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Keep Your Water Hot With The Best Water Heater

One of the things that define a civilized society is its supply of clean, potable water. In the United States, we use more water than any other nation, and we use it in more ways than any other nation. Heating water for bathing is almost unheard of in most countries, so remember not to take this for granted the next time you bathe.

The energy used to heat enough water for a typical family of four accounts for up to 30 percent of the average home's energy budget. Deciding what type of energy used to heat your water, and what mode of heating you chose, is very important as it will play a very large role in your day to day life.

There are only a few sources of energy used here, namely electric, gas, oil, and solar. Depending on where you live and how much hot water you consume, these things will dictate how to store your hot water, and what style of hot water heater you should use.

You can have the traditional hot water tank that holds 30 to 80 gallons of water, maintained at a constant temperature, ready to use when you need it. Or you may opt for the newer tankless hot water heater that runs water through a heating element it as you need it. This is far more energy efficient than traditional tanks as it only uses energy when you make a draw on the water. Since the tankless hot water heaters don’t have to maintain a hot water tank, when not in use, tankless hot water heaters will consume no energy at all.

If you live in a very sunny area of the country, you might opt for a solar hot water heating system that is a combination of both. Insulated tubing sits on the roof of your home, being heated by the sun. Once it reaches a certain temperature, it is then pumped down to a tank that will store this hot water ready for use. Because these solar panels sit in the sun all day, they are also generating enough electrical energy to circulate the water, and run the pumps that allow it all to function. If your conditions are right, these can be a very good source of hot water all year long.

Learning all you can about hot water heaters, and discovering the list of the best water heaters in 2021 and all the choices you have is a great way to help make this decision. Please consider, whatever you purchase, you will probably live with it for the next 30 years, or more.

Best Water Heater Worth Considering in 2021

EcoSmart Eco 11

Say goodbye to your worries about having the wrong water heater when you have our toppicked product, the EcoSmart ECO 11 electric tankless water heater, equipped in your home. The amazingly built water heater comes with a patented self modulating technology which is the current best in the market. The confidence of the company in this product is made evident by the lifetime warranty that they offer to their customers.

  • Small size
  • Lifetime warranty
  • Energy efficient
  • Needs a 60 AMP breaker

The performance remains consistent even after years, with a constant supply of hot water for any use, whether it is for doing the dishes, bathing in the shower, or doing laundry. The ECOSMART tankless water heater has 99.8% energy efficiency and claims to save up to 60% on your water heating costs alone. So, any household in need of a single or multiple water heaters is bound to save a lot in the long term by using this product.

With a warranty of a lifetime, the water heater is sure to end up paying for itself by just the savings you make with it! The most common complaint with good, old water heaters is the space they take. ECO 11 by EcoSmart knocks this complaint out of the park with dimensions that compare to the size of a shoebox (11.5" x 8" x 3.75"). All in all, it is the most convenient choice if you have space concerns at your home.

With its amazing patented technology, a single unit is capable of multi-tasking and can accommodate 2 showers at the same time. As for its heating abilities, even in the coldest temperatures ECO 11 quickly (within a minute) and efficiently supplies hot water and is able to maintain the flow of water without fluctuations in the water supply's quantity or temperature. The device works with 13KW at 220 Volts and needs a breaker of 60 Amp- so do make sure that you have the needed electrical installations.

Rinnai Tankless Gas Water Heater

V65iN will provide to any user both, value and ease of use, and it is the most simple, yet efficient, water heater among natural gas tankless water heaters. If you have a small to medium sized household, Rinnai’s V65iN easily wins over its counterparts because of its compact and portable size and due to it being extremely easy to install with years of working without any complaints. Every indoor household need of yours will be fulfilled by this device so sit back and relax in peace when you have this gem of a product equipped in your home.

  • Includes a natural gas Leak detection alarm
  • Can be monitored or run through an app
  • Limited energy efficiency

Rinnai V65iN is made small in size so it frees up a lot of space compared to tanks and other water heaters. It can easily run up to two showers simultaneously, so a single unit alone caters to a small family. Installing this device without help, however, is no easy task so it is recommended to hire an expert for the installation process.

You are probably concerned about what the water pressure and flow of such a portable and natural gas based device would be. Well, at maximum capacity, the V65iN can offer 6.5 GPM flow rate of hot water so all the faucets connected to the device get hot water with constant flow when used.

Another standout feature of this model is its native app, the Control-R 2.0, through which not only can you set timers and schedules, but also remotely put your device on ‘vacation mode’. All these features, maybe except the application, come with a warranty of 120 months, with 60 months for parts, and 12 months for labor.

However, you need not worry about the time limit since most customers report it functioning well even after 4-5 years. It is important to follow the maintenance guidelines for this model if you want it to work for years without any inconvenience but rest assured, it is one of the very few models that have almost no issues after installation.

best electric water tank

Westinghouse 80 Gal. Electric Water Tank

The Westinghouse 80 Gal. has the word, lifetime, in it because that's how long it aims to fulfill your needs; a lifetime. The laser welded stainless steel tank is durable and designed to prevent corrosion. It is also adequately insulated. This means that water temperatures would remain high without drawing on a lot of power and hence, saving you some bucks.

  • Durable design
  • Lifetime warranty
  • Great price-to-performance ratio
  • Requires a licensed plumber to install

We talked about temperature, so let's not forget about the great temperature control that this water heater boasts. The lightweight tank also has outlets on the top and the sides which makes for some convenient usage and installation. We must say, however, that installation must be done by a licensed plumber. Westinghouse will only cater to the lifetime warranty terms if the heater is installed by a professional.

Did we also mention how this unit is one of the cheapest water heaters that you can buy right now? The one quarter turn drain valve is a nice touch on the device especially when it is stacked against other units of the same price point that are usually equipped with cheap plastic valves. Another way the Westinghouse 80 Gal tank sets itself apart from the competition by offering a first hour hot water supply of 84 gallons. That's more than what most premium models are able to manage!

On the flip side, it is important that we talk about the heating elements of the heater. Due to the absence of sacrificial elements in the water heater, the heating elements act as sacrificial elements and are prone to get destroyed pretty quickly.

Bosch Electric Tankless Water Heater

The Bosch 3000 T 7-Gallon ES8 is one of the larger models in our list but if a smaller size is what you need, you can always opt for 2.5 and 4 gallon options. Despite it being larger in size, the water heater still comes in a close and compact design that is easy to install without taking up much space. Also, did we mention how you may integrate the device with your existing home décor since ES8 looks sleek and stylish?

  • Sleek design
  • Quick heating
  • Plastic connections

When it comes to functionality, ES8 is second to none. It heats water very quickly and is able to maintain the temperature of the water supply. Its ability to provide hot water at the instant is something that cannot be said about most other electric water heaters. The surprising heat keeping ability (due to the CFC- free foam insulation) ensures that the appliance does not have to keep using power and that helps save electricity consumption too. What results is savings on your bill where most other 7-gallon water heaters are prone to do the exact opposite.

The sleek design that we spoke of earlier also lets you fit it inside a cabinet! So when it comes to water heaters for small facilities (such as below sink cabinets or for recreational vehicles) Bosch 3000 T 7-Gallon ES8 is a no brainer. The appliance is lined with glass, making it durable so you don’t have to worry about breakage. It also has 6 years of warranty accompanied by 2 years for parts. ES8 also has impressive water pressure and a temperature range of 150 psi and 65-145°F, respectively.

best water heaters

A.O. Smith Signature 40-Gallon Water Heater

A.O. Smith's Signature 40-Gallon Electric Water Heater is made to provide a reliable hot water supply to any household with 2-3 persons without breaking a sweat. The tank is admittedly large in size but comes with a slim profile (61.25-in height x 18-in diameter) and has a shield which is ceramic infused so its protection is not your concern anymore.

  • Quick supply re-fill
  • High efficiency
  • Not compact

The fine design for such a large appliance will also make installation convenient. If you are also concerned about the cleaning and sediment build up, we have good news for you; this tank has a specially designed self-cleaning dip tube for automated cleaning. So, 6 years of warranty on this device is no surprise to us.

The water heater guarantees energy efficiency and savings by operating at a 0.92 Uniform Energy Factor (UEF) with Non-CFC polyurethane foam insulation and heat trap nipples (which are factory installed so another burden off your shoulder) for heat loss reduction.

Out of all things, the heater's flexibility is what truly makes it remarkable. Adjustable thermostat and easy temperature control mean that you can easily and quickly vary the temperature depending upon your use. Whether it is water for the laundry, shower, dish washer, or any household chore, the A. O. Smith's Signature 40-Gallon Electric Water has got your back. The device is safe, consistent, and efficient, an option you should definitely consider for long term use.

best water heater

A.O. Smith Signature 40-Gallon Water Heater

Another model from the same company might look redundant to you. Well, trust us here because these models have given other products strong competition. A. O. Smith's Signature Natural Gas Water Heater is a variant of the first, and this one comfortably accommodates a family of 3-4 people.

  • LED status display
  • Great safety features
  • Wide because of is compactness

The short model can deliver 67 gallons within the first hour and has similar features for automated cleaning and ultimate protection, extending the water heater’s life. The size on this one is compact, 51.5-in height x 22-in diameter, and that has its own advantages. The variant is suitable for condensed places such as closet installations and empty spaces under staircases, with an easy installation process.

If you're looking for additional features to justify buying a new model, let us tell you about the customer favorite feature on this bad boy. The status display on the tank is what you have been missing out on- the self diagnostic electronic gas control includes an LED display that also monitors and reports system operations and status.

With all these features, the company did not forget to address the pivotal concern which is your safety. With built-in fireproof features, the tank decreases the risk of flammable vapor ignitions. As if the appliance is not already stacked with high end impressive specifics, it is integrated with the 40,000 BTU Low NOx gas burner, making it environmentally friendly too. Talk about checking all the boxes with this one!

Buyer's Guide

Best Water Heater Buying Guide

The water heater is essential in every house that depends on clean hot waters for showers, laundry, and dishwashing. Like most essential home equipment, they can be pricey, and that is why you should only purchase the best water heater you can afford.

A lot goes into finding a great water heater. Without adequate knowledge about your potential options, and specific needs, you could purchase the wrong water heater. Luckily, we cover that and so much more in this guide.

Factors you should consider when choosing a Water heater?

There are a handful of factors you should consider before settling on a water heater for your home.

Water capacity


You need to consider how many liters of water your family uses on a busy water day. The more water they consume, the more gallons of water you usually need. For example, if you use about 100 gallons on a busy day, you will need a water heater with a capacity north of 40 gallons (this only applies to storage water tanks.)

However, you should note that the water capacity of a tank is not always an indicator of the volume it can provide. For example, Tankless water heaters don't hold much water, so the volume they can provide is calculated by how many gallons they can provide in a minute (GPM). Higher GPM water heaters are typically better for bigger families, lower ones for an individual or couple.

Cost of Use


Nearly all water heaters rely on either electricity or gas, and you will have to deal with the cost long-term. Electric heaters use electricity to heat the water and maintain a steady temperature. They are usually cheaper up front, but they bump up your electric bill quite a bit. In contrast, gas water heaters cost more upfront, but they are cheaper to fuel. You will have to consider which power source your home is better suited to use and decide on a heater based on that.

Space for set-up

Water heaters typically don't have a uniform size. While most might think that the overall size of the heater is dependent on the capacity, it's more likely because of the new technology newer models have. So, if you are replacing your current heater with a newer one, you might need more or less space.

What Extra Features Should You Consider?

There are a few extra features you should also look at while you are still shopping. These features can sometimes influence your overall experience with the water heater. You should check for:

A warranty


Warranty coverages might sound like an extra way to squeeze money out of you on checkout, but for water heater’s it’s sometimes worth checking out. Customers opt for different lengths of warranties and enjoy unique features guaranteed to increase the tank’s longevity.

Glass-lined tanks


Corrosion is one of the biggest threats your water heater faces in its later years of operation. Glass lining the tanks will ensure your water tank won’t rust too quickly.

Digital Displays


Digital displays give you absolute control over your unit and provide you with all the information you might need. It displays the level of the tank, water collectors, pressure, etc. The display also comes programmed with software that helps you save power and optimize performance.

What are the Types of Water Heater you can buy?

There are five popular types of water heaters used in homes. The types of water heaters differ in their use and performance. They are typically built for a specific customer base and have features that reflect that.

Storage Tank Water Heaters

Storage tank water heaters are the most common type of water heater available on the market. They have large insulated water where they store water as it is heated by either gas or electricity.

They all typically come with a temperature and pressure relief valve that is triggered when a set temperature and pressure are reached.

Tankless Water Heaters

Tankless water heaters the water heaters that do not store water but rather supply and heat when it's needed. As you might have guessed, they are more energy-efficient than standard storage-tank water heaters, but they have a limitation- an upper flow limit. The average tankless water heater can provide up to 3.5 gallons of water, depending on the inlet water temperatures.

They are better for homeowners who use gas to heat water, as electricity-powered water heaters won't be as efficient.

Heat pump or Hybrid Water heaters

This type of water heater is powered by the heat in the air as well as electricity. It uses up to 60% less electricity than electric-only water heaters. They are, however more costly, and do not work well in cold spaces. The ideal set-up space should have temperatures that range between 40 to 90 degrees Fahrenheit and about 7 feet of uncooled space.

Solar water heater

Solar water heaters heat the water tank with heat energy transferred from the sun. It is a relatively new water heater system with an enormous future cost-saving potential. However, because it's so unpopular, the entire system is still very difficult to buy and install.

Condensing water heater


Condensing water heaters are a relatively uncommon water heater that uses captured exhaust gas to heat its water. It's very similar to a standard gas heater, except it takes the gas that comes out of the flue. The heat is typically routed through a coil and up to the base of the water tank.

Water Heater FAQ

Here are quick answers to some of the questions you might still have about water heaters.

How long do water heaters last?

A good water heater should reliably heat your water for upwards of 6- 11 years. If you don't have special features or a warranty, replace it after ten years to be safe.

How often should you flush your water heater?

You should flush your water heater at least once every year. Doing so will help you clear up sediments and prevent future faults.

What are the signs that my old water heater is going bad?

The first sign of trouble is decreased performance, then water leakage, or something else. Get a professional to look at your tank to ensure everything is working as it should.

Bestcovery Staff
Our research team searches out the best of everything so that you can confidently pick the perfect products and services for your needs.
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