Best 20 Gallon Hot Water Heaters 2023 (Top 5 Models Reviewed)

20 gallon water heater, mobile home water heater

The residential electric water heaters are a common presence in homes all across the nation. Also the 20 gallon hot water heaters have become popular choices for many mobile homeowners. 

If you plan to buy a 20 gallon electric water heater for a mobile home or dwellings, it is wise to check your circuit voltage. Generally, mobile homes have 120 voltage circuits, so you have to look for the 20 gallon water heater that will work with 120 volt service. 

Before making your final purchase, you can consult with a water heater buyer’s guide, which is mentioned below. 

Nowadays, waters heaters are available with the new advanced technology with different capacities. You can choose from 20 gallons to 100-gallon water heaters as per your hot water need.

For a small family, 20 gallons is enough for daily personal uses, higher the capacity wastage of electricity.

In this buying guide, you will find a detailed description of the best selected 20 gallon hot water heaters along with pros and cons for housing, mobile homes, and RVs.

Quick Comparison Table

20 Gallon Electric Water Heater For Mobile Home
Reliance 6-20-SOMS

  • Size: 20"x18.8"x33.5"
  • Capacity: 20 gallon
  • Weight: 68 lbs
  • Voltage: 120 volt
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Blendtec Total Classic Original
Rheem Performance 20 gal

  • Size: 15"x15"x30"
  • Capacity: 20 gallon
  • Weight: 66 lbs
  • Voltage: 120 volt
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0 Gallon Electric Hot Water Heaters For Mobile Home
Raritan 20-Gallon

  • Size: 22"x22"x28"
  • Capacity: 20 gallon
  • Weight: 65 lbs
  • Voltage: 120 volt
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0 Gallon Electric Hot Water Heaters For Mobile Home
American Standard CE-20 19-Gal

  • Size: 18.5"x18.5"x24.88"
  • Capacity: 19 gallon
  • Weight: 73.6 lbs
  • Voltage: 120 volt
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20 Gallon Electric Hot Water Heaters For Mobile Home
Ariston 20-Gallon

  • Size: 29"x22"x21"
  • Capacity: 20 gallon
  • Weight: 77.8 lbs
  • Voltage: 120 volt
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List Of 20 Gallon Electric Water Heater For Mobile Homes and Dwellings

Whether you are about to purchase a new water heater for your hot water needs? Following are the top-rated, compact and high efficient units recommended for 110-volt residential dwellings and mobile homes.

1. Reliance 6-20-SOMS K - 20 Gallon Water Heater


Reliance 6-20-SOMS K is top rated 20 gallon hot water heater an ideal choice for anyone who needs to keep the water in the house hot, even in cold weather conditions.

It is powered by a single 120 V outlet, which makes it perfect for mobile homeowners. Its advanced heating feature will keep your bill under your pocket.

The best part is that this item comes with a six-year tank warranty and six-year parts warranty that covers replacement costs and repair costs for any problems related to the unit.

Another great advantage of the appliance is that it comes with an automatic shut-off feature that automatically shuts down the heater after being used for a certain period.

Reliance has provided a detailed list of its advantages and disadvantages with regards to this product. You should check these carefully before purchasing the product.


2. Rheem Performance 20 Gallon Water Heater


Rheem is the leading manufacturer of high quality, affordable water heaters. Rheem provide efficient heating solutions for both residential and commercial applications.

The Rheem Performance 20 gallon hot water heater remains a solid option for anyone who is looking for a high-quality, reliable, efficient, and durable water heating system. 

It has 2000-watt heating element that needs 120 volts electrical supply and has built-in pressure and temperature relief valve.

It is space saving device and can be mounted over a wall easily and ideal for small size home and rheem offers 6-year tank as well as parts warranty, which is great.


3. Raritan 20 Gallon Water Heater - 110 Volt


The Raritan 20 gallon is the cylindrical design 120-volt water heater designed with the dense foam insulation material responsible for reducing heat loss.

The internal part of the tank is covered with a glass line, which gives long life and high efficiency.The thermostat is adjustable, overheat protected, and ignition protected, which ensures the safety of the individuals.

The replaceable anode is made up of magnesium which helps to reduce the acids available in the water and protects the tank from corrosion.

The company claims that each device is assembled by hand and individually tested by human beings and provides a five-year limited warranty.


4. American Standaard CE 20 Gallon Water Heater


American Standard’s new CE-20 water heater specification is a point-of-use unit designed to improve performance and efficiency.

The CE-20 is a 19-gallon water heater embedded with 15000-watt heating elements that work on 110 volts power supply, perfect for the mobile home.

Its tank is built with a heavy steel body, and the inner sphere is made of Dura Glass that can handle the high temperature.

You don’t have to wait for hot water to come on when using this model. This unit can make hot water available even if there is an icy atmosphere.

It comes with a draining valve made up of brass which helps to reduce the hard water minerals and sediments that avoid clogging and increase the water heater’s lifespan.

If you are looking for a dependable model that is easy to install, the American standard Ce-20 water heater is the right choice. There is only a 1-gallon difference in capacity between this unit and other 20 gallon hot water heaters. This unit comes with an easy-to-follow installation guide that will help you install it without any problems.


5. Ariston 20 Gallon Electric Water Heater


Ariston is one of the oldest heating product manufacturers; they have been producing water heaters since 1960 across the globe.
Their products are durable with high output and trustworthy.

The Ariston 20-gallon water heater is the best choice for home use and can be adjusted easily due to its small design. Its tank is made-up of heavy steel material with a glass-lined heavy gauge which provides additional resistance to high temperatures.

It is easy to install, requiring only a 12.5-ampere circuit and 120 volts of power supply. The working output of a water heater is 1500 watts.


A Buyer's Guide For 20 Gallon Hot Water Heaters

There are many things to consider before buying a tank heater for your mobile home. However, you should consider a few points carefully before purchasing 20 gallon hot water heater for mobile home and housing.

First of all, you must determine your requirements and set your budget. Then you must search for the best water heater that meets your needs and budget. Check out the below points;

Capacity: One of the most important decisions you have to make is the hot water capacity of the heater system. You must purchase a water heater that can heat the amount of water that you need. It would be best if you decided based on your family members and daily uses.

Voltage: That’s another essential factor you must know before purchase. By mistake, many of us order high voltage water heaters though the home service is low voltage, which will create trouble.

So you should first check the voltage supply of your mobile home; after that, you go with the same specification device.

Size: Another thing is the size of the water heater. Understanding the unit’s dimensions as your open space is essential because mobile homes already have insufficient room to fit the device.

If the tank is too large, it will consume more energy. Thus, the electricity bill will be higher. You must make sure that the size of the water heater is appropriate to the size of the tank that you have purchased. If the size of the tank is larger than required, it will take up too much room in the garage.

Cost: The next thing to consider before buying is the cost of the product. The more features you have in the water system, the more you will have to pay for it. So, if you calculate all these factors, it will not be hard for you to decide.

You also have to consider the cost of maintaining the water heater. It’s important because you may have to spend a lot on its maintenance if you use it for a long time. In addition to this, there may be some parts of the equipment that wears out very fast. Therefore, if you want to save on your maintenance expenses, buying a brand new water heater would be best.

Warranty: When purchasing 20 gallon hot water heater, you should check the warranty of that unit. There are different types of warranties available for these products. When considering this factor, it is important to see that you purchase a service contract covering repair and replacement costs for the period specified by the warranty.

Some manufacturers stipulate that you have to use only their approved service center for the warranty period. Thus, you may not be able to use other service centers that may not have the manufacturer’s approval.

Final Words

Finding the perfect heating system for a mobile home is quite difficult. There are many devices available from different brands. We have selected the best available 20 gallon hot water heaters based on user reviews and features.

Moreover, read the specifications and features of the unit before purchase. It would be better to take the help of the installation manual and a plumber to install the device. Let us know for any questions if you have.

Frequently Asked Questions

There are many differences between a mobile home water heater and a regular water heater. Some of them are the following; 

  1. Mobile home water heater meets HUD standards for safety and energy efficiency. You will see a HUD approval sticker on the mobile home water heater. 
  2. Mobile home water heaters have a non-adjustable temperature and a pressure relief valve.
  3. Mobile home water heaters have a corrosion-resistant catch pan on the bottom and an external drain valve.
  4. Most mobile home manufacturers use a 110-120 volt circuit, so mobile home water heaters operate with 110-120 voltage.

A mobile home water heater cost approximately $600 to $1000 with the installation cost of the plumber. The cost also depends on the water heater brand and size.

The size and capacity of the water heater are based on your hot water needs. A 20-30 gallon water heater is enough for the regular use of two to three family members.

Typically 110-120 volt water heaters are best suited for mobile homes.

The Reliance 6-20-SOMS K is the best and top-rated 20 gallon hot water heater that works with a 120 voltage supply. It is a perfect heating unit for your mobile home.

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