Best Tankless Water Heater For Large Home – (2024’s Top Models)

Are you looking for the best tankless water heater for your large home? Then you have come to the right place! The search can be overwhelming, as there are many different models to choose from. But fret not with our comprehensive guide on selecting the perfect tankless water heater for a large home. It needn’t be a difficult task anymore! We’ve researched and reviewed some of the top models in terms of performance and cost savings to help narrow down your choices. In this article, we’ll look at the top five tankless water heaters for large homes, discussing their features, pros and cons. By the end of this article, you’ll be well on your way to finding the ideal tankless water heater for your home! So, let’s start by looking at our top five picks for the best tankless water heater for large home.

Quick Shopping Picks For The Best Tankless Water Heater For Large Home?

The search for the best tankless water heater for large homes can be tricky. But with a few smart shopping picks, you can maximize your investment and ensure your family can access hot water without running out of storage space. Here are two great options when it comes to finding the Best Tankless Water Heater For Large Home:

Best Pick

Eemax EEM24013 Electric Tankless Water Heater

Eemax EEM24013 Electric Tankless Water Heater

  • Item Weight : 6.96 pounds
  • Power Source: AC
  • Capacity: 13 Gallons

Staff Pick

Rinnai RU180eN Condensing Tankless Hot Water Heater

Rinnai RU180eN Condensing Tankless Hot Water Heater

  • Item Weight : 71.8 Pounds
  • Power Source: Gas Powered
  • Capacity : 10 Gallons

What are our recommendations for the Best Tankless Water Heater For Large Home?

When purchasing a tankless water heater for your large home, it’s essential to consider various factors, such as the size of your home, type of fuel source, and BTU level. Our top 5 recommendations for the best tankless water heaters for large homes will help you make an informed decision.

Design

Product

Features

Price

Eemax EEM24013 Electric Tankless Water Heater
  • Power Source: AC Powered
  • Item Weight : 6.96 Pounds
  • Capacity: 13 Gallons
Rinnai RL94iP Tankless Hot Water Heater
  • Power Source: Gas Powered
  • Item Weight : 20.1 Kilograms
  • Capacity: 9.4 Gallons
Rinnai RU180eN Condensing Tankless Hot Water Heater
  • Power Source: Gas Powered
  • Item Weight : 71.8 Pounds
  • Capacity: 10 Gallons
Rinnai V94XiN Tankless Hot Water Heater
  • Power Source: Gas Powered
  • Item Weight : 46.3 Pounds
  • Capacity: 9.8 Gallons
Rheem Mid-Efficiency 8.4 GPM Outdoor Liquid Propane Tankless Water Heater
  • Power Source: ac/dc
  • Item Weight : 54 Pounds
  • Capacity: 8.4 Gallons

1: Eemax EEM24013 Electric Tankless Water Heater, Blue

Best electric tankless water heater for large home

The Eemax EEM24013 Electric Tankless Water Heater is one of the market’s most reliable and efficient water heaters. This top-of-the-line electric tankless heater uses 13 KW of power to provide an incredible 13 gallons per minute of hot water. It is perfect for various applications, from small single-family homes to larger commercial businesses. The Eemax is made of stainless steel and features a sleek blue finish that will look great in any setting. Plus, it has a worry-free 5-year warranty for leaks and one year for parts. With the Eemax electric tankless water heater, you can enjoy hot water on demand without worrying about running out or energy costs. It is the perfect way to keep your family safe and comfortable while saving money on utility bills.

Whether you need hot water for showers, dishes, or laundry, the Eemax will deliver an endless supply of hot water with every use. Experience high-quality performance from a reliable brand with the Eemax electric tankless water heater – the best choice for your home or business.‎

Key Features:

Eemax EEM24013 Electric Tankless Water Heater offers several great features, including:

  • 1: Compact Design –  With its compact size, the Eemax EEM24013 takes up minimal space and can fit easily in small spaces such as closets or under kitchen sinks.
  • 2: High Capacity –  This boiler has easy-to-use thermostat controls and can connect two-zone pumps directly to the PCB, so you can always have precise temperature control.
  • 3: Durable Construction – Constructed from stainless steel, the Eemax EEM24013 is designed to last a long time with minimal maintenance required.
  • 4: Energy-Efficient The efficient 13 KW power source keeps energy consumption low, leading to lower electricity bills.
  • 5: Easy to Install – The unit has all the necessary components for a quick and easy installation in minutes.
Pros
  • Compact and lightweight design for easy installation.
  • Uses less energy than traditional tank water heaters.
  • Continuous hot water supply; no need to wait for the tank to refill.
  • Easy digital temperature control and monitoring.
  • Built-in freeze protection ensures safe operation in cold temperatures.
Cons
  • Higher upfront cost compared with traditional water heaters
  • Limited warranty coverage for this model compared to other Eemax models.
Why should you buy this product:

The Eemax EEM24013 electric tankless water heater is an excellent choice for those seeking an energy-efficient, high-output, and low-maintenance heating solution. It can output up to 13 Kilowatts of heat with a 240 Volt power source and has been designed with stainless steel for maximum durability. The unit is also easy to install indoors, with a 5-year leak and 1-year parts warranty. It’s the perfect choice for any home or commercial space.


2: Rinnai RL94iP Tankless Hot Water Heater

Best tankless propane water heater for large home

Rinnai’s RL94iP Tankless Hot Water Heater is the perfect solution for all your hot water needs, providing an endless hot water supply on demand. It boasts a powerful 9.8 GPM flow rate and 95% thermal efficiency. This Energy Star-certified gas-powered heater utilizes a heat exchanger to provide consistent hot water that never runs out. It is designed for indoor installation. This propane-powered heater offers reliable performance with its liquid propane finish and corrosion-resistant stainless steel construction for long-lasting use. With a convenient 17.5″ width and 31″ height, the RL94iP offers easy installation on any wall or floor surface, while its included valve kit helps you quickly connect to your water supply lines. Enjoy hot water anytime, anywhere with the Rinnai RL94iP Tankless Hot Water Heater.

Key Features:

The Rinnai RL94iP Tankless Hot Water Heater is the ideal solution for saving energy and money. This product has features that make it a reliable and efficient choice.

  • 1: Advanced Energy – Its advanced microprocessor-controlled thermostat monitors the temperature of the water and adjusts the heating supply accordingly. This ensures that you are getting maximum efficiency out of this product while maintaining a comfortable temperature for your needs.
  • 2: Easy Installation –  This tankless water heater can be easily installed indoors without professional help or extra components. It also comes with a valve kit, making the installation even easier. 
  • 3: Durable Design – This tankless water heater is made from durable stainless steel, ensuring it lasts without issues.
  • 4: Safe and Eco-Friendly Operation – The Rinnai RL94iP Tankless Hot Water Heater is CSA-certified, which means it meets the industry’s high safety standards. It also produces zero emissions, making it an eco-friendly option for your home.
  • 5: Smart Controls – This tankless water heater has a user-friendly control panel that lets you easily adjust the temperature settings according to your needs. The LCD provides real-time feedback on the current temperature setting, so you don’t have to guess. This makes maintaining a comfortable temperature for your home and family is easy.
Pros
  • Compact size makes it ideal for indoor installation.
  • A 9.8 gallons per minute flow rate provides ample hot water.
  • Uses up to 40% less energy than traditional tank heaters.
  • Low NOx emissions for cleaner air and reduced environmental impact.
  • Quiet operation with minimal maintenance required.
Cons
  • Expensive upfront cost due to the high-end technology used in this product.
  • Installation is more complicated than traditional tank water heaters.
Why should you buy this product:

The Rinnai RL94iP is an ideal choice for indoor hot water needs. It features a 9.8 GPM flow rate and runs on liquid propane, offering powerful performance with energy efficiency. The tankless design eliminates the need for storage tanks, while its compact size fits easily in tight spaces. It’s certified Energy Star compliant, ensuring safe and efficient operation year-round. With 98% thermal efficiency, you’ll never run out of hot water when needed most. Get the Rinnai RL94iP for your indoor hot water needs today!


3: Rinnai RU180eN Condensing Tankless Hot Water Heater

Best gas tankless water heater for large home

The Rinnai RU180eN is a natural gas-powered tankless water heater designed for outdoor installation. With a 10-gallon capacity, it can provide up to 180 gallons of hot water per hour. This unit’s intuitive design simplifies installation and maintenance while ensuring reliable performance. It comes with a 120 Volt power source and is made of silver finish for added durability. The included components are easy to use for both professionals and DIYers alike. This unit is built to last, with an item weight of 71.8 pounds. This powerful combination of convenience, efficiency, and reliability makes the Rinnai RU180eN the perfect choice for a quality water heater. The Rinnai RU180eN offers plenty of hot water for your home without sacrificing performance. Its impressive 10-gallon capacity and 120 Volt power source make it the perfect solution for any household.

Whether you want to replace an outdated unit or extra hot water, the Rinnai RU180eN is sure to meet your needs. The intuitive design makes it easy to set up and maintain to enjoy hot water worry-free. With its durable silver finish, the Rinnai RU180eN will surely last for years. This unit is backed by a 5-year limited warranty, which gives you peace of mind that it will perform as promised. No matter your needs, the Rinnai RU180eN is sure to provide you with reliable hot water and many years of worry-free use.

Key Features:

Rinnai RU180eN Condensing Tankless Hot Water Heater is an excellent choice for providing hot water in outdoor installations. Some of its features include:

  • 1: High Efficiency –  This water heater has low emissions and Excel Data Entry high-efficiency ratings, which makes it an ideal choice for outdoor applications.
  • 2: Durability –  This tankless water heater is made with durable stainless steel casing and rust-resistant internals, making it ideal for long-term use.
  • 3: Eco-Friendly – The tankless system has low emissions and uses less energy, reducing your carbon footprint while providing hot water on demand.
  • 4: Compact Design – The small size of this tankless water heater makes it perfect for installation in tight spaces, making it an excellent choice for those with limited space.
Pros
  • Highly efficient with a .94 energy factor
  • Compact design that fits almost anywhere; perfect for tight spaces
  • High-capacity 10 GPM hot water output
  • Includes advanced safety features and is CSA-approved for outdoor use
  • Easy to install for any do-it-yourselfer
Cons
  • Costly compared to traditional tanked models
  • Requires a 3/4″ gas line for proper operation.
Why should you buy this product:

The Rinnai RU180eN Condensing Tankless Hot Water Heater is a highly efficient and reliable natural gas-powered unit designed for outdoor installation. This model has a capacity of 10 gallons per minute (GPM) and features a silver finish with an item depth of 12 inches (305 mm). The included wall bracket makes installing the unit easy, and its advanced technology ensures your hot water needs are met quickly and reliably. With its exceptional energy efficiency, this product is ideal for residential and commercial applications. Buy today and enjoy endless hot water!


4: Rinnai V94XiN Tankless Hot Water Heater

Best tankless water heater for large house

The Rinnai V94XIN Tankless Hot Water Heater is the perfect solution for those who want to reduce their monthly utility bills and have an endless hot water supply. This efficient, gas-powered heater is ideal for indoor installation. It provides up to 9.8 gallons per minute of hot water, making it a perfect choice for larger homes or families with multiple bathrooms. The Rinnai V94XIN is also SCAQMD-approved, meaning it meets all air quality standards for those living in areas with strict pollution restrictions. This water heater saves money on bills and reduces environmental impact, and its sleek white finish makes it a stylish addition to any room. With 17.5 x 31 x 13-inch item dimensions, the Rinnai V94XIN is a compact option that fits most spaces. Rinnai’s one-year limited warranty backs this durable heater and can provide hot water for up to 4 bathrooms or 16 showers, making it an ideal choice for busy households. Whether you’re looking to save money on bills or have access to endless hot water, the Rinnai V94XIN Tankless Hot Water Heater is the perfect solution.

With its energy-efficient design, SCAQMD approval, and sleek white finish, this heater offers superior performance at an exceptional value. Enjoy consistent hot water while saving money and reducing environmental impact with the reliable Rinnai V94XIN!

Key Features:

Rinnai V94XiN Tankless Hot Water Heater has several features that make it an excellent choice for indoor water heating. Let’s take a look:

  • 1: High Power Output – This heater provides up to 9.8 gallons per minute of hot water, making it capable of meeting the needs of large households and commercial establishments.
  • 2: Indoor Installation –  This unit is designed for indoor installation, allowing you to save space while providing reliable heat for your home or business.
  • 3: SCAQMD Approved – The Rinnai V94XiN is approved by the South Coast Air Quality Management District, meaning it meets stringent standards for air quality and performs reliably.
  • 4: Easy Maintenance – This product comes with a simple manual that provides detailed instructions on properly maintaining and servicing your heater so you can be sure it will stay in working order.
  • 5: Safety Features – The Rinnai V94XiN is designed with several safety features, such as an automatic shut-off valve that shuts the heater off when it senses overheating or a lack of water flow. In addition, this unit has multiple layers of protection against carbon monoxide poisoning and other hazardous gases.
Pros
  • Great fuel efficiency with a maximum flow rate of 9.8 GPM (gallons per minute)
  • Easy-to-install indoor installation makes it convenient for homeowners
  • Natural gas-powered reduces overall energy consumption costs
  • SCAQMD approved, meaning it has passed strict air quality standards in California
  • Compact size fits into small spaces and is perfect for tight areas like closets
Cons
  • The initial cost of purchase can be expensive
  • You must always have an adequate supply of gas to fuel the heater. Otherwise, it might not work correctly.
Why should you buy this product:

The Rinnai V94XiN Tankless Hot Water Heater is an excellent choice for those looking to save money and time while enjoying an unlimited hot water supply. It’s SCAQMD-approved, so you can know it meets the highest air quality standards. This product offers 9.8 GPM of natural gas power, making it perfect for large homes. With its lightweight and compact design, this water heater is also easy to install and maintain, making it an ideal choice for any home.


5: Rheem Mid-Efficiency 8.4 GPM Outdoor Liquid Propane Tankless Water Heater

Best tankless hot water heaters for large homes

This Rheem Mid-Efficiency 8.4 GPM Outdoor Liquid Propane Tankless Water Heater is an excellent fit for larger households that need a lot of hot water. It can provide up to 8.4 gallons per minute of hot water – enough to meet the demands of most washing machines, dishwashers, and showers running simultaneously. The exterior is made of stainless steel, which makes it easy to clean and highly durable. It also comes with a wall-mount installation method, making it easy to attach the heater directly to your existing outlets without any plumbing work. In addition to its great capacity and easy installation, this water heater has an industry-leading maximum operating pressure of 150 psi for added safety and performance. Furthermore, it is energy efficient and has a low NOx emissions rating – making it great for the environment. This Rheem Mid-Efficiency 8.4 GPM Outdoor Liquid Propane Tankless Water Heater will provide your home with hot water when needed most and ensure your family stays comfortable all year round.‎ ‎ ‎‎‎‎‎ ‎ ‎ ‎‎‎ ‎ ‎‎‎‎

Key Features:‎ ‎‎‎ ‎ ‎‎‎‎

Rheem’s Mid-Efficiency 8.4 GPM Outdoor Liquid Propane Tankless Water Heater offers several great features that make it perfect for use in commercial and residential settings alike:

  • 1: Compact design – This water heater is designed to fit on the exterior wall of your home or business, allowing space-saving installation without needing to take up valuable interior space.
  • 2: Instantaneous hot water –  This unit provides an on-demand hot water supply, with no need to wait for a tank to heat up before you get access to the warm water you need.
  • 3: Cost efficient and energy saving – The Rheem Mid-Efficiency 8.4 GPM Outdoor Liquid Propane Tankless Water Heater is designed to provide maximum energy efficiency, helping you save money on your utility bills.
  • 4: Durable construction – This unit features a stainless steel exterior resistant to corrosion and rust, making it an ideal choice for long-term use.
  • 5: High operating pressure – The water heater can handle up to 150 psi of pressure, ensuring a steady hot water supply even in high-demand areas.
Pros
  • High efficiency of 8.4 GPM for a wide range of applications
  • Outdoor tankless water heater is energy-efficient and environmentally friendly
  • The lightweight and compact design allows it to be installed in tight spaces
  • Can handle high pressure up to 150 psi with ease
  • Made from durable stainless steel material, it ensures long-lasting use
Cons
  • Limited to only liquid propane as the fuel source
  • Expensive compared to other similar tankless water heaters on the market.
Why should you buy this product:


The Rheem Mid-Efficiency 8.4 GPM Outdoor Liquid Propane Tankless Water Heater is ideal for those looking for a reliable and energy-efficient solution to their hot water needs. It features stainless steel construction, 120 volts of power supply, and 150 PSI maximum operating pressure. With its sleek design and easy installation, you can enjoy endless hot water on demand. It is a perfect addition to any outdoor space, making it an ideal choice for those who value convenience and efficiency.


What are our recommendations for the Best Tankless Water Heater For Large Home?

For large homes, the ideal choice for a tankless water heater is the Rinnai V94XiN Tankless Hot Water Heater. This gas-powered unit has a 9.8-gallon-per-minute output, making it suitable for larger households needing hot water. The indoor installation makes installation easy, and the SCAQMD-approved design ensures it meets environmental and air quality standards. This Rinnai model also features advanced temperature control, allowing you to set the exact temperatures desired for each appliance in your home. With all these features combined, the Rinnai V94XiN is an excellent choice for a tankless water heater in a large home.

Relevant Questions:

Is a tankless water heater good for a large family?

Yes! Tankless water heaters can be a great solution for large families. Apex Plumbing, Heating, and Air Pros recommends them for large and small homes. Tankless water heaters provide an endless hot water supply with no waiting time between showers. Additionally, they are incredibly energy-efficient and can save you money on your monthly utility bill. With the right design and implementation, a tankless water heater can be an excellent choice for large families.

What size tankless water heater do you need for a whole house?

The size of the tankless water heater you need for a whole house depends on the size of your household and the desired temperature rise. A tankless water heater with a flow rate of 6 to 8 GPM is recommended for small households of two people. If you have a larger household of four people, an 8 to 10 GPM flow rate is necessary. Additionally, you should factor in the desired temperature rise when deciding how big a tankless water heater is needed for your household.

How big of a tankless water heater do I need for a family of 4?

The correct size tankless water heater for a family of 4 will depend on the number of fixtures that need hot water simultaneously. Generally, you would need a tankless water heater with at least 7 GPM (gallons per minute) flow rate to accommodate 3-4 fixtures running simultaneously. It is important to note that the exact size of the tankless water heater will vary from family to family depending on the number of fixtures, type of fixtures, and other factors such as shower pressure and flow rate. Therefore, it is highly recommended that you consult a certified plumber or contractor to ensure your tankless water heater is sized correctly for your home.

How long do tankless water heaters last?

Tankless water heaters typically last 15-20 years with proper maintenance and usage. However, if it starts to break down or lose efficiency, it may need to be replaced sooner. Common signs that your tankless water heater needs to be replaced include low water pressure, no hot water, and strange noises from the unit. If you notice any of these signs, having your tankless water heater inspected and serviced by a professional is essential. With the proper care and attention, you can enjoy a reliable flow of hot water for many years.

How often should I service my tankless water heater?

You should have your tankless water heater inspected and serviced at least once a year. This is important for keeping it in top condition and ensuring potential problems are identified and addressed early. During the service, the technician will check for any signs of wear or damage to the unit and make sure all components are working correctly. It’s also a good idea to flush your tankless water heater regularly, as this will help to remove any debris and minerals that can build up over time. This will help maintain the efficiency of your unit, extend its lifespan, and ensure you always have a reliable flow of hot water.

How do I know if my tankless water heater works correctly?

The best way to know if your tankless water heater is working correctly is to have it serviced by a professional. This will help ensure all components function correctly and potential problems can be addressed early on. If you notice any strange noises coming from the unit, low water pressure, or no hot water, then it’s time to get it checked out. It’s also essential to monitor your energy bills, as this can signal that your tankless water heater is not working as efficiently as it should. If you notice any sudden increases in your energy costs, it may indicate a problem with the unit, and you should have it inspected immediately.

Conclusion Paragraph

In conclusion, when looking for the best tankless water heater for large home, you need to consider all the factors that come into play. Quality and reliability are essential, and many systems are available at different price points that can suit your needs. The five models we discussed – Eemax EEM24013 Electric Tankless Water Heater, Blue; Rinnai RL94iP Tankless Hot Water Heater, 9.8 GPM Propane, Indoor Installation; Rinnai RU180eN Condensing Tankless Hot Water Heater, 10 GPM Natural Gas, Outdoor Installation; Rinnai V94XiN Tankless Hot Water Heater, 9.8 GPM Natural Gas Indoor Installation SCAQMD approved; and Rheem Mid-Efficiency 8.4 GPM Outdoor Liquid Propane Tankless Water Heater – are all great options to make sure that your hot water needs in your large household will be met. We hope this guide has given you a better understanding of what you should look for when shopping for the best tankless water heater for your large home!

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