Best Tankless Water Heater For Large Family in 2022 – Reviews & Buyer Guide

Do you own 5 or more members in your house and need the best tankless water heater for a large family? A tankless water heater is an advanced type of electrical appliance that provides on-demand hot water. When it comes to a larger family, an equally large water heater with good capacity and a flow rate is needed. Though the price may enhance according to size, it may affect by the features as well. 

According to our study, almost all the tankless water heaters that can manage a large family demand higher prices. They are worth the money at the same time. So, we have researched to highlight the best tankless water heater for a large family in the market. Let us check what we have extracted for you. 

At a Glance:

Our Recomendation for Best Tankless Water Heaters For Large Family 

This is the list of the best tankless water heater for a large family that is easy to use and provides on-demand warm water. 

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Best natural gas tankless water heater for large family
Staff Pick1. Rinnai RUC98iN Ultra Series Tankless Water Heater 
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Best indoor tankless water heater for large family
2. Rinnai RL75iN Indoor Tankless Hot Water Heater 
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Best condensing tankless water heater for large family
3. Takagi T-H3-DV-N Condensing Tankless Water Heater 
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Best hot water tankless water heater for large family
4. Rinnai RL94IN Tankless Hot Water Heater
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Best outdoor tankless water heater for large family
Budget Pick5. Rinnai RL94eN Tankless Hot Water Heater
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Best whole house tankless water heater for large family
6. Camplux Pro Natural Gas Tankless Water heater 
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Best Propane tankless water heater for large family
7. Rheem RTG-84DVP Tankless Water Heater 
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Best Gas tankless water heater for large family
8. Rheem RTGH-95DVLN Tankless Water Heater 
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Best 120V tankless water heater for large family
Best Pick9. Rinnai RUR199iP Propane Tankless water heater 
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Best rated tankless water heater for large family
10. Rinnai RL Series RRL94iP Propane tankless water heater 
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1. Rinnai RUC98iN Ultra Series Tankless Water Heater 

Staff Pick

Best natural gas tankless water heater for large family

Rinnai RUC98iN Ultra Series Tankless Water Heater
Rinnai RUC98iN Ultra Series Tankless Water Heater
Item Weight :‎82 pounds
Product Dimensions :‎10 x 18.5 x 26 inches
Power Source :‎Gas Powered
Voltage :‎120 Volts
Flow Rate :‎9.8 Gallons Per Minute
Water Consumption :‎9.8 Gallons
Certification :‎Energy Star

Rinnai is introducing you to a unique model that belongs to its ultra-series. It is not too difficult to use; this best tankless water heater for a large family comes with a flow rate of 9.8 gallons per minute. Additionally, energy star certification ensures its safety. 

Installation 

This model has been designed especially for indoor installation. It is good to hire an expert for a successful installation. Plus, the power source for this unit is natural gas. 

Design 

Rinnai RUC98iN has been designed with a simple interface while ensuring saving space. The front panel is very simple, with a digital screen and buttons on the lower side. Below, there is the white logo of Rinnai that looks attractive against the gray background. 

Safe to use 

While using this upgraded model of Rinnai, you do not need to worry about environmental pollution. It is especially active to produce a very less quantity of nitrogen oxide while ensuring safety every time. 

Display 

The display is a digital type to support you more. Additionally, the number that appears on the screen is large and red to enhance readability. The temperature can be managed with the buttons on the lower side. You can see the temperature at a dual scale to enhance convenience. 

Pros

  • Produces very low nitrogen oxide 
  • Enhanced energy efficiency 
  • It comes with a digital controller 
  • Very powerful unit 
  • Installation is easy 

Cons

  • Not for outdoor installation 
  • Weight is high 

2. Rinnai RL75iN Indoor Tankless Hot Water Heater 

Best indoor tankless water heater for large family

Rinnai RL75iN Tankless Water Heater
Rinnai RL75iN Tankless Water Heater
Item Weight :‎50 pounds
Product Dimensions :‎14 x 9.3 x 23 inches
Size :‎7.5 GPM
Water Consumption :‎9.4 Gallons
Voltage :‎120 Volts
Certification :‎Energy Star

Meet Rinnai RL75iN that has been specifically for indoor installation. With the silver appearance and simple interface, it looks too attractive. It enjoys the status of energy star certification that allows you to use it while ensuring safety. 

Temperature 

The temperature can be managed according to your demand. Both residential and commercial usage demands different temperature ranges, and Rinnai RL75iN fulfills the demand for both. The temperature range for residential needs is 98 Fahrenheit to 140 Fahrenheit. While for commercial purposes, it provides a temperature range from 98 Fahrenheit to 160 Fahrenheit. 

Design 

This unit comes in a rectangle shape and gray outer appearance. The front face just houses a digital screen and control buttons. The logo is present at the lowest middle. The venting option is present at the top that allows its wall mounting. 

Flow rate 

The maximum flow rate offered by this unit is 7.5 gallons per minute. According to manufacturers, this capacity is sufficient to supply water up to 5 connections at a time. 

Screen 

The screen is the digital type that makes the update of temperature super easy. The temperature can be seen in dual scales. Plus, digital controllers are integrated with color code indicators. 

Pros

  • Both for residential and commercial purpose 
  • Safe for environment 
  • Capable for Wi-Fi 
  • Easy venting 
  • Advanced technology 

Cons

  • Makes noise during working 
  • Need maintenance 

3. Takagi T-H3-DV-N Condensing Tankless Water Heater 

Best condensing tankless water heater for large family

Takagi T-H3-DV-N Condensing Tankless Water Heater
Takagi T-H3-DV-N Condensing Tankless Water Heater
Item Weight :‎59 pounds
Product Dimensions :‎11.25 x 17.75 x 24.88 inches
Flow Rate :‎10 Gallons Per Minute
Power Source :‎Gas-Powered
Voltage :‎120 Volts
Certification :‎Energy Star

As an emerging name, this unit is adorned with condensing technology. Its flow rate is too good to meet the need for a large home. The output power is excellent to necessary power. This unit has equipped with all those features that can be present in a good unit. 

Flow rate 

This is a strong version of Takagi that comes with an advanced flow rate. The maximum flow rate provided by this unit is 10 gallons per minute. This higher capacity meets the need for a large home. Not every type of water heater in the market offer this level of flow rate. 

Design 

This unit of Takagi is efficient in saving space and energy. It is too compact to fit in at a narrow place. The Takagi logo houses the top middle. On the other hand, the lowest zone is located by a digital screen and buttons to manage it. 

Safe to use 

This unit comes with multiple computerized safety functions. Amazingly, it does not need a pilot light, so don’t worry about it. Additionally, overheat protection, surge protection, and freeze protection make this unit very safe to use. 

Pros

  • Fast heat transfer 
  • Safe for environment 
  • Low sound production 
  • Compact and space-saving 
  • It comes with safety features 
  • Need no pilot light 

Cons

  • Not for outdoor usage 
  • Warm water after a wait of 3 minutes 

4. Rinnai RL94IN Tankless Hot Water Heater

Best hot water tankless water heater for large family

Rinnai RL94eN Tankless Hot Water Heater
Rinnai RL94eN Tankless Hot Water Heater
Item Weight :‎44.2 pounds
Product Dimensions :‎9.27 x 14.04 x 26.9 inches
Voltage :‎120 Volts
Water Consumption :‎9.4 Gallons
Certification :‎Energy Star
Usage :‎Indoor use only

Rinnai RL94IN has come up with a good energy factor. Natural gas works as the main power fuel to provide sufficient energy. It can supply water to up to 6 fixtures at the same time. In short, this unit is an ideal choice for a large home. 

Flow rate 

With a flow rate of 9.4 gallons per minute, this unit fulfills the demand for a large home. You can enjoy the warm water at 6 fixtures at a time. This capacity provides on-demand water all the time. 

Technology 

You are provided with comfort and efficiency with the help of Circ-logicTM recirculation technology. This system is provided with an external pump to supply warm water all the time. 

Installation 

This unit has been designed especially for indoor usage. You can call for a professional to enjoy the flawless installation. 

Warranty 

The warranty time is extended to serve you well. For heat exchangers, it provides a warranty time of 10 years. While parts and labor get 5 years and 1 year as warranty time, respectively. 

Design 

Like other models of Rinnai, this unit also has a simple interface. The lower part houses a digital screen and buttons for successful management. 

Pros

  • It comes with recirculation technology 
  • Efficient and comfortable to use 
  • Efficient and great working 
  • The interface is very simple 

Cons

  • Not offers DIY installation 
  • Tag price is high 

5. Rinnai RL94eN Tankless Hot Water Heater

Budget Pick

Best outdoor tankless water heater for large family

Rinnai RL94eN Tankless Hot Water Heater
Rinnai RL94eN Tankless Hot Water Heater
Item Weight :‎44.2 pounds
Product Dimensions :‎9.6 x 14 x 24.3 inches
Voltage :‎120 Volts
Water Consumption :‎9.4 Gallons
Certification :‎Energy_star
Usage :‎Outdoor use only

With a maximum flow rate of 9.4 gallons per minute, this model of Rinnai fulfills the demand for a large house. This model is safe to use and approved by SCAQMD. With a weight of 44.2 pounds, this model is very safe to use.:

Flow rate 

Meet this model of Rinnai that comes with an extended flow rate. With a maximum flow rate of 9.4 gallons per minute, this unit is worth using for a large home. It can happily entertain up to six fixtures at a time to your home. 

Installation 

This model of Rinnai has been designed for outdoor installation so, don’t try to fix it indoors. You can hire an expert to ensure correct installation. 

Design 

The mentioned unit is a rectangle and has a gray appearance. The profile is too simple. The lowest side of the front face houses a digital screen while venting options and connections are present at the bottom side. 

Warranty 

This tankless water heater comes with a warranty time of 10 years for heat exchangers that are stronger. The parts belong to the warranty time of 5 years, while labor comes with 1 year of warranty time. 

 

Pros

  • Installation is too simple 
  • Quality is very amazing 
  • Temperature control is good 
  • It comes with recirculation technology 
  • The flow rate is good 

Cons

  • Less efficiency in extreme cold 
  • Not for indoor installation 

6. Camplux Pro Natural Gas Tankless Water heater 

Best whole house tankless water heater for large family

Item Weight :‎49.7 pounds
Product Dimensions :‎22.24 x 15.55 x 6.5 inches
Power Source :‎AC
Voltage :‎120 Volts
Wattage :‎52 KW

Camplux Pro is an advanced model of tankless water heater that has been designed especially for outdoor installation. It comes with high flow control to check and balance the water. Additionally, you can use it from medium to large size home. 

Flow rate 

Meet an advanced model of Camplux that comes with a flow rate of 6.86 gallons per minute. This capacity is enough to supply warm medium to large-sized homes. The flow has been checked constantly to ensure the required amount. 

Protection 

CSA has verified this model of Camplux. It comes with multiple safety features that include overheating protection, freezing protection, and a flame failure device. All these factors make it safe to use every time. 

Power 

The necessary power of this model is supplied by natural gas. The output power for this unit is 180,000 BTUs to ensure maximum power. The energy factor of this gas heater is 0.82. 

Environment friendly 

The mentioned unit is safe for the environment as it produces a very little amount of nitrogen oxide in the surrounding. 

Design 

The appearance is rectangle and white. This makes the outer look very attractive. The front profile is simple, and connections are present at the bottom of this unit. 

Pros

  • Advanced flow control 
  • Safe for environment 
  • Installation is easy 
  • It comes with digital remote control 
  • Safe to use 

Cons

  • The price is high 
  • Not Wi-Fi compatible 

7. Rheem RTG-84DVP Tankless Water Heater 

Best Propane tankless water heater for large family

Rheem RTG-84DVP Tankless Water Heater
Rheem RTG-84DVP Tankless Water Heater

Flow rate  :

Item Weight :‎61.8 pounds
Product Dimensions :‎9.87 x 13.87 x 23.62 inches
Size :‎8.4 GPM
Power Source :‎Gas Powered
Certification :‎Energy Star

Rheem is a famous name that has come up in the market with RTG-84DVP. The flow rate is enough to meet a medium to a large home. The gray appearance against the red logo looks attractive. If you are searching for a propane-powered heater, then Rheem RTG-84DV 😛 is a great choice for you. 

The maximum flow rate offered by this unit is 8.4 gallons per minute. This capacity is sufficient to fulfill the need for a large home. It can entertain up to 5 or 6 fixtures at a time. 

Safety 

This unit is safe for the environment as it produces a very low amount of nitrogen oxide. This feature has made it an environmentally safe product. 

Fuel 

The basic fuel that provides the necessary energy is liquid propane. So, if you lack natural gas in your area, Rheem RTG-84DVP can be the best alternative for it. 

Installation 

This unit has been designed for indoor installation. The vent termination kit is needed for this purpose. Though the installation is not difficult, yet it’s worthy of hiring an expert to enjoy the flawless installation. 

Pros

  • Low nitrogen oxide emission 
  • Efficient to use 
  • The warranty time is good 
  • Working is great 
  • On-demand warm water 

Cons

  • The price tag is high 
  • Heavyweight  

8. Rheem RTGH-95DVLN Tankless Water Heater 

Best Gas tankless water heater for large family

Rheem RTGH-95DVLN Tankless Natural Gas Water Heater
Rheem RTGH-95DVLN Tankless Natural Gas Water Heater
Item Weight :‎79 pounds
Product Dimensions :‎18.5 x 9.75 x 27.5 inches
Power Source :‎Gas Powered
Batteries Required? :‎No

Meet another model of Rheem that comes with a flow rate of 9. Gallons per minute. The energy efficiency offered by this unit is 94 percent. You can use it without being worried about the environment as it produces very low nitrogen oxide. 

Flow rate 

This unit comes with a flow rate of 9.5 gallons per minute. This capacity happily fulfills the need for a large home. Put this unit into your home, and up to 5 fixtures would be entertained. 

Installation 

This unit has been installed for indoor installation. You should hire an expert for a successful installation. It comes with a direct vent option for further support. 

Environment safe 

This unit is declared as the safer unit for the environment. This feature is due to the low nitrogen oxide production in the environment. 

Construction 

The heat exchangers are composed of stainless steel that is condensing type. This unit has come with 94 percent energy efficiency to support you more. 

Design 

This Rheem unit is rectangular in style. The outer appearance is gray and simple. It has two darker belts with the Rheem logo at the right that adds further attraction. 

Pros

  • Strong heat exchanger 
  • Efficient to use 
  • Appearance is good 
  • Safe to use 
  • Not dangerous for the environment 

Cons

  • Not for DIY installation 
  • Pricey for some people  

9. Rinnai RUR199iP Propane Tankless water heater 

Best Pick

Best 120V tankless water heater for large family

Rinnai RU199iN RRU199iN, RU199in-Natural Gas/11 GPM
Rinnai RU199iN RRU199iN, RU199in-Natural Gas/11 GPM
Item Weight :‎84 pounds
Product Dimensions :‎18.5 x 11.45 x 31.3 inches
Size :‎11 GPM
Voltage :‎120 Volts
Color :Gray

Meet this strongest model of Rheem that comes with propane as the fuel. This unit has been designed for indoor installation and is adorned with recirculation technology to ensure warm water all the time. 

Flow rate 

It comes with a flow rate of 11 GPM that is the highest among all its breed. This capacity not only makes it a good option for a large home but also satisfied commercial need. More than 7 fixtures can be entertained at a time. 

Fuel 

This unit uses the power of propane as fuel to meet the demand of daily needs. It can be the best alternative for natural gas heaters. 

Technology 

This unit has been adorned with ThermaCirc360 technology to supply warm water every time you need it. The integrated recirculation pump rotates the water integrated, returning it to the dedicated line. 

Energy efficiency 

This unit is very smart to cut down utility costs while saving energy at the same time. This feature has made this product announce as energy efficient. 

Design  

The shape is a rectangle and large. The external look is simple and silver. The front face is housed by a digital screen with buttons on the lower side to manage the temperature. Connections are present at the bottom of the unit for convenient use. 

Pros

  • Multiple fixtures supply 
  • Cut down utility bills 
  • Comes with timer 
  • Reliable to use 
  • Quick supply of warm water 
  • Warranty is amazing

Cons

  • Need professional installation 
  • Not for outdoor installation 

10. Rinnai RL Series RRL94iP Propane tankless water heater 

Best rated tankless water heater for large family

Rinnai RL Series RRL94iP Tankless Water heater
Rinnai RL Series RRL94iP Tankless Water heater
Item Weight :‎44.2 pounds
Product Dimensions :‎14.02 x 10 x 22.99 inches
Size :‎9.8 GPM
Voltage :‎115 Volts
Water Consumption :‎9.4 Gallons
Certification :‎Energy Star

With a flow rate of 9.4 gallons per minute, this unit has been bundled with Circ-logic technology to enjoy warm water without wait. It is large and silver that does not look odd at your place. 

Flow rate 

This is another model of Rinnai that belongs to different series of tankless water heaters. It offers a maximum flow rate of 9.4 gallons per minute. This capacity fulfills the need for a large home. 

Design 

It is a rectangle, large and silver. The front face is simple with a digital screen and buttons in a smaller space. The venting options and connections house the bottom portion of this water heater. 

Installation 

This model of Rinnai has been designed for indoor installation to ensure its protection. Though the installation is not difficult, yet company advises users to hire a professional for a persistent warranty. 

Technology 

Like other models of Rinnai, the discussed unit is also adorned with Circ-logic technology. You can now set the recirculation pattern parallel to your routine. In his way, you have no need to wait for warm water. The water would be started heating at the specified time according to your routine. 

Pros

  • Wi-Fi monitoring system 
  • Recirculation technology 
  • 40 percent energy saving 
  • Concentric venting system 
  • Fast delivery of warm water 

Cons

  • The tag price is too high 
  • Size is large 

Buying guide 

You will get enough insight to get the best tankless water heater for a large family in this part. In addition to basic features, the heater in question should have enough capacity to entertain your full home happily. 

Additionally, the flow rate should be too strong to tolerate extreme cold while providing endless warm water. Generally, the models with higher flow rates come at inexpensive rates. So, try to keep your budget fairly high while going for its purchase. 

Flow rate 

While looking for a tankless water heater for a large family, you need to have a unit with a maximum flow rate. The higher flow rate provides water supply up to multiple fixtures and ensures warm water if your surrounding temperature is extremely cold. 

For a large family, the flow rate between 9 to 11 gallons per minute would be enough. Moreover, the same capacity works as well to meet the commercial need. 

Power source 

Before finalizing your purchase, make sure what the power source is. Generally, three types of fuels are used to provide the necessary power to the tankless water heater. It may be electricity, propane, or natural gas. 

For whatever source of fuel, you are going for should be easily available in your surroundings. Never look for a unit that uses fuel type, which is not easy to find. 

Brand 

A large number of brands are stepping into the market introduce you to the tankless water heater. You know, this is the kind of product that cannot be purchased again and again. So, never give yourself a trial. Catch the unit that belongs to the famous family of brands. 

These well-known names never compromise over quality and come with improved versions in the market. You can trust these names for reliable results. 

Warranty 

A tankless water heater for a large home comes at a higher price. So, it’s your right to enjoy an extended warranty time. From 12 years to 15 years and lifetime, the companies offer different warrant times. 

Try to pick the unit that offers the largest service time as a warranty. It would save you from spending again and again at the same unit. 

Frequently Asked Questions

What brands are producing the best tankless water heater for large homes? 

To entertain a large home, very famous names are present in the market that are producing tankless water heaters. The most famous names are Rheem, Rinnai, EcoSmart, Camplux, Takagi, and more. 

Is using a tankless water heater worth it? 

Yes. The tankless water heaters are worth using as they provide on-demand warm water. Additionally, they are energy efficient too to cut down electricity costs. 

Conclusion

After reviewing this article, we have concluded that the market is full of multiple types of tankless water heaters, but all are not strong enough to entertain large homes. We have extracted top tankless water heaters for large homes after deep research.  

At this point, we hope that you would not fail to find the best tankless water heater for a large family after consulting this article.

Our recommendation 

If your pocket is strong enough to bear a pricey unit, we recommend you get a Rinnai RUR199iP Propane Tankless water heater. It comes with a strong flow rate and is adorned with recirculation technology. Additionally, it is safe and easy to use, also. 

You can purchase Rinnai RL94eN Tankless Hot Water Heater with a bit limited budget on the opposite face. The mentioned water heater is capable of entertaining Wi-Fi and comes with nicer flow control. Moreover, the temperature control system makes it a good choice to go with.  


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