Best 110-Volt Tankless Water Heaters for RV 2023

If you’re a frequent traveller in an RV, then you know how important it is to have hot water on demand. Tankless water heaters offer a convenient and efficient way to heat water as you need it, without the need for a large storage tank. In this post, we’ll be reviewing some of the, we’ll be reviewing some of Best 110-Volt Tankless Water Heaters for RVs on the market and helping you choose the best one for your RV.

1- Garosa 3KW Mini Electric Tankless Instant Warm Water Heater for RV

Best Thermoflow Tankless Water Heater for RV

Recently, I have reviewed many brands in search of the most energy-efficient RV tankless water heater. After my review, I tracked down the Garosa 3KW Mini Electric Tankless Instant Warm Water Heater for RV. I discovered that Garosa is an ideal brand for solving customer problems and meeting customer needs. When I ordered my first tankless water heater for my RV, I had a great experience with their customer service.

Garosa 3KW Mini Electric Tankless Instant Warm Water Heater for RV

According to their claims, they prioritize and continue to believe in the best customer service. I completely believe in Garosa’s brand vision for providing high-quality products. As an old customer of theirs, I have experienced the excellence of their products, such as the best 110-volt tankless water heater for RV. That’s why I am welcoming you to also purchase this highly recommended product from their store.

Standout Features:

Garosa Mini Electric Tankless Instant Warm Water Heater comes with a 3kw Mini Digital LCD Thermometer and is suitable for RV and home kitchen washing. However, this product has a US Plug and is only 110 Volts, so it can only provide warm water, as it cannot meet high-temperature requirements. To ensure a better flow and working, this 110V electric tankless water heater requires a 32Amps circuit breaker. Therefore, you can enjoy hot water in any weather without waiting, and easily adjust the water temperature by controlling the water flow and using a simple operation.

This mini electric tankless water heater is powered by batteries, which makes it a practical choice for RV use compared to fully electric and gas sources. It is also recommended for its stainless steel construction and compact design. The counter is made of brass, which further enhances its durability and portability as a tankless water heater for an RV.

Why I am suggesting Garosa Mini Electric Tankless Instant Warm Water Heater?

I am suggesting this product for its feature of safe use. It is a safe heater, electricity saver, and water saver. Furthermore, it offers options for no pollution and no exhaust gas. The Garosa brand ensures the safe use of this product because all current and voltage power issues are strictly tested for product safety before it leaves the factory.

  • Best easy to install.
  • It heats the water quickly.
  • Great on saving space with perfect fitting.
  • They have a safety shutoff.
  • Best options for temperature control are available.
  • It can only make the water warm but this will not be very hot water.

2- iHeat Tankless PFBA Electric Shower Head Heater

Best Easy-to-Install RV Tankless Water Heaters

We rarely experienced cold temperatures while travelling through San Antonio with my family. This particular December night time temperature was getting into 14° to 8°. Accordingly, the family relished a warm water shower with an electric shower head heater. My iHeat Tankless electric shower head heater came with a wired plug ready to use. For a more comfortable experience with this heater shower, I hooked it up with a 9 feet American wire gauge 14 extension cord. And I swapped out the included shower head with a shower wand with a 10 ft stainless steel hose.

iHeat Tankless PFBA Electric Shower Head Heater

Standout Features

The IHEAT Hot Spot AHSH is a patented tankless shower head heater that is designed with the utmost quality and safety in mind. This 110-volt tankless water heater is small and powerful enough to be used as a portable shower, so you can easily install it anywhere you need hot water, including in your RV due to its space-saving design. The tankless shower head heater can easily be connected directly to the shower thanks to its fast and easy installation process.

The body of the heater is finished with a shiny chrome finish and has waterproof construction to prevent interior moisture. If you want an endless supply of hot water while saving energy, the IHeat Tankless Electric Shower Head Heater is a great choice. This tankless heater is engineered to be compact, powerful, and long-lasting.

Why I am suggesting the iHeat Tankless P FBA Electric Shower Head Heater Model?

I recommend this 110 V tankless water heater for its patented waterproof design. The product ensures the safety of the consumer by isolating and grounding all electrical connections within the heater’s construction. This patented design also eliminates the need to replace heating elements due to the removal of air from the heating chamber.

  • Pretty well made for the price.
  • One of the best energy-efficient tankless water heaters.
  • It has electronic temperature controls.
  • It has a good-sized internal metal tank which allows for a little batch heating.
  • Provide a spray of comfortable warm water.
  • Not recommended for too many cold areas.

3- Krisy Tankless Hot Water Heater

Best Mini Electric Tankless Water Heaters for RV

Krisy Tankless Hot Water Heater is one safe tankless water heater that will save up to 55% on your electric cost and water saving. This heating level of the product is adjusted by a faucet switch and water flow regulating valve.  So, by applying water flow with a 3000W heating system, you can get convenient, consistent and endless hot water at very short notice.

Krisy Tankless Hot Water Heater

Through this electric tankless water heater, the small water flow means high temperature and the large water flow means low temperature. For this reason, this water heater was convenient to me because while RV camping it provided warm-up water to take the chill off without burning my skin. But when I purchased it, I knew that I had to reduce the flow so that it heated properly. I did several tests and it did work satisfactorily.

I recommend this water heater because it is durable enough to be used in the winter for tasks such as hand washing, dishwashing, and face washing.

Standout Features

Briefly, I will now tell you about some standout features that I found useful during my experience with this heater. The main features that stood out to me were safety, durability, and energy efficiency.

Every piece of Krisy Hot Water Heater is strictly tested by applying multiple protection devices to ensure 100% safety. For safety purposes, the inner water and electricity lines are designed to run separately. That`s why this product will avoid leakage or scale build-up harm.

The temperature can be adjusted by a water flow regulating valve or tap switch, ensuring a safe and efficient heating process without creating pollution or gas exhaustion.

Why I am suggesting Krisy Hot Water Heater?

I am suggesting this water heater due to its Smart self-adjustment feature. Because this tankless water heater can adjust power input based on flowing rate and temp setting in real-time. Hence, you still get an ideal temperature instead of scalding hot water that heads toward simple operation and a comfortable experience.

  • High-quality product with the highest temperature that reached the tap 55 to 57 degrees Celsius.
  • Most convenient 110 v tankless water heater.
  • Excellent product just makes sure to change the plug to a 30amp thermal pad and one high-strength source.
  • Need a little bit of improvement for an instant heating feature.

4- Ariston Aures Slim110-Volt Electric Tankless Water Heater

Best under $200 RV tankless water heater

Ariston Aures 110-volt Electric Tankless Water Heater is providing the fastest way to unlimited hot water wherever and whenever you want. I bought this almost a year ago. I chose this brand because I liked the simplicity of its design.

Moreover, this heater is fascinate me due to its 3.5Kw, 110-Volt, 0.59 GPM point of use which is suitable for heating water for one sink. In my opinion, this product is the best tankless water heater for under $200. If you want to bring comfort and excellence to your RV for a reasonable price, this is a great deal.

Ariston Aures Slim110-Volt Electric Tankless Water Heater

Standout Features

In contrast to other tankless water heaters, the Ariston Aures Slim 110-Volt Electric Tankless Water Heater is an endless and instant water heater that provides comfortable hot water on demand. It has a compact design that saves space and does not require a recirculation line, making it a great option for remote locations.

To install this water heater in your RV, you only need a cold-water line and an electrical connection. This electric water heater only uses electricity when hot water is needed, giving you an unlimited supply of hot water without wasting energy.

Why I am suggesting Ariston Aures Slim110-Volt Electric Tankless Water Heater?

One reason I recommend the slim tankless water heater is its ability to provide hot water on demand. This means that hot water is available as soon as it is needed, without any delay or waiting time. As a result, there is no need to waste water by running the tap while waiting for the hot water to arrive from a storage tank heater. This makes the slim tankless water heater an efficient and convenient choice for hot water needs.

  • Great temperature control options.
  • Compact and neatly sized.
  • East to install.
  • Hot water comes quickly and consistently.
  • Provide hot water for every camper.
  • Take a Little bit of a long time to warm up as compared to other 110v electric tankless water heaters.

5- FMATOZ Mini Electric Tankless Water Heater

Best Instant Hot Water Heater with Remote Control

When I ordered this instant water heater got it in pretty quickly. But I had to wire the 40-amp breaker. Because the camper I installed was only rated a 30 amp. The only problem I found with this tankless electric water heater was that the remote has no option for switching its temperature from Celsius to Fahrenheit.

Besides that, I love it worked great for my shower even though it says it won’t work for showering but it did when I got out the walls were sweating. After use, I discovered this tankless water heater was worth purchasing. If you’re willing to get more temperature than 55℃/131℉ then this 110V electric instant water heater will be a not ideal option for you.


Standout Features

This electric tankless water heater uses a 5500W heating system to provide instant hot water within just 3 seconds. It does not require preheating, making it a convenient choice for RV use. The maximum temperature of this water heater reaches up to 55°C (131°F), which is suitable for tasks such as dishwashing and showering.

The water heater comes with a remote control (optional) and a touch screen for temperature adjustments. It is designed for safety and convenience, with a wet hand adjustment feature to prevent accidents.

Additionally, this 110-volt tankless water heater is easy to install, with a compact design that can be easily fitted in the bathroom, kitchen, or under the sink of an RV.

Why I am suggesting FMATOZ Mini Electric Tankless Water Heater?

I am suggesting this best Mini Electric Tankless Water Heater due to its Space-Saving feature. Because it is one of the best space-saving tankless water heaters which has a compact design. To illustrate, this water heater is available in the size of a small suitcase. Moreover, this best 110-volt tankless water heater for RV also has a wall-mount design that frees up valuable space within your RV.

  • Most energy-efficient RV Tankless Water Heater.
  • A best tankless RV water heater which is effectively working with 110-volt voltage.
  • Provide fresh hot water in seconds in RV.
  • Advance option of up, down, on and off.
  • Well worth the money because it works perfectly in an RV.
  • It takes about 2 minutes for the tank to send hot water to the sink.


What is the best tankless water heater for RV?

The Best Overall 110v RV Tankless Water Heater is Ariston Aures Slim Electric Tankless Water Heater. This best 110v tankless water heater for RV belongs to the most reliable water heater brands for over 80 years. Because this Tankless heater can provide all features of high-quality and energy water heaters. Generally, these qualities include space-saving compact design, instant hot water on demand, easy installation and supply of unlimited hot water.

What is the best tankless water heater for RV?

The top picks of the best RV tankless water heater of 2022 are given below: 1. Girard Prod Tankless Water Heater 2. Fogatti RV Tankless Water Heater 3. RecPro RV Tankless Water Heater 4. Camplux Tankless Water Heater 5. Furrion 2.4GPM Tankless RV Gas Water Heater

How many volts does an RV water heater use?

An RV water heater works on a 12-Volt-DC Electrical System. Now in these modern days, almost all RV water heaters are electronically controlled and powered by a 12-volt electrical system. Because now older motorhomes for some smaller RVs might be equipped with pilot-model water heaters. But now these types remain in the minority due to 12-volt electrical advance systems.

Is there a 110-volt tankless water heater?

Yes, there is a 110-volt tankless water heater which is named MAREY Power Pak Plus tankless electric water heater. This electric tankless water heater is available at an affordable which is also easy to install to provide hot water. This electric heater is very simple to install by attaching directly to its pipes.

What Are the Different Types of Tankless RV Water Heaters?

Tankless RV Water Heaters are the best and most useful invention in the development of RV water heaters. Because they can eliminate the need for tanks to store hot water. It can directly supply water through a set of coils. In the markets, there are many types of tankless water heater are available for RV. So, you can install them after choosing the perfect fit for your RV.


In conclusion, choosing the best 110-volt tankless water heater for your RV can be a challenging task. However, by considering your specific needs and doing your research, you can find a tankless water heater that will provide reliable hot water for your RV adventures. We hope that our review of the top 110-volt tankless water heaters has helped you narrow down your options and find the perfect fit for your RV. Whether you opt for a compact unit that saves space or a more powerful model for larger groups, you can be confident that you’re making a smart choice for your hot water needs on the go.


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