Best 110v Tankless Water Heater

 The emergence of the 110-Volt tankless water heater has allowed homeowners from all walks of life to have an efficient and affordable hot-water heating solution without the headaches of large-scale water heaters.

Best 110v Tankless Water Heater

The 110-Volt heater is a popular choice because it does not require a lot of additions to make work within your home. The lower voltage allows you to install your water heater on a traditional plug you most likely already have in your home, rather than a 240-Volt plug that can be expensive to install and usually requires a plumber.

There are dozens of quality 110-Volt tankless water heaters available on the market and choosing the best one can feel like a daunting task. There are numerous things you must consider when choosing the best 110-Volt tankless water heater for you.

Things like climate and groundwater temperature will be a huge factor when comparing models, but fear not, we are here to help point you in the proper direction. Throughout this article, you will see a breakdown of our top-5 favorite 110-Volt water heaters along with a buying guide that will help you determine which water heater is right for you.

Types of 110v Tankless Water Heaters

There are several different types of 110-Volt tankless water heaters that you can choose from. When reading this list, keep in mind that 110-Volt options are typically built for less water usage than a whole-home system, and the types of water heaters reflect that.


The most popular type of 110-Volt tankless water heater is the single-sink model. These are designed to be installed into a lone water line and provide hot water for a single sink or faucet.


Often, these are good options for people looking to add a hot water option to an outdoor space or sometimes a mobile home or cabin that is not on the grid. Do not let the single-sink terminology fool you; they provide piping hot water and can typically handle a few sinks at once if you desire.

These will usually have a flow rate of 0.5 GPM, which is plenty for cooking, cleaning, or just washing hands at a campsite.


One of the newest options on the market is the water heating showerhead. They require just 110-Volts, and rather than a plug, they are designed to be installed directly to a breaker for safety reasons. The reason these are becoming popular is due to the huge increase in outdoor activities and camping across the globe.


Many cabins and mountain homes do not have access to a whole-home water heater and will typically require some sort of heating contraption for shower water. Since most other hot water requirements can be done by other means like wood stoves and fire, the only real need for a water heater in the shower and showerhead tankless water heaters are an affordable and efficient solution to your off-the-grid needs.

Best 110v Tankless Water Heater Reviews

1. Vinmax Hot 110V Tankless Water Heater

Vinmax Hot 110V

The vinmax tankless water heater is a simple, straightforward tankless water heater that delivers hot water promptly.

First off, you will notice how compact and small this tankless water heater is. It weighs less than 10 pounds and is smaller than most carry-on suitcases, which makes it an extremely adaptable tankless water heater.

It will fit easily under most cabinets or vanities and will provide enough water to handle a single shower and a sink at the same time.

The 110-Volt plug has a long cord attached to it that works in most situations, and you will not have to worry about setting your system directly next to an outlet.

The reason why so many folks are on the lookout for the best 110-Volt tankless water heater is that the lower voltage is easier to install at any outlet in your home.

Larger and more powerful tankless water heaters require a 220-Volt or higher outlet that can cause added installation costs. The vinmax’s features make the installation easy as it can be if you are looking for a mobile water heater solution.

Additional Specification

  • Ideal For: Kitchen Household
  • Rated Power: 1500W
  • Temperature: 55℃– 75℃
  • Item Weight: 7.48 pounds
  • Key Features: 1x Body of Water Heater

Why We Love It

  • This tankless system is very light and mobile; you could bring hot water with you!
  • The temperature setup dial is basic, but it is very easy to use and read.
  • This unit is smaller than most suitcases, which makes it easy to install wherever you would like.
  • Many 110-Volt tankless water heaters come with short chords, but this chord is plenty long, which makes it simple to install.

Keep In Mind

The water inlet and outlet valves are made from plastic, which is a concern about durability.

2. Atmor AT-900-03 Tankless Electric Water Heater

 Atmor AT-900-03

This highly unique 11-Volt tankless water heater is a great deal if you are looking for an affordable and effective small home water heating source. It is designed to work with a single sink and is ultra-light and portable, making it a great option for campers, RVs, and those of you who are on the go.

Instead of the standard 110-Volt plug that many models use, this unit requires a dedicated 30-Amp breaker to power itself. This requires a plumber to install the unit, but you will be glad you did when the unit starts pumping out endless hot water.

It has a maximum flow rate of 0.5 GPM, which is plenty when you consider that this is designed to work with a single sink.

It comes with several added features that make it more efficient and an overall safer product. The included pressure relief valve is not cheaply made and is effective and ensuring there is never going to be a surge in pressure. It comes with an aerator that attaches to your faucet to keep the water pressure stable, too!

Additional Specification

  • Ideal For: Residential & Commercial use
  • Rated Power: 3000W
  • Temperature: 45°F
  • Item Weight: ‎4.6 pounds
  • Key Features: 0.5 GMP Sink Aerator

Why We Love It

  • The included pressure relief valve is well-constructed and does its job well.
  • It comes with a sink aerator that helps with water flow and the maximum flow rate.
  • The water canister is made from plastic and glass fiber that helps combat water scaling.
  • There is an internal thermostat that helps protect against over-heating.

Keep In Mind

This system will not work in cold climates where the groundwater temperature is less than 57 degrees Fahrenheit.

3. Mini 110V 3400W Tankless Instant Hot Water System

 Mini 110V 3400W

This book-sized tankless water heater is a fan favorite for numerous reasons. First off, the price tag is just right for most people, it comes in at less than $100! This is a rarity in the water heating world, regardless of how much water the machine can produce. The other glaring feature is the size of the unit.

When we received the box, we were confident that the tiny box we have could not contain a water heater, but boy was we wrong. This unit is a little different as it installs into the water line directly and then plugs into any standard 110-Volt outlet.

The unit is roughly the size of a standard book and weighs about the same too. The number of different places around the house where you could fit this unit is endless.

It was by far the easiest 110-Volt water heater that we have reviewed thus far, and that made installation extremely easy. The temperature will be dictated by the water flow rate in your home.
The slower the flow, the hotter the water. You can adjust the flow rate in multiple ways to make this 110-Volt tankless water heater perfect for you.

Additional Specification

  • Ideal For: Bathroom Kitchen
  • Rated Power: 3400W
  • Brand: Tnfeeon
  • Item Weight: ‎2.54 Pounds
  • Key Features: Golden Color

Why We Love It

  • This is the smallest water heater we have ever seen; it is the size of a normal book.
  • It is easy to fit this tankless water heater into your home because it mounts vertically on the waterline and takes up virtually zero room.
  • We noticed that the unit takes a mere 3 seconds to heat the water up.
  • The stainless-steel shell is awesome for elongating the system’s durability.

Keep In Mind

The temperature is only displayed in Celsius.

4. Barbella 110V Electric Hot Water Heater

Barbella 110V

This high heating tankless water heater is the ideal size for an outdoor sink or maybe a dedicated hot water faucet in your kitchen.

It is extremely small and compact, which allows you to easily fit it into most spaces and gives it an added versatility trait that many folks wish they had. The installation process was simple and straight forward thanks to the well-marked inlet and outlet valves and the stainless components that came with them.

We were really impressed with the maximum water temperature rating on this 110-Volt tankless water heater. Most tankless heaters of this size struggle to get to this high temperature, but the Barbella model had no problems. The automatic shutoff valve is one of our favorite features of this unit, and it gives me peace of mind that I will not be wasting energy or water!

Additional Specification

  • Ideal For: Kitchen Bathroom Household
  • Rated Power: 1500W
  • Temperature: 55℃-75℃
  • Item Weight: ‎‎8 pounds
  • Key Features: Green Environmental
  • MMaterial

Why We Love It

  • The auto-shutoff feature is fantastic; I know I am not wasting any energy when the unit can power down on its own.
  • There is a dial that allows you to select the temperature range, and it is easy to use.
  • The cold-water inlet and hot water outlet are made from stainless-steel, which we always prefer.

Keep In Mind

The water pressure was slower than what we hoped for.

5. BOCCHERINI 110V Electric Instant Hot Water Heater


This dual-showerhead tankless water heater is one of the most innovative water heating solutions that we have seen to date.

In terms of just the showerhead, it is a quality, well-designed dual showerhead that has a great flow rate and provides plenty of water for a nice, long shower. The brushed nickel finish on the showerheads looks great, too!

The Boccherini hot water heating element will allow you to choose the temperature of the water with a simple dial, and it works quickly and effectively.

Because this system is only for use with showers, it is versatile enough to work for any small home, cabin, or other location where hot water may be at a premium. Another thing you will notice is that your energy efficiency will be greatly reduced. Because this system has several features included that save energy and avoid wasting water, you will feel good knowing that your new water heater is also environmentally conscious.

Additional Specification

  • Ideal For: Cabins
  • Rated Power: ‎4.32 KW
  • Material: Plastic, Copper, Resin, Rubber
  • Item Weight: ‎‎‎1.48 pounds
  • Key Features: ‎Amperage Capacity- 36

Why We Love It

  • The dual-showerhead design is great and allows users to use the shower as they please.
  • There is virtually no wait for hot water when you turn on the showerhead.
  • It is a great option for cabins or other off-the-grid locations where you may not need a ton of hot water.

Keep In Mind

It is required to be installed directly onto a breaker, which requires a plumber and an added cost.

110v Electric Water Heater Comparison Chart

NameIdeal ForRated PowerItem WeightKey Features
Vinmax Hot 110V Tankless Water HeaterKitchen Household1500W7.48 pounds1x Body of Water Heater
Atmor AT-900-03 Tankless Water HeaterResidential & Commercial use3000W4.6 pounds0.5 GMP Sink Aerator
Mini 110V 3400W TanklessBathroom Kitchen3400W2.54 PoundsGolden Color
Barbella 110V Hot Water HeaterKitchen Bathroom Household1500W8 poundsGreen Environmental Material
BOCCHERINI 110V Water HeaterCabins4.32 KW‎‎‎1.48 pounds‎Amperage Capacity- 36

Usages of a 110v Electric Water Heater

There are numerous different times and places where a 110-Volt water heater is the best choice for your water heating needs.

While you may think that this is a simple question and that showers are the only thing that you can get out of a 110-Volt water heater, this is not the case here. While it is true that showers are the most commonplace hot water is needed, 110v electric water heaters can handle the shower, and so much more.

Hand Washing Stations

Given the world’s challenges right now with a global pandemic and the increase in handwashing awareness, there is a decent chance you will start seeing handwashing stations all over the place in public areas.

110-Volt electric tankless water heaters have been providing the handwashing station water heating for years, and it is because of their appealing price, easy installation, and overall efficiency.

You could find these stations in public places all over the planet, but many people use 110-Volt water heaters in their homes for a dedicated hot water line or sometimes even in the backyard for easy access to clean, warm water!

Mobile Homes And Campsites

Another common usage for 110-Volt water heaters is in remote locations or small spaces like RVs and trailers. Numerous 110-Volt options on the market can handle the needs for the entire RV (1-2 people.) These are popular options for these remote and small spaces due to the physical size of the units.

Often, they are smaller than a suitcase and in some cases are the size of a book! They are also light, and easy to install and uninstall if you commute between your RV and another home or if you like to take your hot water with you!

110-Volt Tankless Water Heater Buying Guide

Features Of A 110v On Demand Electric Water Heater

The 110-Volt water heater was a gamechanger for many people all over the world. Numerous features make it a hit, and after reading some of these, you are going to wish you had investigated the best 110-Volt water heater sooner.

Cheaper & Easier Installation

Arguably, the most popular thing about 110-Volt water heaters is the ease of installation and the lack of any additional requirements that large-scale water heaters can sometimes possess. Because these types of water heaters can run with a 110-Volt plug, it makes them much easier to install compared to other electric tankless water heaters.

Those typically require a 220-Volt connection which may not be available to you and would add additional costs for an electrician to come to add the breaker you would need. In terms of the actual installation, the 110-Volt tankless heaters are by far the easiest install out there. They are typically small and compact, making them easy to fit into most spaces with ease.


Full-sized tankless water heaters (220V) are the most expensive when it comes to up-front costs. Luckily, the 110-Volt options are here to save the day and your pocketbook. Because the 110-Volt systems are designed to handle less overall water than a full-home system, the size and energy requirements are far less than the 220-V options, and therefore, the 110-Volt option is cheaper up-front. Also, because they expend less energy, they are cheaper to operate as well!

How do I install a tankless electric 110v water heater?

This is a very common question and one that we love to answer because the installation is as simple as it can be. With most of the 110-Volt tankless water heaters, you will have a standard 3-pronged plug that you probably have on hundreds of items around your home. Because 110-Volt water heaters only require a typical plug, as I described above, you have virtually endless options regarding where you can install the system.

You will need to find a plug near the water line to plug the system into but most of the time, water lines have numerous options around them so this will not be an issue. Once you have the perfect spot near a plug and water line, you will need to mount the unit there and then simply connect the water lines to the unit.

Some 110-Volt units have outlets on the top and bottom and others have marked cold water inlets and hot water outlet valves. Make sure you connect this correctly, although it is very simple. Once you have the water lines situated, plug the unit into the 110-Volt outlet. This should fire up the unit and you can then set the temperature and other settings to your liking!

Frequently Asked Questions

Is a water heater 110-Volts or 220-Volts?

The short answer is both. The whole-home electrical water heaters will require a 220-Volt plug that is not always available in the spot you need it. They need this plug because there is so much power needed to heat the water that a standard 110-Volt heater will not be able to keep up. The 110-Volt units will fit a standard home wall outlet, which makes installation seamless in most cases. They draw less power, so they do not require the additional voltage that the whole-home system requires.

Is a 110-Volt tankless water heater worth buying?

If you are in the market for a small-scale water heating device that is cheap, effective, and affordable, then absolutely, YES! These units are not made to handle an entire 3 bedroom home, but there are numerous other usages for them, and if you fall in line with one of those, then by all means, they are a great water-heating option.

Can I get a 110-Volt tankless water heater for the shower?

Yes, you can! Many people purchase a 110-Volt tankless water heater that is dedicated to their showering needs. Make sure to look at the GPM rating on the tankless water heater to ensure that the flow rate can handle the shower.


There are numerous places and situations where a 110-Volt tankless water heater is the best choice for your water heating needs. They are loaded with features that will provide you with endless hot water to handle everything you need to on any given day.

It may seem like there are a lot of different 110-Volt options on the market, and while it may seem like a daunting task to choose one, there is a great option available for everybody. Make sure you consider your specific situation and the water requirements that you have.

We are confident that with the help of this guide that you will find the best 110-Volt tankless water heater for you. We sincerely thank you for tuning into this article, and we wish you all the best in finding the perfect water heating solution.

Written By: Andrew Miles
Written By: Andrew Miles

30-year licensed plumber out of NYC. Specializing in Water Filteration and Softening Systems. Now, retired and enjoy sharing my industry knowledge here. See my bio.