Tankless Water Heater RV

Everyone desires instant hot water anywhere where they demand. So, good GPM flow rates tankless water heaters provide instant hot water whenever you turn the tap. After all, tankless water heater RVs become essential to perform excellent jobs to control hot water access for showers, laundry, and dishwashers.

Image Product Details   Price
GIRARD 2GWHAM Tankless Water Heater
Capacity :  2 GPM
Color: White
Runs on: Propane
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backpac Fogatti RV Water Heater Propane Capacity : 2.2 GPM
Color: White
Runs on: Propane
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backpac RecPro RV Tankless Water Heater  Capacity : > than 2 GPM
Color: Black
Runs on: Propane
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backpac Furrion 2.4GPM Tankless RV Gas Water Heater with White 16.14” x 16.14” Door Capacity :  2.4 GPM
Color: White
Runs on: Propane
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PrecisionTemp RV-550 Tankless Water Heater – Wall Vented
Capacity :  1 GPM
Color: White
Runs on: Propane
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Mr. Heater BOSS-XW18 Basecamp Battery Operated Shower System
Capacity : 1.18 GPM
Color: Silver
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So, when buying the best tankless water for your RVs, you have to consider factors like ( flow rates, size, source) according to your needs.

In fact, an ideal water heater has an excess fuel source with high GPM flow rates ensuring that it is easy to control and install in a limited space. 

There are huge varieties of RVs tankless water heaters you find on the market today, some of them are good, and some aren’t good products. That’s why this article guide will be helpful for you to get high-quality with excellent functionality products that suit your needs. 

Here we have enlisted some of the best tankless water heaters RVs from a large selection of models produced by well-known brands. Plus, They also have substantial positive reviews from customers, and it becomes easier for you to choose from them. 

Tankless Water Heater RV Propane

Here are our best tankless water heaters rv with all positive and negative aspects. You can choose from them according to your preference. Therefore, scroll down and read detailed reviews of each.

(1) GIRARD 2GWHAM Tankless Water Heater

Girard’s new GSWH-2 is one of the best water heaters on our list. The latest technology enables you to set the desired temperature level by using one button on display, producing endless warm water instantly. The microprocessor technology can monitor cold water temperature levels and flow rates outgoing hot water temperature maintenance. So, purchase this new RVs model and enjoy your time inside RVs.


Temperature Control System

The temperature control system offers you to set the temperature according to your needs. Also, if you want to see the temperature in Fahrenheit, then change it easily and convert it to celsius.

Furthermore, parents will be amazed by its pre-set temperature features. They can set the temperature, and the water will never get too hot.


Girard’s new GSWH-2 is specially designed for RVs. Its design is sleek and beautiful and installed in any limited space. The compact design enables you to carry it with you for camping and hiking.

Endless Hot Water Supplies

Girard’s new GSWH-2 offers endless hot water. The heating element heats water immediately without wastage of time. You can also control the temperature according to your preference.


  • Endless hot water supply
  • It gives constant hot water in your RV
  • It controls temperature and hot water flow
  • It performs quietly
  • Reliable and comes with freeze protection
  • It is built as compact, Especially design for RVs


  • Pricey

So, Whenever you’re looking for a propane or gas tankless water heater RV, the Girard 2GWHAM water heater is best for you. That provides warm water on-Demand. This unit is only made of RVs and a reliable choice for everyone. Not only that, it’s fantastic for winter camping use.

(2) Fogatti 2.2 GPM Portable Tankless Water Heater, 1 Pack, White

Fogatti RV Water Heater is a well-known brand that has produced many home appliances. The Fogatti RV Water Heater is built as a portable design and highly efficient, and that provides instant hot water with low-noise operation. Plus, It will never disturb your RVs. That’s why we add this product to the top of our list.

The Fogatti RV Water Heater comes with a 2.2 GPM capacity of water flow, and It is so lightweight, and the weight and portability make it the best tankless water heater for RVs. Its safety features include flameout, anti-freeze, overheat, and overpressure protections as well as troubleshooting diagnostic codes.

Plus, The other technology features like its adjustable water flow rates control system for camping and in your RV. It works with 2 D-cell powerful batteries and can heat water up to 140°F.


Temperature Control System

Fogatti RV Water Heater water heaters have the ability to adjust temp according to your needs. Just move the knob and set the temperature quickly. Plus, the other knob controls water flow. You can select water pressure like the dishwasher water flow is different, and for a shower, you need a high flow rate. So, use whatever you want.


Fogatti RV Water Heater performs excellently with propane sources. It has a propane heating unit. The automatic detection sensor fires up live burners and heats the water instantly when you turn on the tap.

This means the heating process starts when on demand. It’s like a stove. You have to be careful about it.

As previously mentioned, Fogatti RV Water Heater and another model 5L, both tankless water heaters, both run on batteries. And best suitable for camping, hiking, car washing, whatever you want but it’s good enough for permanent household use.

Temperature and Flow Rate

It offers temperatures from 80°F to 150° F. You can use desirable temperatures anywhere for a shower when it comes to temperature.

As for flow, the Fogatti RV Water Heater can deliver hot water. For car washing, shower, hand wash, cloth wash simultaneously, and 2.2 GPM hot water supplies, which are approximately the same as a tub, will deliver.

Portable Design

It is very suitable for camping. You can hang out with this unit anywhere, and you can place it in your backpack while hiking. It has a high price tag, but if you see its Excellent functionality, flexibility, and portability, make it is good enough for you in this price range.


The Fogatti RV Water Heater has better efficiency with 2.2 GPM flow rates. Its quiet operation heats the water quickly. You can get hot water on demand instantly for all outdoor and indoor purposes.

However, It has an 80% efficiency rate which is helpful to save power if you are hiking while camping.

Automatic function

This Fogatti RV Water Heater also comes with an automatic shut-off function. You can set the timer for automatic shut-off when the temperature reaches the desired point; it will automatically shut off when the heater is not in use. This way, this is the best energy-saving option and also prevents energy waste.


As portable unit, this Fogatti RV Water Heater is very easy to install. Anywhere where you want. Just attach your water heater to your water-delivering devices. That’s all Accessories for installation. You will be able to install your own expertise without requiring other tools.


  • Suitable for both indoor and outdoor
  • Safety certified product
  • Adjustable pressure control system
  • Very lightweight and compact design
  • It provides hot water with 2.6 GPM flow rates.


  • Slightly expensive

So, overall, it’s specially designed for outdoor use; it’s easy to handle because of its lightweight and portability; you can install it anywhere easily. It’s an excellent choice for those who need an outdoor water heating system for temporary use, and it suits all your needs. You will be satisfied with the Eccotemp L10 tankless water heater because of its excellent features and compact size.

(3) RecPro RV Tankless Water Heater | On-Demand Hot Water Heater | Gas Water Heater | Remote Control Included (Black)

RecPro’s line of water heaters is the best water heater in the market nowadays. The quality features such as size, gas-electric and excellent performance make it best for any RVs. The beautiful design and high-quality metal material make its life long-lasting. RecPro Rv tankless water heaters provide 6gpm hot water flow rates instantly with low power efficiency.

Moreover, they are reliable, well-built water heaters. Plus, they perform the heating process on demand. This is the best solution to spend more time with your family camping without any problems.

Here are several features that made this fantastic machine.


Control Device

Repro tankless water heaters come with a control system that controls gas, electricity, and water flow at a specific temperature. Their microcomputer control system keeps the temperature at the best desirable level. That gives you a comfortable environment and user-friendly environment.

Plus, you can also set temperatures in celsius and Fahrenheit according to your preference. The excellent display control device panel allows you to switch Celsius to Fahrenheit switch, increase heat, and decrease heat through the button.

Safety Measures

The Recpro RV heater was constructed beautifully with safety features. It has a dust net cover that prevents it from any dust. The next fantastic thing about this heater is that it performs the heating process with a low water pressure startup. This helps to protect the heater and helps in ease of use.

Moreover, the flameout protection makes it durable and safest to use while heating. It can automatically turn off when water is heated and not in use. This thing making sure safety is. And no gas leaks out.

The next safest thing about the recPro RV heater is its speed-changing functions. You can change the speed of the fan that eliminates any harmful gasses after heating. And also prevent blockage in the flue. When you speed up the fan at high speed, the flame automatically turns off to ensure safety is kept.

Extra Features

In that respect, an RV water heater is vital for every home and for everyone who loves camping and hiking. So choose this recPro water heater which is a highly durable and highly safest RV heater for you. Plus, the convenience of home to wash dishes and clothes, take showers and clean up with hot water.

Instant Hot water Supplies

With a recPro RV tankless water heater, you don’t need to wait anymore. You will be able to get warm water halfway through your shower. Plus, you have an instant hot water supply to any faucets or showers without waiting for the tank to warm up with this incredible machine.


  • Stylish and well built
  • Continuous hot water
  • Set temperatures according to your desire
  • Built-in freeze protection perform a great job
  • Easy installation


  • Expensive

Overall, repro is the best suitable RV tankless water heater for everyone. But if you don’t want an expensive heater, then see others in our listed item. Recpro RV tankless water heater is the safest water heater for RV camping. So enjoy unlimited hot water supplies on demand.

(4) Furrion 2.4GPM Tankless RV Gas Water Heater with White 16.14” x 16.14” Door – FWH09A-1-A

This Furrion 2.4 GPM Tankless RV Water Heater is the best water that heats water according to your desired temperature. This perfect temperature gives you a comfy environment. The high heating power elements use gas (LPG) to provide instant hot water supplies anywhere where you want. If the temperature is low in winter, even this heater’s excellent heating element gives you instant hot water.

If you need a perfect temperature control system with the latest technology intelligence. Then go with the furrion water heater. That gives you excellent performance with instant hot water supplies even in 32 temperatures.


Safety and Automatic Shut-off

Plus, if you think about other safety issues due to its high heating element, in this case, this water heater has two heating sensors that automatically turn off when the temperature reaches the desirable point and exceed safe limits. The gas water heater definitely has safety levels so, don’t worry about its high heating performance.


Furrion is built as a tankless gas water heater RV that supplies instant hot water with 2.4 GPM flow rates. That is enough for hand washing, shower, and dishwashing. Plus. It consumes less power than a tanked water heater. Furrion tankless water heater can run on 12-volt power. So. It easily handles 32° temperature and offers instant hot water.


Additionally, the furrion heater comes with an excellent sleek design. And can easily be replaced with any other model like the Suburban 4-6GPM water heater. They ensure high durability and give you a two years warranty.

RV Water Heater Thermostat

They are built as an Intelligent Control system that offers to set desirable temperatures. You can control water. Time, pressure level, and temperature easily with alarms that alert you when the pressure is low.


  • Excellent performance with low temperatures
  • Durable and replaceable
  • Easily fit wall thermostats
  • Nice long showers to come at least 20 mint
  • It comes with the latest technology control
  • 2-years warranty


  • The gas heater may be complicated to install

Thus, choose this gas water heater for your RVs. You will be amazed by its quality and on-time hot water supplies. You can easily install and can enjoy a long hot water shower if you are on RVs.

(5) PrecisionTemp RV-550 Tankless Water Heater – Wall Vented

The other fantastic heater in our best tankless water heater RVs is PrecisionTemp RV-550. This is the best choice for your RV, trailer, tiny house, mobile washing services, or other small dwellings. The RV-550 works amazingly for hot water flow. Plus, it simultaneously consumes less energy and saves money. It has 32 pounds, making it very lightweight, and offers a 6-10 gallon water heater.



This heater works with very high propane energy. And save 50% less propane than other water heaters. It comes with a 20 pounds lightweight tank that provides hot water on demand. The hot water supplies approximately 940 gallons and only provides hot water when turning on the tap.

Plus, its 5gpm flow rates and three GPM pressure are enough for every use.

Automatic Functionality

The RV-550 also comes with some excellent features like its automatic functionality make it the best water heater for RVs. You can adjust the gas ( propane) used according to your needs. The automatic temperature control level prevents overheating in summer and stabilizes the temperature in winters.

Power Usage

It uses less than 1.5 amps of power in summer and on regular days, and when the weather is very cold, it will use three amps when the cold weather protection is activated.

Built-In Freeze Protection

It’s the only tankless water heater with built-in freeze protection for whole years and any season. It controls the burner for overheating and electric elements to protect the system when it senses freezing temperatures.


  • It designed especially for RVs
  • Very lightweight and durable
  • Easy to assemble
  • No pilot light
  • High propane efficiency
  • The USA tested product


  • Not suitable for permanent household use.

All are good enough in this PrecisionTemp RV-550 tankless water heater. It easily assembles and installs quickly due to its compact design. So, go for it without any doubt. It will go along with you.

(6) Mr. Heater BOSS-XW18 Basecamp Battery Operated Shower System

Mr. Heater BaseCamp BOSS-XW18 is a Battery Operated water heater that can run on a 120v battery and provide hot showers for about 40 minutes continuously. You can charge battery charges via an AC adapter so you can get power from your vehicle.


Temperature Control Systems

You can get a luxurious shower continuously without wastage of time. This heater provides immediate hot water on demand and saves energy and water. Plus, you can select your favored water temperature according to your preference. Just press the pulse ignition button.

Durability and Design

You can attach this water heater near to your shower. It’s easy to assemble and gives you high durability, which is about 10-12 years. It’s best suitable for hiking, and you can use it instantly for hand washing and dishwashing in the winter seasons or the mountains.


The Mr. Heater BOSS XW18 includes heating level protection. So, you can enjoy your luxurious shower and won’t worry about too hot water. Plus, the cordless battery design offers you hot water in the most remote locations.

Easy TO Use

Mr heater required 12 ft assembly. And it looks beautiful when installed near the shower. It is easy to use and provides high safety due to its freeze protection and auto-shutoff features.


  • Well made and safety certified water heater
  • 120v battery power required
  • Gove long shower time approx 40 mint hot water shower continuously
  • High-efficiency rates
  • Durable and portable design 


  • Require extra water container

So, if you want a good stable temperature control feature heater, use the Mr. Heater BaseCamp BOSS-XW18. It will offer unlimited hot water supplies, and in autumn and spring, and winter, you can set according to your needs. And increase 45F or above for the best hot shower. You can install it near the shower.

Buying Guide For Tankless Water Heaters For RVs 2021

Before buying the best feature and high-quality tankless water heaters for RVs, you must determine key features before choosing a model for the best possible fit according to your requirement.

Savings and Efficiency Rates

If we talk about money-saving terms, tankless water heaters are more effective and efficient than tanked water heaters. They only supply hot water on demand. When you turn on the tap, the heating process will begin, and you can use instant hot water without wasting time. It utilizes less fuel and saves energy. It’s environmentally friendly for those who love camping.

However, Tankless water heaters do not need to heat the entire tank, saving you money and fuel and going a long time with you. Plus, a higher efficiency water heater heats the water with 80-90% efficiency rates.

SIZE And Usage

You should estimate the perfect installation space before buying an RV tankless water heater. Plus, for RVs, camping, and hiking, Space is premium real estate.

However, You have to choose according to your space and usage. If you need a water heater for the shower, dishwasher, bathtub, and toilet, choose a high GPM flow rate water heater for this. That is why we will recommend the 4-5 GPM water heater best suitable for multiple uses.

In addition, you should go with a lightweight and portable heater so you can easily maneuver it.

Hot water Flow Rates

Flow rates mean for a tankless water heater js its hot water supplies amount for per minute. Flow rate is usually measured in gallons per minute (GPM). Some tankless heaters come with a 0.5 GPM hot water supply, while others will provide five GPM.

Many people use tankless water heaters for multiple-use simultaneously, so choose high flow rates water heaters for multiple uses at the same time. For shower comfortability, a 2.5 GPM. Water heater best for you.

In addition, if you have four family members on your RVs, you should go with a 2.5-3 GPM water heater.

Power Source

Tankless heaters come with different power sources. You have to decide which best satisfies you, easily available in your RVs. They are powered by natural gas, propane, and electricity.

They also come with double and single power sources. If one is not available on the point, then use alternatives. But if you choose a single source water heater, we suggest choosing an electric or gas water heater. But remember, gas water heaters require more maintenance and complicated installation and are more expensive to run than electric heaters.

Tankless vs. Mini-Tank

If you see the above benefits of a tankless water heater, you will definitely want to buy an efficient thing compared to others. A tankless water heater requires less space, and they are more efficient. They supply instant hot water without waiting for more. 

While the mini-tank water heater takes more space and has limited capacity to store hot water, choose the best one that best suits your space and needs.


The price range will be increased according to the GPM. The GPM standard limit is 6-10GPM hot water if you choose the best standard-sized water heater for RVs with six GMP that comes with a $200-250 price range.

Tankless Water Heaters RV Pros And Cons

A tankless water heater comes with some pros and cons. Here we mention some tankless water heater RV problems and benefits.


  • A tankless water heater provides endless hot water on demand.
  • Easy to install in limited space
  • Without tank space, you can get endless supplies whenever you need them.
  • They’re energy-efficient and use less energy as compared to a tanked water heater.
  • No cold water supply. It supplies only Instant hot water.
  • Exceptional performance while multiple functions. You can use 2-3 showers at the same time without any problems.
  • It needs less space for installation.
  • Highly durable as compared to tank water heaters.
  • It comes with a minimum 20 years warranty.
  • Conserve/Save water for birds and plants, not no longer wastewater.
  • Best Money and energy-saving option for you. Due to its less energy consumption in case, it saves money on electricity bills each month.


  • Highly Expensive
  • Inconsistent temperature
  • If you use a pilot light gas-powered unit, it can waste energy.

What Types of Tankless Water Heater for RVs?

The main two categories are propane and electric.

Tankless Water Heater Rv Propane/Gas

A gas-powered tankless water heater is also known as a propane water heater. That produces hot water by using propane or a gas source. Plus, The process of making hot water is easy. The gas pine is fitted to the unit and requires flue to release the exhaustion. These are not environment-friendly options for you, and it’s less effective and less efficient than an electric water heater.

However, If you do not have a gas supply system in your whole house or RVs, then it will be more challenging to install. That’s why, It requires propane gas where you want hot water.

Faqs About Tankless Water Heater For RV

Here are some important frequently asked questions that will be helpful if you have any difficulty using a tankless water heater.


In the end, we hope you know very well about tankless water heaters. So, please choose from our top six best tankless water heater RV, which perfectly suits your needs. These all operate efficiently and perform perfectly for both gas and electricity.

All of the tankless water heaters are top-rated. But if you have any confusion choose from them. So, we recommend the PrecisionTemp Tankless Water Heater that offers lots of versatility, a high flow rate, powerful heating capacity, and a temperature control system according to your needs.

Overall, The best electric tankless water heater for an RV can perfectly meet your heating source, water consumption, and size.

We hope this tankless water heater RV review is very helpful to you. So, this is the best time to determine exactly which one best fits your needs without wasting more time.