10 Best Water Heaters for Residential Use – Reviews and Buyer’s Guide

Don’t you hate it when the cold water shocks your skin every time you take a shower or do the dishes?

We hate it too. But worry not! The ultimate answer to your prayers is a water heater! It makes your life easier, and it comes with a ton of options. There are electric heaters, gas-fired heaters, tankless ones, and many more.

If you don’t mind splurging a little, electric water heaters are a great option. Although expensive, they perform better. They have better design, are easier to install, and maintain.

Yet, gas water heaters have a higher efficiency rate than electric heating systems.

Tankless water heaters are famous for their unique features and long lifespan.

With so many choices, it can get overwhelming at first while searching for the best water heaters for residential use. But, we’re here to the rescue!

So, let’s go through our review of the ten best water heaters for residential use. Our analysis includes its features, highlights, pros, and cons. So, let’s begin!

Our Top Pick

Rinnai RUC98iN Ultra Series

Rinnai RUC98iN Ultra Series is an excellent choice if you want a premium quality water heater. And, it’s also great for the environment because it creates minimal Co2 discharge.

It has an innovative design with concentric PVC venting and twin-pipe in one unit. 

This tankless water heater is also efficient, with a massive flow rate of 9.8 gallons per minute. 

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Quick Summary of Best Water Heaters for Residential Use

Product Image Product Name
Top Pick for Excellent Performance
Rinnai RUC98iN Ultra Series Tankless Water Heater

Rinnai RUC98iN Ultra Series is a beast amongst other fellow water heaters. It is efficient, compact, and also includes both concentric or PVC venting option in a single unit. So, you don’t have to worry about buying extra spare parts.

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Top Pick for Overall Performance
Stiebel Eltron Tempra 24 Plus Tankless Water Heater

Stiebel Eltron Tempra 24 Plus tankless water heater is undeniably one of the most powerful water heaters. Its unique technology delivers instant hot water while also saving energy.

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Budget-Friendly Water Heater
Bosch Electric Mini-Tank Water Heater Tronic 3000T (ES8)

This mini-tank can fit under your sink. The tank of Bosch Tronic 3000T (ES8) has a capacity of 7 gallons and can produce hot water instantly when you need it.

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Best Value for Money
Rheem Tankless Natural Gas Water Heater

Whether you want hot water in a single faucet or multiple showerheads, Rheem RTGH-95DVLN Water Heater does it all for you. Ideal for homes with multiple families, this water heater has a super-efficient flow rate that produces up to 9.5 gallons of water every minute. That’s why it is one of the best gas water heaters available today.

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Water Heater with Enormous Flow Rate
Takagi T-H3-DV-N Tankless Water Heater

Takagi T-H3-DV-N is a gas-fired water heating unit that can produce hot water at the rate of 10 gallons per minute. If you want to invest in a highly efficient water heater for a large family, this appliance checks all the boxes for you.

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Smallest Whole-House Model for Water Heater
Rheem RTEX-18 Residential Tankless Water Heater

RTEX-18 by Rheem is one of the smallest whole-house water heating models you can find on the market. This unit is powered by a self-modulating technology that automatically adjusts the power input according to the required temperature.

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Water Heating System with a Lifetime Warranty
EcoSmart ECO 27 Electric Tankless Water Heater

Ideal for medium-sized households, this water heating system is capable of delivering a continuous supply of hot water for up to four bathrooms. This appliance comes with digital temperature control that lets you control the water temperature as per your needs.

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Top Pick for Sleek and Space-Saving Design
EcoSmart ECO 11 Electric Tankless Water Heater

This popular water heater can produce instant hot water and allows you to choose hot water in single or multiple faucets. Unlike conventional water heaters, EcoSmart ECO 11 is 98% energy efficient, meaning this appliance also reduces your electricity bill.

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Cheap and Affordable Water Heater
WaiWela WM-2.5 Mini Tank Water Heater

WaiWela WM-2.5 Mini Tank can fit right under your kitchen sink easily. Unlike other water heating systems, this model features an adjustable thermostat that automatically regulates the temperature for your ease.

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Water Heating Appliance with In-Built Filtration System
InSinkErator HWT-F1000S Instant Hot Water Tank

InSinkErator HWT-F1000S is a combination of high-class stainless steel materials that are highly durable and long-lasting. Additionally, its in-built filtration system is what makes it stand out from the rest, which means it not only produces hot water, but the water is also clean and safe.

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Best Water Heaters for Residential Use of 2020 - Reviewed

Rinnai RUC98iN Ultra Series Tankless Water Heater

Top Pick for Excellent Performance

Features Highlights

  • Requires natural gas
  • Easy to install
  • Endless supply of hot water
  • Offers both Concentric and PVC venting in a single unit
  • Has a space-saving tankless design
Rinnai RUC98iN Ultra Series is a high-end water heater that requires natural gas. It offers you the luxury to choose between concentric or twin-pipe PVC venting. It can even supply hot water to many showers and faucets at once. Check Price on Amazon

Product Specification

  • Dimensions:

    10 x 18.5 x 26 inches

  • Weight:

    82 pounds

  • Voltage:

    120 volts

  • Flow Rate:

    9.8 GPM

  • Warranty:

    Limited 12 years on heat exchanger, five years on parts, 1 year on labor

Pros

  • Environment-friendly and sustainable
  • Delivers continuous supply of hot water
  • Compact and space-saving design
  • Easy to install
  • Includes isolation valve kit

Cons

  • Poor customer service
  • Relatively expensive

Our Verdict

If you prefer a premium quality water heater, you should, without a doubt, go for Rinnai RUC98iN Ultra Series. This model offers both twin-pipe as well as concentric PVC venting in a single unit. In terms of performance, this system delivers an endless supply of hot water to multiple showers and faucets simultaneously.

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Stiebel Eltron Tempra 24 Plus Tankless Water Heater

Top Pick for Overall Performance

Features Highlights

  • Has Advanced Flow Control to deliver an unlimited supply of hot water
  • Includes Self-modulating technology that saves energy
  • Compact and sleek design
  • Does not require venting
  • Allows warranty of 7-years for leakage and 3-years for parts
Remarkable energy-saving features, compact design, and powerful output — Stiebel Eltron Tempra 24 Plus is best for reliability and comfort. Check Price on Amazon

Product Specification

  • Dimensions:

    4.6 x 16.6 x 14.5 inches

  • Weight:

    16.1 pounds

  • Voltage:

    240 volts

  • Flow Rate:

    5 GPM

  • Warranty:

    7-years for leakage and 3-years for parts

Pros

  • Unlimited supply of hot water
  • Consumes less energy
  • Compact and sleek design
  • Requires no venting
  • Great warranty deal

Cons

  • Poor customer service

Our Verdict

It may be hard to believe that a top-notch water heater like Stiebel Eltron Tempra 24 Plus, is available at such a decent price. Powered by Advanced Flow Control technology, this unit consistently maintains the water temperature and provides hot water whenever you need it. You can also reduce your utility cost with its innovative self-modulating technology that reduces energy use.

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Bosch Electric Mini-Tank Water Heater Tronic 3000 T (ES8)

Budget-Friendly Water Heater

Features Highlights

  • Designed to take up less space
  • Easy Installation
  • Delivers hot water anytime
  • Easy to use and install
Bosch Tronic 3000 T (ES8) is a compact 7-gallon mini-tank that fits right under your sink to deliver hot water anytime. This lightweight water heater is designed to be hardwired and is very user-friendly. Check Price on Amazon

Product Specification

  • Dimensions:

    10 x 10 x 16 inches

  • Weight:

    29.5 pounds

  • Voltage:

    120 volts

  • Flow Rate:

    1.5 GPM

  • Warranty:

    6-years on the unit, 2-years on parts

Pros

  • Space-saving design
  • Easy installation
  • Delivers instant hot water supply
  • Easy to use and install

Cons

  • Poor customer service

Our Verdict

If you’re looking for a decent and budget-friendly water heater, Bosch Tronic 3000 T (ES8) is the one for you. The 7-gallon mini-tank can fit almost anywhere while still providing easy access to hot water. This system is inexpensive, highly efficient, and easy to use.

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Rheem RTGH-95DVLN Natural Gas Water Heater

Best Value for Money

Features Highlights

  • Features stainless steel condensing heat exchanger
  • It is 94% energy efficient
  • Smart electronic controls for efficiency and safety
  • Environment-friendly with low NOx discharge
  • Consists of Guardian Overheat Film Wrap (OFW) for safety
  • Offers 12-years warranty on heat exchanger
Comfortable and convenient — Rheem RTGH-95DVLN Water Heater is an excellent choice for homes with busy families. It is an excellent investment if you’re looking for a water heater that can provide hot water in single or multiple faucets in your entire home, including garages, outbuildings, or even RVs. Check Price on Amazon

Product Specification

  • Dimensions:

    18.5 x 9.8 x 27.5 inches

  • Weight:

    79 pounds

  • Voltage:

    120 volts

  • Flow Rate:

    9.5 GPM

  • Warranty:

    12-years on heat exchanger, 5-years on parts, 1 year on labor services

Pros

  • Stainless steel condensing heat exchanger
  • It is 94 percent energy efficient
  • Smart electronic controls for efficiency and safety
  • Environment-friendly
  • Guardian Overheat Film Wrap (OFW) for safety

Cons

  • It is relatively expensive
  • Requires professional technicians for Installation
  • It has leakage issues
  • Requires regular cleaning

Our Verdict

While this water heater is one of the most expensive products on this list, it’s exceptional features reimburses every penny you invest on it!
With the flow rate of 9.5 gallons per minute, this water heater can deliver enough hot water, even for larger households.

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Takagi T-H3-DV-N Tankless Water Heater

Water Heater with Enormous Flow Rate

Features Highlights

  • Can produce 10 gallons of water per minute
  • Compact and space-saving design
  • Delivers endless hot water for on-demand usage
  • The system is energy efficient
  • Follows the 2012 SCAQMD Rules 1146.2 for low NOx Emissions
With a high flow rate of 10 gallons per minute, Takagi T-H3-DV-N is one of the most efficient water heating systems on the list. This gas-fired unit is ideal for larger households that have excessive hot water demands. Check Price on Amazon

Product Specification

  • Dimensions:

    11.2 x 17.8 x 24.9 inches

  • Weight:

    59 pounds

  • Voltage:

    AC 120V

  • Flow Rate:

    10 GPM

  • Warranty:

    Limited 15-years on the appliance/ 5-years on parts, and one-year conditional warranty on labor

Pros

  • Can be used in both residential as well as commercial properties
  • Unparalleled flow rate
  • Energy-efficient
  • Low carbon footprint
  • Compact and space-saving design

Cons

  • Hefty initial price
  • Installation can be complicated
  • Reports of premature breakage

Our Verdict

If you’re looking for a powerhouse appliance that can handle multiple faucets at once, this product is the one for you. Its power, efficiency, and massive warranty make it to the list of your ‘must-haves’ at home.

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Rheem RTEX-18 Residential Tankless Water Heater

Smallest Whole-House Model for Water Heater

Features Highlights

  • Advanced self-modulation system that adjusts power for instant hot water
  • Highly durable copper immersion heating elements
  • Simple installation and easy replacement
  • Features an external digital thermostatic control
  • Saves you plenty of power and reduces the utility cost
RTEX-18 is one of the smallest whole-house models from Rheem that has a self-modulating technology. With this feature, the system automatically adjusts the power usage to the required temperature. It also consists of two copper heating elements to ensure faster heating. Check Price on Amazon

Product Specification

  • Dimensions:

    4 x 15 x 19 inches

  • Weight:

    8.5 pounds

  • Voltage:

    240 volts

  • Flow Rate:

    4.4 GPM

  • Warranty:

    5-years limited warranty on the heating chamber and 1-year warranty on parts

Pros

  • Highly energy efficient
  • The on-unit controlling feature that helps to adjust the temperature
  • Compact design that virtually fits anywhere
  • It comprises of copper immersion. heating elements

Cons

  • Does not come with a user manual
  • Warranty is insufficient

Our Verdict

For such a high-quality water heater, RTEX-18 comes at a fairly reasonable price. With a flow rate of up to 4.4 gallons per minute, this system is ideal for a small-sized family. For your convenience, this system features a self-modulating technology that adjusts power usage and works exceptionally fast.

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EcoSmart ECO 27 Electric Tankless Water Heater

Water Heating System with a Lifetime Warranty

Features Highlights

  • Saves up to 50% on water heating cost
  • Digital temperature control
  • Includes copper and stainless steel designed for durability and efficiency
  • Compact size to save storage space
  • It includes a self-modulating technology
EcoSmart ECO 27 is one of the largest among the water heater models from EcoSmart. This system can deliver continuous hot water supplies for three to four bathrooms at once. With such massive capacity, this model can easily supply hot water for a medium-sized home with four to five people in a moderate climate. Check Price on Amazon

Product Specification

  • Dimensions:

    3.625 x 17 x 17 inches

  • Weight:

    11 pounds

  • Voltage:

    240 volts

  • Flow Rate:

    6 GPM

  • Warranty:

    Lifetime warranty on electronics, exchanger and element

Pros

  • It features a self-modulating technology.
  • It comes with digital temperature control.
  • It requires less maintenance.
  • It is easy to install.
  • It has a high flow rate.
  • Lifetime warranty

Cons

  • It must be installed by a licensed professional due to a warranty policy.
  • It requires at least 200amp electrical service for safe operations.

Our Verdict

If you’re willing to buy a powerful water heater for a medium-sized home, EcoSmart ECO 27 is your best bet. With its space-saving design, efficiency, and lifetime warranty, this heater might be your best option.

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EcoSmart ECO 11 Electric Tankless Water Heater

Top Pick for Sleek and Space-Saving Design

Features Highlights

  • Saves up to 60 percent on electricity bills
  • 99.8 percent energy efficient
  • Patented with self-modulating technology
  • Offers a lifetime warranty
  • Delivers an endless supply of hot water
EcoSmart ECO 11 is a point-of-use water heater that supplies instant hot water anywhere you need it. You can effectively use this system for single-use or multiple applications, especially if you live in colder places. Check Price on Amazon

Product Specification

  • Dimensions:

    3.8 x 8 x 11.5 inches

  • Weight:

    6.65 lbs

  • Voltage:

    240 volts

  • Flow Rate:

    2 GPM

  • Warranty:

    Lifetime warranty on electronics, exchangers and elements

Pros

  • Constant supply of hot water
  • Reduces the utility bills
  • Able to mount on the wall
  • Digital controls to adjust the settings to the desired temperature
  • Compact and lightweight

Cons

  • It is slightly expensive.

Our Verdict

Ecosmart ECO 11 is a top-quality point of use water heater that can also make for an attractive decor piece. It can instantly supply hot water to both the kitchen and bathroom simultaneously and comes with a lifetime warranty.

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WaiWela WM-2.5 Mini Tank Water Heater

Cheap and Affordable Water Heater

Features Highlights

  • Equipped with an adjustable thermostat with overheat protection
  • No CFC
  • Compact design
  • It features a glass-lined tank
  • Attached power cord
  • Quick and easy installation
WaiWela Mini Tanks ensure quality and efficiency to provide instant hot water and make your life easier. Simply install this mini tank under your sink and get continuous hot water anytime. Check Price on Amazon

Product Specification

  • Dimensions:

    10.8 x 11.8 x 14.5 inches

  • Weight:

    18.1 pounds

  • Voltage:

    110 volts

  • Flow Rate:

    2.5 GPM

  • Warranty:

    6 year limited warranty on tank and 2 year warranty parts

Pros

  • It has an adjustable thermostat with overheat protection.
  • Small in size that can fit anywhere
  • High-quality glass-lined tank
  • Easy to install

Cons

  • Issues with thermostat malfunctioning

Our Verdict

If you’re looking for a high quality water heater for a fairly reasonable price, you should opt for WaiWela WM-2.5 Mini Tank. This water heater is well-built with high-quality materials and delivers constant hot water even for a small household. With its sleek design, this model can fit anywhere.

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InSinkErator HWT-F1000S Instant Hot Water Tank

Water Heating Appliance with In-Built Filtration System

Features Highlights

  • UL Certified Stainless steel tank constructed for a longer life
  • Adjustable temperature control
  • includes F-1000S Filtration System
  • Comes with a 3-year limited warranty on tank and year long warranty on the filtration system
This stainless steel hot water tank has improved performance with ⅔ holding capacity. It is engineered to last long, gives off a high-end appearance, and its in-built filtration system delivers hot that’s also very clean. Check Price on Amazon

Product Specification

  • Dimensions:

    6.8 x 6.2 x 11 inches

  • Weight:

    7.7 pounds

  • Voltage:

    115 volts

  • Flow Rate:

    0.06 GPM

  • Warranty:

    3 Year Limited In-Home Warranty on Tank, 1-Year Warranty on Filtration System

Pros

  • UL Certified Stainless steel tank
  • Adjustable temperature control
  • It also includes an in-built filtration system
  • 3-year limited warranty
  • Energy efficient

Cons

  • Massive water leakage

Our Verdict

InSinkErator HWT-F1000S has a water filtration system, which is quite rare among many water heaters of today. The combination makes this water heating system, a one of a kind.

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Comparison Table

Water HeatersDimension (in inches)Weight (in pounds)Voltage (volt)Flow Rate (GPM)
Rinnai RUC98iN Ultra Series Tankless Water Heater10 x 18.5 x 26821209.8
Stiebel Eltron Tempra 24 Plus Tankless Water Heater4.6 x 16.6 x 14.516.12405
Bosch Electric Mini-Tank Water Heater Tronic 3000T (ES8)10 x 10 x 1629.51201.5
Rheem Tankless Natural Gas Water Heater18.5 x 9.8 x 27.5791209.5
Takagi T-H3-DV-N Tankless Water Heater11.2 x 17.8 x 24.95912010
Rheem RTEX-18 Residential Tankless Water Heater4 x 15 x 198.52404.4
EcoSmart ECO 27 Electric Tankless Water Heater3.6 x 17 x 17112406
EcoSmart ECO 11 Electric Tankless Water Heater3.8 x 8 x 11.56.52402
WaiWela WM-2.5 Mini Tank Water Heater10.8 x 11.8 x 14.518.11102.5
InSinkErator HWT-F1000S Instant Hot Water Tank6.8 x 6.2 x 117.281150.06

Benefits of Water Heaters

Water heaters make your everyday life easier. They also don’t consume much energy, helping you save a little on the utility costs. But, if you are still not convinced as to why you should invest in a water heater, here are some more reasons: 

Convenience

Many water heating systems are usually compact in size, so they require minimal space for installation. The small size makes it convenient to install the unit anywhere you want. The lightweight and portability also make it ideal for outdoor uses.

Low Maintenance

Water heaters are of low maintenance. They are crafted with advanced technology and are made up of high-quality materials. They are durable and don’t require frequent repair and maintenance. 

Eco-Friendly

As modern water heaters use less energy, greenhouse gases are minimal. Many water heaters are a blend of replaceable and recyclable parts, which minimizes the discharge of waste materials.

Reduced Energy Costs

Surprisingly, high-efficiency water heaters consume up to 50% less energy than regular water heaters. It is partly because these types of heaters are quick. While the traditional models work all day and night to keep the water hot, well-insulated models only operate when users demand hot water. Although most water heating systems can be expensive, you’ll get your money’s worth in the long run. 

Durability

Top-quality water heating systems are very durable and have a long lifespan. These systems generally include high-quality materials that can last for years. Except that, many premium water heaters also provide a warranty of at least 10 to 25 years.

FAQs

A hot water recirculation system is a plumbing system that circulates hot water to fixtures continuously to quickly deliver hot water to the faucet. Unlike regular water lines, regulating systems transfer water to the fixtures instead of relying on low water pressure.

Generally, the average lifespan of a gas water heater is roughly nine years. But it also highly depends on how you use and maintain it. If you misuse it, it can last you only 5 years. But, if you use it properly and maintain it regularly, it can even last until 15 years.

The right water heater for you depends on your preference. You can choose one based on its size, features, how convenient it is, it’s practicality, and more. If you have a large family, you might need a water heater that can provide hot water constantly. You might also want one that’s durable and quick if you have a busy lifestyle.

Yes, tankless water can save you a lot of energy. While most of the water heaters operate day and night to keep the stored water hot, tankless water heaters deliver instant hot water on-demand because they only operate when you need it and hibernate when not in use.

Conclusion

There you go! These are the 10 best water heaters for residential use that you can find on the market today. These models deliver instant hot water and come with much variety. All of the products have high-class materials and perform well regardless of which you choose to buy. So, are you going to buy a water heater suitable for you? What sort of water heater do you think might work best for your lifestyle? Let us know! 

In Hurry? Editor's Choice
Rinnai RUC98iN Ultra Series