In case you don’t have time to go through the whole article, and just want to know what the best water heater is, then our recommendation is the American Standard CE-20-AS.

For many households, the cost of heating water takes almost 20% of their budget, coming second to only what is spent on heating and cooling the house. Despite this cost, water heaters are generally ignored until the day they break down, leaving you with no hot water and a possible situation of a flooded basement.

What is a Water Heater?

One of the joys of modernization is the ability to turn your tap on and find hot water flowing forth. The availability of hot water in the household makes cleaning of the dishes, laundry, and our bodies a much easier task. It is without a doubt that the modern way of water heating is far superior to the traditional method of heating water on a stove or over a fire.

Few people can tolerate taking cold showers every day or the high energy costs associated with heating water. Although we do not think about them very much, water heaters are the handy devices that work behind the scenes to ensure you get hot water flowing through your pipes.

The right water heater should provide you and your family with a cost-effective and reliable hot solution. Combine it with some essential oils and enjoy a relaxing hot bath!

A Quick View of Our Rating

Our #1 rated – American Standard CE-20-AS

Our #2 rated – Reliance 6 6 SOMS K

Our #3 rated – Ariston GL6+S

Our #4 rated – Bradford White 40

Our #5 rated – A.O. Smith GCR-40 ProMax

Best Water Heater Buying Guide

Whether you are tired of taking your unwelcomed cold showers or simply wish to reduce your power bill, buying a new water heater can be a daunting task. However, we have compiled a few steps for you to consider before undertaking this nerve-racking shopping experience.

Identify the Source of Fuel

Before settling on a water heater, it is prudent first to determine the source of fuel that exists in your home. Once you know the fuel source, it will be easier for you to select a water heater that fits your expectations. Your water heater can either be electric, gas/propane, solar, or geothermal.

Electric Water Heaters

They remain to be the most popular water heater option for many since electricity is available in almost all households. Most electric heaters use household currents and are connected to dedicated circuits to ensure extra electrical loads do not trip your circuit breaker, leaving you cold and in the dark. Despite their popularity, an electric heater is an expensive option, depending on your location’s electricity tariffs, heater capacity, and the type of tank system you have.

Gas/Propane Water Heaters

They have the lowest energy consumption cost in the market, and they operate by heating a tank full of standing water with a gas-fired burner. Gas water heaters use the same principle as electric water heaters, only that your source of fuel happens to be your home’s gas supply system. They have two ignition types, the standing pilot light, and electronic ignition. The standing pilot light consumes gas continually regardless of if the burner is lit, while the electronic ignition offers a more energy-efficient alternative.

Gas water heaters are not as popular as other heaters due to design complications such as fire safety and venting. Also, many areas do not have gas services, and installing gas holding tanks is not a good idea in consideration of your household safety.

Solar Water Heaters

Solar-powered heaters are becoming popular options to many thanks to their advanced and inexpensive solar technology attributes. Although they capture a tiny market share, solar-powered water heaters offer you a significant return in terms of energy investment, reducing the cost of energy substantially. Solar heaters are the best option for people who reside in high-sun areas such as the Southwest of USA, where they experience long periods of direct sunlight.

Geothermal Water Heaters

Geothermal heaters are known to tap into natural energy sources such as water, or heat from the ground or air. They offer the best return on investment over a long period. One of their disadvantages is that they lose effectiveness quickly when temperatures drop towards low levels.

Type of Water Heaters

When purchasing a water heater, it is prudent to consider the size of your family and the utilities in your home. It is essential to keep the following things in mind:

Storage Tank Water Heaters

They are the most common and available water heaters on the market, ranging in storage capacity of about 20 to 80 gallons. It works by heating water entering the storage tank by either electricity or gas.

The water in the tank stays hot or warm until it is needed. One of their advantages is that they are the least expensive types of heaters that operate faithfully with little or no maintenance. However, the water stored in the tank quickly loses its hotness and must be reheated continually to ensure the water reaches a set temperature. This can lead to energy wastage.

On-demand Water Heaters

Also known as tank-less water heaters, they provide users with instant hot water without the need for a storage facility. When you turn on a hot water tap, cold water flows into the on-demand unit, gets heated to a set temperature, then it is distributed to wherever it is needed. On-demand heaters come in various sizes and can serve different households depending on their size. When compared to storage tank heaters, on-demand units are more energy-efficient while ensuring you do not run out of hot water.

Hybrid Heat Pump Water Heater

They take heat from the ambient air and use it to heat the water inside the storage facility.

Solar Water Heaters

These heaters are usually visible on the roofs of their owners. Heat captured from the sunlight warms the cold water that is circulated inside the box using tubes. Solar water heaters have a thermostatic control that prevents water from flowing during low temperatures. Since sunlight is a free and clean power source, solar heaters are the best heaters to set up in your homes.

The Capacity of the Water Heater

The water heater capacity mostly refers to storage tank water heaters. The water volume capacity of the heater varies according to the size of the tank. Small water tanks hold about 30 to 40 gallons of water, while mid-sized tanks have a holding capacity of about 50 to 60 gallons. Large storage tanks can carry up to 100 gallons.

Water volume capacity is not the only criterion for gauging the hot water capacity. It is the tank’s first-hour rating (FHR) that genuinely measures the hot water capacity. FHR measures how many gallons of hot water can be supplied per hour, starting with a tank full of hot water.

Measure Your Space

One of the most common mistakes many people do when purchasing a water heater is their disregarding the amount of available space in their homes. Water heaters are technological appliances that are continually being improved, knowing the measurement of your area is vital.

What is Best Water Heater?

Reliance 6 6 SOMS K

For anyone looking for a portable water heater, this one can be an ideal option. This heater is excellent for one-bedroom apartments that have a small cabin or a single shower.

They are available in three categories: point-of-use, mobile home, and compact. With overall measurements of 15 ¼-inches height by 14-inches width by 14-inches depth, this unit is perfect for under-counter or crawls space installation.

Some homeowners use this 6-gallon heater as a secondary device. It runs on standard house 120 volts, with the heating element using a maximum of 1650 watts to function. The tank is outfitted with two-inch foam insulation for better efficiency. Its glass-lined tank is also anti-corrosion and does not rust.

When it comes to installation, this heater is not a plug and play item, but its installation is still relatively easy. The heater has a cold-water inlet and a hot water outlet that is located on the side of the appliance.


  • Durable and versatile
  • Value for money
  • Corrosion-resistant
  • Easy to maintain


  • Limited capacity

——–Check Price——–

Ariston GL6+S

This is a tank-less water heater that eradicates the wait time for hot water to flow from your tap. You can install this heater in-line or independently with an enormous water-heating source.

It only requires a standard outlet to power it. They have a glass-lined tank that ensures durability, and its insulation is superior to any other mini water heater.

This model weighs around 30 pounds and measures 17-inches by 17-inches. After purchasing this device, you are liable to a 6-year warranty policy on the heat exchanger and a 1-year warranty for parts.


  • Lightweight and functional aesthetics
  • Easy installation
  • Instant hot water
  • Versatile in deployment


  • Inaccurate controls
  • Leaks easily

——–Check Price——–

American Standard CE-20-AS

This is an electric water heater that assumes a small stature, but it sure is powerful. A majority of people who have used this heater love the fact that it warms water incredibly fast without using tons of energy.

Weighing at around 60 pounds, its super-strong water tank is an excellent option for storing under cabinets, sinks, and small closets.

Despite its small stature, this heater can heat water just like an old-fashion full-sized tank. This model is an excellent option for homes and people who require heated water but cannot accommodate long and hot water pipes. The tank can withstand the threat of corrosion thanks to its glass fired design.


  • Brass temperature/pressure relief valve
  • Factory-tested
  • Lined with glass
  • Easy draining
  • Easy to install


  • Pressure valve drips easily
  • Poor packaging

——–Check Price——–

A.O. Smith GCR-40 ProMax

This water heater comes with a 40-gallon tank that makes it a perfect gas water heater for residential use. It is a standard and reliable brand that meets all the primary criteria of the National Appliance Energy Conservation Act (NAECA).

The brand’s measurements are 22-inches by 58.5-inches, and it weighs about 165 pounds. It has a BTU of 36000, standing out as one of the best and most efficient gas water heaters on the market today. The heating system has an internal microprocessor that aids its accurate heating response and its optimum sensing.

This unit also uses Dynaclean diffuser dip tubes that aid in dealing with sediment buildup and limes inside the tank. Its blue diamond glass insulation provides the necessary resistance to rust and corrosion, making it one of the most durable heaters on the market.


  • 6-year warranty
  • No need for external power
  • LED display option


  • Some users gave its burner plate low ratings

——–Check Price——–

Bradford White 40

If you are looking for a 40-gallon water heater, this model should be on top of your list. This water heater is suitable for homeowners. It measures 60.5-inches height by 20-inches round, and it is relatively affordable when compared to other heaters.

It uses an intelligent gas controlling technology known as the ICON system. When using this heater, you do not need external power to work, as it uses a thermopile to convert heat energy to electric energy.

At present, it has the most progressive temperature control system on the market thanks to its microprocessor’s constant control of the burner operations.

Its advanced Screenlok Technology Flame Arrestor design makes this brand one of the safest gas water heaters around.


  • Free maintenance
  • No need to drain the tank when you want to remove the gas
  • Smart and safe gas water heater


  • Not suitable for medium and large households

——–Check Price——–

Our Choice

The appliances mentioned above are some of the best water heaters on the market today, and they can offer you excellent service for a long time. They come in different volumes, making life easier for you when looking for a water heater that fits your needs.

Besides being portable, water heaters are also made to stand the test of time thanks to its high quality and durable construction. With one of these water heaters, you shall not run out of hot water due to their quick and efficient water heating capabilities.

But when it comes to our choice the winner is American Standard CE-20-AS. It is small, but it warms water incredibly fast without using tons of energy. On top of that, its tank is glass fired to avoid corrosion, and it is super easy to install.