Best Hot Water Heater for Large Family

Best Overall
Editors Choice
Ecosmart ECO Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self...
Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater
Rinnai RL75iN Natural Gas Tankless Hot Water Heater, 7.5 GPM
Ecosmart ECO Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self...
Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater
Rinnai RL75iN Natural Gas Tankless Hot Water Heater, 7.5 GPM
Best Overall
Ecosmart ECO Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self...
Ecosmart ECO Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self...
Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater
Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater
Editors Choice
Rinnai RL75iN Natural Gas Tankless Hot Water Heater, 7.5 GPM
Rinnai RL75iN Natural Gas Tankless Hot Water Heater, 7.5 GPM

Although water heaters generally have a lifespan of eight to 10 years after installation, you might realize that your current heating unit simply can’t meet the demands of your growing family. The water heater system that worked back when you had an infant may not meet your needs when several family members want a warm shower every morning.

You might be in a similar crisis if you have a large family that uses a lot of hot water around the same time every day. Such a situation might tempt you to go out and buy any water heater you can find at your local supply store. Before doing that, it would help to research and know the best hot water heater for large family.

And that is what we have for you.

Let’s get started!

EcoSmart ECO 27 Electric Tankless Water Heater, 27 KW at 240 Volts

Ecosmart ECO Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self...
  • Endless on-Demand Hot Water; Consistent hot water when you need it that never runs out;...
  • Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank...
  • Save Energy; EcoSmart tankless electric water heaters are 99% thermal energy efficient; Only...

EcoSmart ECO 27 is a 27-kilowatt tankless electric water heater that is ideal for providing hot water for apartments, condominiums, townhomes, and other whole-house applications.

Unlike the traditional storage-tank water heater that takes up a lot of space, EcoSmart’s sleek, wall-mounted design frees up your floor space for more storage and is 90% smaller than a tank.

It can provide between 2.7 and 6.5 gallons per minute depending on the inlet water temperature; thus, you will be happier knowing the warm water you expect is available endlessly, consistently, and on-demand, allowing you to reduce your water and energy waste.

This Smart Technology electric tankless water heater is configured for climates where the incoming water temperature can reach as low as 37 degrees.

Capable of heating nearly 3 gallons per minute at this temperature, the ECO 27 is the largest electric tankless water heater available with Patented Self Modulating Technology.

This model is well-suited for homes in the northern U.S., Canada, and the southern U.S. for large Roman-style or Jacuzzi tubs that generally have more demanding water usage needs.

With digital temperature control, you can set your temperature in increments of 1 degree to suit your temperature preference.

Please verify that this model is the right size for your hot water needs and electrical requirements before purchase and installation.


  • Endless hot water
  • Saves water heating costs
  • Compact design for more storage space
  • Digital temperature control
  • Advanced self-modulating technology
  • Copper and stainless components for efficiency, durability, and easy replacement
  • Advanced design that is pleasing to the eye


  • No batteries included in case of a blackout
  • Copper might corrode easily

Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater

Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater
  • Sleek and compact design with digital output temperature display
  • ECOSMART tankless water heaters are 99.8-percent energy efficient
  • Manufactured in United States

EcoSmart ECO 36 is a 36-kilowatt tankless electric water heater ideal for providing hot water for whole-house applications in any type of home such as apartments and townhouses.

It can provide between 3.6 and 8.7 gallons per minute depending on the inlet water temperature, thus giving you warm water that is available endlessly, consistently, and on-demand and allowing you to reduce your water and energy waste. This means it can handle up to two showers running simultaneously and never run out of hot water.

It is the largest electric tankless water heater available with patented self-modulating technology ideal for the northern United States, where incoming water temperatures can reach as low as 37 degrees F.

However, this unit is perfect for large tubs or high demand of hot water between multiple applications for homes in the southern United States. It can handle up to 6 GPM, meaning you can run four showers and a sink simultaneously and never run out of hot water.

A digital display temperature control allows you to set your temperature in increments of 1 degree, so you can set the temperature to how you like it.


  • Digital output temperature display
  • It can run multiple applications at the same time
  • Advanced self-modulating technology
  • Endless on-demand hot water
  • Saves water heating costs
  • Sleek and compact design


  •  It is not for personal installation
  • No batteries included in case of a blackout

Rinnai Indoor Tankless Hot Water Heater/ RL75iN Natural Gas /7.5 GPM

Rinnai RL75iN Natural Gas Tankless Hot Water Heater, 7.5 GPM
  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when...
  • Optimal Water Pressure: High-performance 7.5 GPM hot water flow rate for a powerful, constant...
  • Instant Heating: Circ-Logic technology enables recirculation patterns that coincide with your...

Put an end to planning your mornings and evenings around your water heater and set your own schedule thanks to this unit. Ideal for two to three-bathroom homes delivers up to 7.5 gallons of hot water per minute (GPM) while saving energy and money.

Mount your compact RL75iN gas water heater in virtually any room, and vent directly to the outside with a single wall or roof penetration.

Don’t waste water while you wait for it to heat up; with this Rinnai tankless water heater; the ThermaCirc360 technology recirculates hot water through your pipes to get you hot water fast and on-demand.

Your water heater doesn’t have to be a piece of large scary equipment! This unit has a compact design that allows for installation in non-traditional spaces such as the attic, crawl space, or even a closet. It, therefore, saves 16 sq. foot of space since it is only the size of a small suitcase.

The RL75iN unit is packaged in a compact design that cuts CO2 emissions (compared to tanks), thus using less energy and conserving water because you heat water only when you need it.

Due to smart technological advancements such as Wi-Fi monitoring, your trusted Rinnai service provider can monitor the efficiency of your tankless water heater and address issues before you ever experience a break in service.

It’s a smart investment for now and the future when you intertwine sustainability and reliability since every part of this water heater unit is replicable, so components can be easily swapped vs. buying a whole new system.


  • Digital display controller with Error Code indicator
  • Provides hot water to more than one shower
  • Wi-Fi monitoring
  • Endless hot water
  • Produces hot water on-demand
  • Saves valuable space
  • Affordable and efficient savings
  • Sustainable and reliable


  • You cannot use the same vent used with an old water heater tank
  • More extra tools might be needed during installation

Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5)

Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) - Eliminate Time for Hot...
  • CONVENIENT HOT WATER HEATER: 2.5 gallon point-of-use mini-tank fits under your sink to provide...
  • LONG LASTING QUALITY: This electric water heater is easy to maintain and has premium...
  • INDEPENDENT INSTALLATION: 36-37" cord plugs into a 120 volt outlet for independent installation...

Waiting for hot water in the first hour at a sink located far from a primary heating source can be frustrating. Get hot water where it’s needed, when it’s needed with the Bosch ES4 Tronic 3000 T Electric water heater.

You do not have to worry about space since it is a 2.5-gallon capacity point-of-use mini-tank that fits right under your sink and provides a practical and effective solution to your hot water needs.

This smaller model can be plugged right into a 120-volt outlet with the 36-37″ cord or installed in-line with a larger hot water source to provide “on-demand” use.

There is no need to wait for your water to heat up since the glass-lined tank offers great insulation and added durability, while the heater’s fast recovery rate eliminates long waits for hot water.

An external dial allows you to control the temperature range easily, and the temperature-and-pressure relief valve enhances your safety.

The ES4 Tronic 3000 T from Bosch has a sleek and attractive exterior design blended seamlessly with existing décor when installed in a visible location, making this heater a great option in any room.


  • Provides hot water right where you need it
  • Easy to maintain
  • Long-lasting glass-lined material
  • Independent installation
  • Fast recovery rate
  • Supplies up to 2 sinks at a time
  • Easily mounted on shelf, wall, or floor
  • 6-year warranty on the tank


  •  Warranty only applies if an authorized dealer installs the heater
  • Can be pricey
  • Tank might leak after a short period

Takagi T-H3-DV-N Condensing High-Efficiency Natural Gas Indoor Tankless Water Heater

Takagi T-H3-DV-N Condensing High Efficiency Natural Gas Indoor Tankless Water Heater, 10-Gallon Per...
  • Endless hot water, On-demand usage, Compact, Space saving, Energy conservation
  • Computerized safety features, No pilot light to have to worry about
  • Safety features include freeze, overheat, surge protection, and troubleshooting diagnostic...

The T-H3-DV-N is well suited for residential applications such as small restaurants and beauty salons. Utilizing commercial-grade copper alloy for the heat exchanger tubing, the T-H3 is also suitable for heavier residential usages such as space heating or domestic recirculation systems.

It comes with gas inputs of 199,000 BTU; thus, it can produce enough hot water for four bathrooms in warmer climates or three baths in colder climates.

You do not have to worry about waiting for the water in the first hour to heat up. There is so much water wastage that occurs while waiting for it to heat, but you will experience endless hot water with this hot water unit. It becomes warm on-demand usage, thus saving water consumption and energy conservation.

Safety measures are important on this water heater; thus, computerized safety features include freeze, overheat, surge protection, and troubleshooting diagnostic codes. Showers and other direct usages of hot water will be swift for you without the fear of scalding or a wave of freezing water.

The primary heat exchanger utilizes commercial-grade copper alloy for 25 times better heat transfer than stainless steel, integrated controls, and power cord as standard features.


  • Endless hot water
  • On-demand usage
  • Saves space, energy, and water
  • Computerized safety features
  • Safety features like freeze and troubleshooting diagnostic codes
  • Satisfies the 2012 SCAQMD Rule
  • Suitable for heavier residential usages


  • Buying from authorized dealers may lead to purchasing a defective unit
  • Might not handle natural gas well

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

Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray
  • ON/OFF Dial Control with adjustable digital temperature display
  • Self-modulating power control
  • 24kW Model Flow Rate: up to 5.9 GPM for RTEX-24

Professional Classic tankless electric water heaters offer continuous hot water quickly and on-demand for single point-of-use or multiple applications. The Rheem RTEX-24 is no exception since you will comfortably enjoy its on-demand and continuous hot water for as long as you want.

There is no need to worry about abrupt temperature changes, either scalding hot water or cold shock. This electric water heater has a digital temperature control that works in increments of 1°F ranging from 80°F to 140°F. You can set or adjust your water to the desired temperature swiftly.

Installation of this Rheem performance platinum unit is simple, and you can do it yourself without spending extra money from hiring a plumber to help. All you have to do is choose an ideal point on your wall to mount it, and the threaded ports will allow you to fix the water heater easily to your existing plumbing works.

Robust copper immersion heating elements with brass top increase durability and are threaded for easy replacement in case of damage.

Wastage of water and energy will be a thing of the past for you since through the on-demand heating system, water that would have to run for some minutes before heating will be saved. Energy used to heat the water will not be wasted too since water heats at the point of use, giving you enough hot water supply.

The Rheem RTEX-24 water heater can support several home applications simultaneously, such as the washing machine, dishwasher, or multiple showers.


  • On-demand, continuous hot water
  • Compact and stylish
  • Water and energy efficient
  • Simple Installation
  • Digital temperature display
  • External digital thermostatic control
  • Advanced self-modulation
  • Durable Copper Immersion


  • A bit pricey
  • It can’t replace a 40 gal tank heater with a 30A double pole breaker directly

Rinnai Indoor Tankless Hot Water Heater / V94IN/ Natural Gas / 9.8 GPM

Rinnai V94iN Natural Gas Tankless Hot Water Heater, 9.8 GPM
  • Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and...
  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when...
  • Optimal Water Pressure: High-performance up to 9.8 GPM hot water flow rate for a powerful,...

The Rinnai tankless natural gas water heater can be the center of your entire home that will deliver hot water to the most critical areas, providing your family with a happy and comfortable lifestyle. Such areas include showering, bathing, dishwashing, and laundry.

With this unit, hot water is always available to you, no matter how much or how often you need it, without ever running out. Your large family will enjoy a consistent flow of hot water with a capacity of 9.8 gallons of water per minute(GPM).

Your energy costs will be minimized by investing in this water heater. With an energy efficiency range of 0.82/0.81, you are guaranteed it will bring down your energy costs. This gas water heater utilizes natural gas in its operations.

Reduced incoming water flow rate shouldn’t be an issue since this energy-efficient unit will fit into your pre-existing plumbing works and serve you with hot water as you need it.

Contrary to the traditional tank water heaters that would take up your space, the Rinnai tankless water heater requires minimal space, and you can choose to have it either indoors or outdoors. This unit is among the best gas water heater as it can effortlessly serve multiple hot water points simultaneously.

It is fitted with a recirculation technology that allows the hot water to get to you fast. This means you don’t have to waste time and keep testing whether your water is hot enough.

With advancements in technology, the Rinnai gas water heater comes fitted with a Wi-fi monitoring service that makes its maintenance easy. It allows you to prevent and manage the risk of having the whole system breakdown in good time.

This tankless water heater may be expensive, but it will last twice as long as standard water heater tanks, thus saving you money.


  • On-demand hot water supply
  • Long-lasting
  • High flow rate
  • Provides hot water at different points simultaneously
  • Energy -Efficient
  • Wi-fi enabled
  • Low maintenance requirements
  • It will save you money
  • Requires minimal space


  • Not very easy to install
  • High price range

Stiebel Eltron Tankless Heater, Tempra 36 Plus, Electric

Stiebel Eltron Tankless Heater – Tempra 36 Plus – Electric, On Demand Hot Water, Eco, White
  • On-demand, continuous and unlimited supply of hot water
  • Sleek design saves space and no venting required
  • Electronic switch activated for virtually silent operation. Phase- single 60 Hz. Voltage- 208...

The Stiebel Eltron Tempra 36 Plus tankless water heater features exclusive advanced flow control to maintain water temperature for constant comfort automatically.

It reduces water flow slightly if hot water demand exceeds its capacity to ensure that your running hot showers are not be interrupted.

Tempra 36 Plus will typically use 15-20% less energy than conventional electric tank water heaters. Although, it’s possible to save more energy depending on personal home usage habits.

The difference is that conventional tank water heaters continually store hot water, and as a result, lose 15%-20% of the total energy consumed to the environment around them. This is called standby heat loss. Tank water heaters that use gas or oil are even less efficient because they also lose heat through their vents to the outdoors.

This tankless water heater does not need venting and will not store hot water, waiting for you to use it since it operates on-demand to provide continuous and endless hot water when you need it and not waste energy when you don’t.

Having a noisy electric hot water heater can be quite uncomfortable for your family. To avoid such occurrences, this energy-efficient water heater has an electric switch that you can activate for exceptionally silent operation.

Purchase this tankless heater with confidence due to the 7-year leakage and 3 years complete warranty.


  • Electronic switch activated for virtually silent operation
  • 7 Years leakage and 3 years parts complete warranty
  • On-demand hot water
  • Offers continuous and endless hot water
  • Energy efficient
  • Advanced flow control
  • Sleek design that saves space
  • Digital temperature display


  • No specific installation kit
  • Installation may require a professional

Camplux ME60 Electric Mini-Tank Water Heater, 6-Gallon with Cord Plug

Camplux ME60 Mini Tank Electric Water Heater 6-Gallon with Cord Plug,1.44kW at 120 Volts
  • Saving Energy & Money- Built in insulation foam, reduces heat loss. 6-gallon point-of-use...
  • High Quality Built & Elegant Design- Camplux electric water heater has glass-lined tank for...
  • UL Approval Safety - Thermostat Control allows adjustment of water temperature. High Limit...

Outdoor life can always give your family enthusiasm and happiness, and this Camplux outdoor unit has that figured out. It is part of the JAL Group and dedicated to providing you an easy and efficient outdoor lifestyle. Being more than 15 years of strong experience in the gas and electrical industry, the JAL group has your needs in mind.

This mini-tank water heater has a glass-lined tank design, making it easy to maintain and durable for long life. Also, it is high efficiency for heating, saving energy, and your bills.

No need to worry about temperature changes of your water since this mini-tank water heater is equipped with an adjustable thermostat that, once set, will automatically control water temperature. The red indicator lamp remains illuminated while the water is being heated.

When the water heater is not being used for an extended period of time, and there is a risk of freezing, either unplug and drain the water heater or turn the thermostat knob to the snowflake position to guard against freezing.

Installation for you will be a breeze for you just need to plug into a 120v electric supply socket. Simply tap into the cold water line and install the water heater directly at the sink to provide hot water.

With this unit, heat loss is minimized due to the short-distance water supply that minimizes wait time for hot water, saving energy and your bills. Whether as a sole water heating source for a single sink or as a supplement to an existing heater located far from the sink, this premium tank water heater’s stand-by loss is minimal!

This unit is lightweight and compact, designed to be mounted on the floor, shelf, or wall, making it very friendly to any small spaces. Purchase this water heater and enjoy camping and outdoor luxury with your family!


  • Quick hot water supply
  • Reduces heat losses
  • Enough capacity of 6 gallons of hot water
  • Friendly to small spaces
  • Equipped with an adjustable thermostat
  • Easy installation
  • Reduces energy costs


  •  Can only provide hot water to 2-3 sinks at once
  • No indication of the length of the electrical cord

Tankless Water Heater Electric ECO TOUCH 9KW 240V on Demand Water Heater

Tankless Water Heater Electric ECOTOUCH 9KW 240V on Demand Water Heater Self-Modulating Instant Hot...
  • 【INSTANT & SUFFICIENT HOT WATER】Applied with 9kW heating system, the electric tankless...
  • 【SMART SELF MODULATION】The on demand electric water heater ECO90B adjusts power input based...
  • 【UPGRADED HEATING SYSTEM】Featuring micro-computer control and patent heating technology,...

Being one of those limited choices with smart modulation heating, ECO TOUCH ECO90 tankless smart water heater provides instant and endless hot water with optimal thermal efficiency of 99.8% and minimum energy cost. Therefore, the tankless water heater heats 1.5GPM water from 67℉ to 106℉ and will surely cut your electric bill and save money.

Designed with a sturdy structure, it is a perfect solution for kitchen and bathroom sinks, dishwashers, and washing machines, and you could use it for shower purposes in the USA’s southern area.

Applied with a 9kW heating system, the electric tankless system supplies instant hot water of 116℉or higher temp, thus no waiting for preheating nor temperature fluctuations. This factor makes it a perfect companion for sinks, bringing you the perfect comfort and relaxation experience.

The on-demand electric tankless heater adjusts power input based on flow rate and temp setting in real-time. As water flow reduces, power input decreases, thus you still get ideal, comfortable temperature instead of scalding hot water. Such optimal energy efficiency of 99.8% saves considerable electricity charge per year.

Featuring micro-computer control and patent heating technology, the ECO90B promises no “cold water sandwiching.” It also has a unique heating element that eliminates any corrosion inside pipes to extend the service lifespan.

You can expect outstanding performance for years to come since this unit is approved by ETL and qualifies for UL.

The ECO90B electric tankless water heater comes with a digital display and a touch control panel, so temperature setting is an easy job.

It is also space-saving and has a stylish, modern design that blends in any decor.


  • Instant and sufficient hot water supply
  • Smart self-modulation
  • Upgraded heating system
  • Safe and durable
  • Digital display
  • Touch control panel
  • Saves energy costs and space
  • Stylish modern design


  •  Shower usage only applies to the southern area of the United States.
  • The unit should be installed professionally

Factors to Consider When Buying a Hot Water Heater for a Large Family

Cold showers can be unpleasant and traumatizing sometimes and is not an experience you would want to endure again. However, without a reliable and quality water heater, you and your family will have to welcome the chill with open arms.

You might also want to upgrade or replace your current heating system. The market is flooded with new styles and models, and therefore, for an efficient system, here are some factors you would like to consider before making any purchase.

Let’s delve in:

a. Energy Source

To enjoy hot water in your home, you’ll need an energy source to heat the water. Since we don’t have the same fuel options depending on where you live, you can rule out some of them right away and consider others.

Electricity is readily available and works with conventional tank-type designs, plus on-demand tankless heaters and other options. Natural gas and propane works with a variety of hybrid water heaters and comes in handy during a prolonged power outage.

Therefore, decide between gas and electric water heaters depending on which is suitable for you.

b. Water Heater Types

Water heaters vary in types, such as storage water heaters, also known as tank water heaters, and tankless water heaters, also known as on-demand water heaters.

1. Tank Water Heaters

Here, you might like to look out for the cost, efficiency, and ease of installing tank water heater types. Since the water is heated and kept warm by either electric heating elements or a burner fueled by natural gas or propane, consider a water system with high insulation materials. They should be cheaper and have a more straightforward installation compared to tankless water heaters.

2. Tankless Water Heaters

These heaters provide hot water on demand by heating water as it travels through the unit, utilizing electricity or a gas burner. Because you’re only heating the water you need, significant savings in energy use are possible. So, consider the demand if you have a large family; you might want to install multiple units in parallel. Also, their lifespan should be longer, although the cost might be a bit higher.

c. The System’s Safety Precautions

Ensure to look out for the protection measures that the water heater manufacturer has taken into account. This is more crucial for electric heaters. The elements and thermostats should be made of the right material and the electricity line separated from the waterline. Consider getting a heater that is UL safety approved to avoid scalding incidents. This way, you will have peace of mind knowing you are safe using it.

d. Water Flow Rate

Read the manufacturer’s guide keenly to ensure the heater you intend to buy doesn’t reduce your incoming water flow level. Buy a hot water heater that is compatible with your already existing plumbing works, as this will ensure a consistent hot water supply from your new water heater.

e. Installation and Maintenance

Consider a water heater that is easy to install and maintain. Hiring a professional plumber to install your system might be expensive, so opt for the do-it-yourself heater. Opt for water heaters with a warranty offered since you wouldn’t want to keep incurring costs for replacements or repairs.

Ensure to check out the hot water heater with a warranty offered, as it will assure you of its functionality.

f. Space and Size

If you’re considering going with a storage/tank-type water heater, one of the key considerations will be the tank’s size. Tankless water heaters usually occupy a small space since they are wall or floor-mounted. Therefore, evaluate the space you have to accommodate the water heater.

Follow the aforementioned tips, do thorough research on what you want, make your purchase, and enjoy your hot water!

 Frequently Asked Questions

1. What is the best water heater for a large family?

TOP PICK: Rinnai RUC98iN Tankless Water Heater.With its high 9.8 gallons-per-minute (GPM) flow rate, it’s perfect for families.

2. How big of a hot water heater do I need for a family of 4?

A family of 3 to 4 people should purchase a 50-60 gallon water heater. On the other hand, a household with 5 – 7 people may require a water heater with a 60-80 gallon water tank.

3. What size hot water heater do I need for a family of 5?

3 to 4 people, you’ll need at least a 50-gallon capacity tank (electric) or a 40-gallon capacity tank (natural gas or liquid propane). If your family size is 5 or more, you’ll need an 80-gallon tank (electric) or a 50-gallon tank (natural gas or liquid propane).

4. Is A.O Smith better than Rheem?

Both A.O Smith and Rheem are great names in the water heater industry. Rheem has a better overall product offering with a higher reach in the industry. But AO Smith is known to have a better customer experience. Regardless of what type of water heater you choose, both options will provide you with excellent longevity.

5. What is the largest residential hot water heater?

The Westinghouse 60 Gallon water heater is one of the largest tanks available on the market today.

6. What water heaters do plumbers recommend?

If you have a relatively low GPM (under 5 GPM), a gas tankless water heater or heat pump water heater could work well for you. Both gas tankless water heater and heat pump water heaters work well for households who don’t have a high demand for hot water at any given time.

7. Can a tankless water heater fill a tub?

A tankless water bath can fill the water bath with hot water. However, you must ensure that the bathtub flow rate matches the water heater’s rate. If your bathtub has a high flow rate, you will need a high heating capacity to meet the need. A tankless water heater can provide a continuous supply of hot water.

8. Is there a big difference between a 40-gallon and 50-gallon water heater?

The cycling losses measure how much heat is lost as the water circulates through the system. Combined, these losses make up the water heater’s energy factor (EF). With the energy factors being equal, the difference in cost of running a 50-gallon heater over a 40-gallon heater is essentially insignificant.

9. How long do Rheem water heaters last?

These Rheem water heaters come with a 6-year warranty on parts and the tank plus a 1-year labor warranty. The 6-year warranty does not mean the unit will only last that long: your water heater, if properly maintained, should have a lifespan of at least 8 years.

10. How many showers can you get out of a 50-gallon water heater?

A 50-gallon water heater is the most common tank we install. It is such a common size because it can supply hot water for 3 – 5 people. Considering an average shower uses 17.2 gallons of water, you can typically have enough hot water for up to five people to take a shower within an hour.

1 Comment
  1. […] label for the details. You should be able to find the brand’s label on the side of your water heater. It’s affixed next to the panel that will put aside when replacing the heating element. […]

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