Best Electric Tankless Water Heater For RV

Do you need the most convenient source of hot water in your RV travel? Then an electric water heater is a perfect solution to ensure your requirement and comfort as at home. It is convenient for showering, washing dishes, and personal cleaning.

An electric tankless water heater is an eco-friendly and space-saving, and adjustable device for an RV campaign.

Besides, this device is operated with electricity that doesn’t require liquid gases. Generally, this device is essential for those who are used to RV travel and campaign.

We are reviewing on top seven best electric tankless water heaters for RV. Also, you will learn the buying consideration and the benefits of a tankless electric heater. So, let’s dive to dig for the best tankless water heater.

Best Electric Tankless Water Heater For RV

Required little energy, 90% smaller size, lightweight and energy-saving.

Compatible with commercial and residential use, quick heating, 6-years of warranty.

Remote controlled, digital display, multiple protection

Girard offers one of the best-selling tankless water heaters in the RV industry, supplying a large number of manufacturers with a high-quality solution.

Portable with handle, overheating protection, lowest water pressure and advanced features

Elegant and durable, easy installation, 2-year warranty, Vortex technology

We have analysis on several tankless water heaters for RV and figured out top notches seven models. Our selected electric heater is proven for the best convenience of RV travelers. So, these are reliable and affordable to consumers.

EcoSmart ECO 11 Electric Tankless Water Heater

EcoSmart ECO 11 Electric Tankless Water Heater


EcoSmart Eco 11 tankless water heater is for those who demand a continuous flow of hot water with as little energy as possible. It is great for low-flow applications like small sinks, office break rooms etc.


It is white, weighs 6.5 pounds, and its dimension is 3.75 × eight × 11.5 inches. It runs at 220 Volts and heats water at 13 kW.

Key Features:

  • It provides different amounts of hot water based on different climates, one shower in colder and two in colder climates.
  • It delivers ‘hot water on the go’, meaning instant hot water and no unnecessary maintenance when called.
  • On average, it provides 2 gallons of hot water per minute.
  • It is 90% smaller in size than tank heaters and amazingly easy to install on the wall.

What Customers Are Saying?

Those of us who have a small family living in a small house couldn’t find any other water heater as great as it is. This super slim heater runs well after 4-5 years of usage and saves our electricity bills more than other heaters.

The warranty system is disappointing. Installation by only a licensed electrician ensures warranty, otherwise not.

Bosch Electric Mini-Tank Water Heater Tronic 3000

Bosch Electric Mini-Tank Water Heater


It is another best RV water heater any commercial and residential usage, Bosch 7-gallon mini-tank water heater is great. It is easily installable on a shelf or floor vertically or horizontally and comes with a 6-year warranty.


This mini-tank water heater measures 10×10×16 inches and weighs 29.5 pounds. It heats water using 120 volts and 1440 watts of power.

Key Features:

  • Its temperature and pressure relief valve ensure safety while heating water.
  • It delivers up to 7 gallons of hot water in 1-hour maximum by using 98% thermal heat.
  • It works as a primary and supplementary source of hot water and a buffer for tankless heaters that experience ‘cold water sandwiching’.
  • The premium glass-lined material and CFC-free foam insulation ensure durability, and the sleek design fits in any compact setting.

What Customers Are Saying?

In a word, this Bosch water heater is a power, money, time, water, and energy saver. We don’t have to connect a hot water line individually to every sink. Also, it doesn’t make us wait long for hot water in showers. Water reheats pretty quickly with this electric piece.

However, we find the installation process written in the manual complicated. And leakage keeps happening frequently.

ECOTOUCH Tankless Water Heater Electric 5.5kw 240V

ECOTOUCH Tankless Water Heater Electric 5.5kw 240V


Though the ECOTOUCH 5.5KW heater is designed only for kitchen and bathroom sinks, it guarantees an efficient lifestyle. It provides 1.2GPM clean and fresh hot water with extraordinary features.


This heater measures 19.29 x 13.46 x 8.7 inches and weighs 7.94 pounds. It runs on AC power, uses 240 volts and 5.5 KW power to heat water, and has a remote control.

Key Features: 

  • It provides instant, consistent, and endless pure hot water without preheating and terrible temperature fluctuation.
  • The smart heat adjustment feature, digital display, and touch control panel allow easy and comfortable heating in ideal temperatures.
  • The multiple protection features ensure durability and prevent leakage and other harm.
  • The sleek and compact design and 360° installation are highly beneficial for tight settings.

What Customers Are Saying?

The oatmeal-box-like design beats other compact tankless water heaters. Plus, the remote-control system makes installation and operation faster and easier. Also, the 98% optimal energy efficiency decreases power usage and bills.

Sadly, we cannot use this heater for more than one sink. Also, the hot liquid does not reach if the sink is too far. The water flows slowly in cold climates.

Girard Tankless RV Water Heater, 12V Power, 42,000 BTUs

Girard Tankless RV Water Heater, 12V Power, 42,000 BTUs


Camplux 5L Outdoor Portable Water Heater, 1.32 GPM Tankless Propane Gas Water Heater for RV

Camplux 5L Outdoor Portable Water Heater, 1.32 GPM Tankless Propane Gas Water Heater for RV,


Camplux 5L propane water heater is best electric water heater for rv. It is designed for outdoor activities, including campings and vacations. It is lightweight, portable with a handle, and features flame-failure protection, oxygen depletion sensor protection, and overheating protection.


This Camplux heater is wind-powered, weighs 10 pounds, requires 2 D lithium batteries, and comes with an 11.42 x 4.33 x 14.8 inches dimension.

Key Features:

  • In cold settings, its anti-freezing drain plug prevents the remaining water in the water from freezing.
  • It uses only 3 volts of power and works perfectly with the lowest water pressure of 3.0 PSI.
  • The advanced combustion technology provides 11.5% less energy consumption and decreases burning noise.
  • It provides 5L/1.32-gallon hot water per minute between 46.4℉ (8℃) and 114.8℉ (46℃) temperatures.

What Customers Are Saying:

We love this propane tankless water heater for RVs for its heating accessories. Those accessories save us from buying extra things and spending bucks unnecessarily, and the batteries allow us to use the heater without electricity.

It is not a waterproof heater at all! The biggest problem which leads to covering this heater is always with plastic in wet seasons. Also, the delivered water is not meant for drinking.

Furrion 2.4GPM Tankless RV Gas Water Heater

Furrion 2.4GPM Tankless RV Gas Water Heater


The Furrion 2.4GPM tankless RV water heater is truly a versatile heater within $700. Along with shiny white color, highest quality materials, and outstanding features, Furrion’s 2-year warranty comes.


This suburban tankless water heater measures ‎12.81 x 12.62 x 20.75 inches and measures 47.5 pounds. It uses 12 volts/60,000 BTU power to heat water.

Key Features:

  • It is easily installable and automatically shuts off when the temperature exceeds a safe limit.
  • The eye-catching wall thermostat displays the water temperature and time as well as alerts about the pressure level.
  • Its advanced safety features and Vortex technology ensure secured and consistent water heating in desired temperatures.
  • The Vibration Smart technology and components provide stability and durability on bumpy roads.

What Customers Are Saying?

Since this Furrion water heater is specially designed for roads, we love to buy it to enjoy our relaxed vacations. Also, we can shower for a long time with a non-stop flow of water and a quick heating and cooling effect.

Though the manufacturers brag that it delivers 2.4 gallons of hot water even when temperatures drop drastically, it is not true. Plus, it leaks water profusely and is not waterproof.

What is an Electric Tankless Water Heater?

The electric tankless water heater is an efficient device that runs with electricity to heat water at home or a recreational travel car. It provides hot water according to the user demand. When you turn on the water tap, the water goes through the electric heater’s heat exchanger and makes the water hot. Overall, this amazing device is space-saving, energy-saving and affordable.

What Types of Tankless Water Heater Are There?

Based on the production generation, there have three main types of the tankless electric water heater. So, the features and functions may also change because of the advanced technology. Let’s know the types of a tankless heaters.

  • Non-condensing
  • Condensing
  • Condensing hybrid


The non-condensing tankless water heater produces the first generation that efficiently exchanges normal water for hot water. You can get hot water as per your demand because this non-condensing water heater uses an exchanger whenever someone turns on the water tap. Do note the efficiency factor is .82-.85.

This technology is proven to perform best at RV in Japan and Europe. But there is some downside to this device: it emits hot exhaust, so it must install a stainless-steel vent.


It is also known as the second-generation tankless water heater designed with 92-94% more efficiency. This device uses a double heat exchanger to make hot water, and you can use an inexpensive PVC to reduce the heat.

Condensing Hybrid:

Condensing hybrid is known as a third-generation tankless water heater. This water heater  produced first in the United States. This heart has come with a small tank of 1 or 2 liters. The efficiency of this heater is 92-.96. You can use this device with PVC vented system.

How Does a Tankless Water Heater Work?

A special heat exchanger element inside the tankless water heater that works to make the water hot. When the user turns on the tap, this heat exchanger goes through the internal networking line and instantly makes hot water. Keep in mind; this device can’t store hot water like the traditional heater.

tankless heater is more efficient because it produces hot water only whenever required. The flow control system gets heated when users request hot water.

How Energy Efficient is the Heater?

It is considered that an electric water heater is 100% energy efficient because it uses electricity when the user requests to get hot water. Otherwise, this device stays normal that doesn’t require any electricity.

Buying Guide For Best Electric Tankless Water Heaters For RV

If you consider the following factors before buying a tankless water heater, you can benefit much from this device. Let’s know the factors.


Eco-friendliness is an important factor to stay safe from several risks. Ensure that your tankless water heater is not designed with any harmful components and elements that threaten human and animal health.

Read more, Under Sink Water Heater.

Temperature Adjustability:

All tankless water heaters and POU devices have an LED screen from where a user can adjust the temperature level. Most importantly, the tankless heater allows controlling the temperature efficiently. Also, it has a degree-to-degree temperature controlling system that is precise than dial control.

Heating Elements:

Heating elements refers to the medium inside a tankless heater that works to exchange the electricity to heat. Ake sure about the good quality heating resistance before buying a tankless water heater.

Maintenance and Installation:

Right maintenance can make your tankless heater long-lasting. However, try to choose a water heater that needs less maintenance. As well as, easy installation is essential for a beginner. In this case, you can pick up a device with an annual user guide.

Physical Size:

As you will use this water heater in your rv car, it is important to consider the physical size of the tank. Because rv has not a lot of space to install a larger tank. So, larger tank may create problem for installation in small space in rv So, try to pick up a medium size water heater for rv

Water Flow Rate:

A tankless water heater’s average water flow rate is 4 and 8 GPM. Note that an ideal tankless heater should have at least one gallon or two-gallon water per minute.

Choosing The Correct Power Source:

There have three primary power sources for a tankless water heater. Although tankless heater is also operated by propane and natural gas, the most convenient fuel source for RV is electricity. Most importantly, the maximum tankless rv heater comes with electric power sources.


  • Can you put an electric tankless water heater in an RV?

Yes, you can put an electric tankless water heater in an RV, and even a tankless heater is specially designed for space-saving that needs a little storage space. However, installing a tankless heater in an open space is good for easy connection on and off.

  • How big of a tankless water heater do I need for RV?

A 6-to-10-gallon tankless water heater is enough for basic RV requirements. But there has a tankless heater that comes with more than 12-gallon capacity. The good thing is that the RV water heater has an excellent unit replacement function.

  • Are RV tankless water heaters worth it?

Yes, RV tankless water heater is undoubtedly a worthy choice for a recreational vehicle. These types of heaters come with great support, little storage space, eco-friendly function, and affordable price.

Final Words

A tankless electric heater is a blessing for RV travel. These types of water heaters get popular with the rv campaign and households. We have reviewed on top seven best electric tankless water heaters for RV.

Each tankless water heater on our list is tested for RV, but you can read our buying considerations to get the best product.

We will update this content with any of your queries about the tankless water heater. So let us know your question or recommendation about this content.

About The Author

Leave a Comment