a Small place to install a water heater, you can use a Bosch Electric Mini-Tank water heater. It’s one of the total quality products at an affordable price.

It will be able to give you 2.5 and 4-gallon tanks, and That’s really a great solution for Small Spaces. It’s so lightweight that you can install it anywhere. Its design is really fantastic that will increase your house’s beauty.

It will reduce your waiting time for a glass of water because it will be able to supply water instantly.

Nowadays, people are so busy with their daily stuff that’s why people feel frustrated waiting for Warm water to shower because old tank water needs some time to heat water.

On the other hand, some of the house water lines are not organized. They were there having one type of water line access. That is not used nowadays.

So what are you thinking about? Do you believe plumbing the whole water line for getting hot water? That’s a good idea, but it’s time-consuming and west of money.

So If you don’t love to waste time and money, you can use the Bosch Electric Mini-Tank water heater as a solution to get warm water. You can use it as a Sole Water heating source for a single sink and a supplement to an existing heater located far from the main sink, and you also use it in line as a tankless water heater buffer installed inline.  

Product Features:

  • Manufactured by Standard Plumbing Supply
  • Weight of this item 29.5 pounds
  • It’s Brand Bosch Thermotechnology
  • Used Battery power source
  • 10 x 10 x 16 inches
  • 120V- Required
  • 1440 Watts
  • Up to 6 Years of warranty
  • Made in china
  • Size 7 Gallon
Pros Cons
Up to 6 Years of warranty It’s a Small Size capacity
Maximum pressure is 150 Pound per square inch

Eemax EEM24018 Electric Tankless Water Heater, Blue

Hey, do you want to get an endless water heating system for your family?

If yes, then the Eemax EEM24018 Electric Tankless heater is one of the effective water that you can buy. to get unlimited hot water. It’s not a big one, but it’s perfect for a small size family-like a 3 to 4 member family.

Let me tell you the details about this heating machine. This Electric energy-efficient water heater is able to provide you instant and endless hot water supply. It’s a Compact-sized water heater with all modern technology that will save your valuable space.

Product Features:

  • Manufactured by Eemax Brand
  • Item weight 14.27 pounds
  • Product dimensions 17 x 14 x 3.75 inches
  • Made in China
  • Stainless Steel makes it
  • Power source Battery
  • The capacity of water supply per minute 3.5 Gallons
  • And That water pressure is 150 Pound per square inch
  • It has 5 Year’s of leaks warranty
Pros Cons
Made by Stainless Steel Water Supply Per Minute 3.5 Gallons
5 Year’s Warranty

Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater

Do you have a large family with 6 to 10 members? so than This Ecosmart ECO36 Tankless water heater launches with one of the demandable water heating systems that’s Sleek and compact design for a large family. With this tankless heater, you are able to supply endless hot water for your whole house member as well as your neighbor.

The United States manufactures it as we know their product quality is mind-blowing. You can use it for a whole family member or a Restaurant.

Product Features:

  • It’s offer Limited Lifetime Warranty Voltages are 240 Volts and 36000 Watts
  • Manufactured by Ecosmart USA
  • Weight of this item 18.35 pounds
Pros Cons
It’s offer Limited Lifetime Warranty It’s So Expensive
Voltages are 240 Volts and 36000 Watts
Manufactured by Ecosmart USA

What is The Downside of a tankless water heater?

The downside of the tankless water heater is it’s such an expensive commercial water heaters. And its Installation is also expensive.

How much does it cost to convert to a tankless water heater?

Well, The Electric Tankless water heaters expense is the same as a gas tankless water heater. But If you want to install a gas water heater, then you

may need up to 1500 USD 

Why can you Purchase a Tankless Water heater?

Space-saving- Traditional Water heaters need lots of space to set up. But if you try to get tankless water heaters, that will save your space. It’s the most user-friendly, and you can save 80% to 90% space than condensing tankless water heaters.

Time Savings

When someone uses a gas tankless heater, they have to wait for hot water. Because the gas tankless heaters make sure the whole storage tank water is hot enough, it will supply.

But for Tankless water heaters, you don’t need lots of time to get on-demand hot water. Instead, it’s able to supply hot water instantly.  

Energy Savings

Tankless water heaters are energy efficient that save your utility bill. It supplies on-demand hot water. How much hot water makes your demand. It’s hasn’t tanked, so its advanced technology only uses the amount of energy to heat water when you need warm water. 

Money Savings 

This kind of water heater use power to fulfill your demand that’s why you can save up to 50% of the electric units.

Read More: How To Install An Electric Tankless Water Heater

How do we know which one is the best tankless water heaters for our family?

Here are some basic things that you can follow to consider the best tankless water heater.

Easy to Install

Tank water heaters installed are a bit harder than the best tankless water heater. That’s why to set up tankless water heaters. You don’t need extra money. There are different types of tankless heaters.

But most of them installing systems are the same, so you don’t need to worry about that. Suppose you have a bit of technical knowledge. Then you can easily install your tankless water heater on your won self. Otherwise, hire a plumber.


Pricing is one of the most important factors in choosing a product, so when you have enough money, you can buy any product. But you have to try to get the best return on your investment. So try to purchase a product which one price is not higher than its services. 


There are several types of tankless water heaters. Each heater has its own design quality and facility. So when you consider purchasing the best tankless water heaters, you have to make sure about your needs. And which facility do you want to get?     

Enough Water supply

When you try to purchase a tankless water heater, you have to know about that heater’s water supply capacity. Every capacity is not perfect for you. Some of the Capacity is lower than your need. Some of them are higher than your need. So you have to choose a marginal point which one is enough for your family.

Energy Cost

Tankless water heaters are energy-efficient water heaters. However, because it heats only when you need it, some of the Tankless water heaters are made with low-quality materials, that’s why their price is pretty much lower, but you have to spend lots of money for energy purposes.

User Safety

Every Tankless water heaters are unsafe for your family, so don’t consider user safety because your safety is more important than money. You have to use it at your home and have your family member and kids, so you have to take care of themself.


We already know some of the best tankless water heaters you can use for 8 to 15 years. But if you choose a tankless water heater, it can last more than twenty years. Sometimes you may see tankless water heaters also damage. But you can replace those Damage Parts. Then you can use it for a long time. That’s pretty good. 

Perfect Size

You may know every family has a different amount of members, and each member’s water using level is also different.

So I think you already know about your family water needs daily. First, you have to purchase a perfect size Water heater for your family. 

Compact Design 

Traditional heater design with 30 to 60 gallons water reserve tank is not a better solution. But Tankless water heaters come with a small, compact and decodable design. So that you don’t need to reserve water on the tank like the best tankless water heater, so that saves your precious space, now you can use that space for any other things.


Tankless water heaters are so faster than gas water heaters. Because it’s able to heat water instantly, on the other hand, a Tankless water heater has to bow a whole gallon of water, and that takes time. So for the quick response of warm water tankless water heater is the best. That will never interrupt your shower. Maximum Capacity

Bottom line:-

Here I described the 10 best tankless water heaters.

So I hope you have already got a suitable large family-size tankless water heater for your home.

But If you are confused, then I have a recommendation for you that is EcoSmart 36. We think that’s a better option to invest your money. So Now you can use endless hot water. But please don’t try to waste any single drop of water without your demand.


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