5 Best RV Water Heaters 2021

Best Water Heaters for Campervan 2021

Girard 2GWHAM On-Demand Tankless Water Heater

GIRARD 2GWHAM Tankless Water Heater
  • Regulates the burner to maintain the set hot water temperature

The Girard 2GWHAM On-Demand Tankless Water Heater provides the homeowner with an efficient and easy-to-use model that gets the job done smoothly. And it also has some pretty cool features that should put this at the top of your list. One of these features is its construction with a built-in microprocessor, which can track incoming low temperatures. In fact, you don’t just look at it; it also adjusts the necessary heat requirements for the winter season. It also has protection against frost, which makes it specially prepared to survive the winter months. If you’re a full-time or winter camper, there aren’t many better options than this Girard RV Tankless Water Heater, given features like these.

This Girard tankless water heater offers an impressive 42,000 BTUs, delivering hot water even in large RVs. I love that it offers an infinite amount of hot water whenever I need it, and I never have to worry about running out of water in the middle of the shower. The heater also maintains an even water flow through a built-in microprocessor designed to automatically detect and adjust the temperature. With no reservoir, the radiator setup is small and straightforward. It is not necessary to connect LPG lines, anodes or bypass valves to the system. You can also use gas or electricity, benefiting from a 12-volt DC power supply that operates safely at less than three amps.

Precision Temp RV 550 Tankless Water Heater

PrecisionTemp RV-550 Tankless Water Heater - Wall Vented
  • Designed specifically for RVs, trailers, tiny houses, cabins, mobile washing services, and more

One of the most versatile products on this list, the Precision Temp RV 550 Tankless Water Heater, has been proven to work effectively in many different situations. It has proven that it can deliver peak performance in RVs, tiny homes, trailers, cabins, and even mobile wash services. It thrives in all of these situations for a fairly simple reason: its design. PrecisionTemp created this device to make sure it was as light and compact as possible, making it easily manageable / mobile.

Designed specifically for RVs and other small structures, this wall-mounted propane unit requires only half the space and propane used by traditional 10-gallon tank models. Approximately 940 gallons of hot water can be produced from a single 20-pound tank of propane, while the unit itself weighs just 32 pounds. The unit also uses only 1.5 amps of power in normal operation and 3 amps when configured for cold weather protection. The RV-550 features automatic gas modulation, allowing you to self-adjust gas usage by monitoring water flow and temperature. As a result, you will get a more consistent temperature without being affected by the weather outside.

It also helps that this particular water heater is among the easiest to install on the market. In fact, the installation process was routinely praised in customer reviews, which is a rare thing for products like a RV water heater. And once installed, it will heat up your water blazingly fast with its 55,000 BTU power. The 1.5 GPM (gallons per minute) flow rate isn’t a bad touch either and should be able to provide you with a high-quality shower anytime you need it. This unit is also highly energy efficient and works smart as it can self-adjust based on incoming weather conditions. And the last feature to put on the pro column is its low noise operating level.

Atwood GC6AA-10E RV Water Heater

The Atwood GC6AA-10E RV water heater provides the user with some of the best water pressures you will receive from any water heater. As a result, it gives you one of the best shower experiences you can find in an RV. It is also made from a very durable material that has been shown to resist the terrible effects of rust and corrosion. In fact, this product comes with an aluminum rod that acts as an anode rod and protects your water heater for at least 10-15 years.

It has a high BTU input of 8,800 BTUs and a high recovery rate. For the electric element, it can provide a hot water output totaling 11.6 gal / hr on LP and 6.2 gal / hr on electricity. When combined, 17.8 gal / hr is the total recovery rate. The unit gives you more options and flexibility to use one or both items. It weighs 18 pounds and has an overall dimensions of 17 x 15 x 15 inches. This model is one of the lightweight and compact models in its class and fits most RVs, trailers, small homes and mobile homes.

This device will not require a difficult installation process either, as it is easy to install. This is one of the factors to consider when choosing an RV water heater. The unit chosen should be quick and easy to install right out of the box. It uses propane gas and an electric element in the heating water, so it can heat the water quickly without problems. The combination of the two makes this product more effective than the rest of the competition. Plus, you can rest easy when selecting this product as it comes with a two-year manufacturer’s warranty. You can be sure help is available when you have a problem with your water heater.

Camplux 5L 1.32 GPM Portable Outdoor Tankless Propane Water Heater

Camplux 5L 1.32 GPM Portable Outdoor Tankless Propane Water Heater
  • CSA approved portable tankless water heater for US &Canada markets. Lowest water pressure start up just need 3.0 PSI! Also works great with Camplux 12V 1.2GPM water pump.

Camplux is a brand dedicated to making your outdoor life enjoyable. It provides products that make your outdoor life easy and smooth. Camplux Portable Outdoor Tankless Propane Water Heater is another great offering from them. If you are having a van life or camping it is a perfect fit to provide you warm water. On top of that this Portable Outdoor Tankless Propane Water Heater is CSA approved. It is perfect and easy to move a water heating system that would perfectly fit your van. You can set the minimum and maximum heat and it does the job accordingly.

The first tankless water heater on our list is the Complex 5L 1.43 GPM portable outdoor water heater. Complex is a brand that is loved by those outside of them and is careful about proper installation. They have nearly 2 decades of experience in the gas and electricity industry and they aim to create products with a focus on portability, energy saving and innovation.

One of the most interesting features of the complex is that it handles the minimum throughput of the products we have reviewed. It has a GPM of only 1.32, which means you use less water and you don’t have to transport that much. Complex recommends using the ideal SURFLOW 12V water pump for most customers. Ignition is powered by two D batteries.

Heated water protects against excess heat beyond this point has it protects you from burns, you will not be able to heat water like a few other models. Safety is a major concern for the complex, as these radiators have flame cut-off devices. This means that if there is not enough water in the pump, it will stop to prevent the build-up of carbon monoxide. Also, it has a safety stop to protect the oxygen as well as the antifreeze.

Snow protection helps to prevent metal coils from becoming brittle and broken when stored in cold weather. Lack of antifreeze protection is a problem that we have seen in a few of the other models we have reviewed. The product comes with one year warranty in case of any problem. The handle at the top of the complex can be folded. If you do not want to permanently install this water heater in your motorhome, you can discard it and then hang the water heater on a tree or some other solid object. If you think this won’t be enough for you, the Complex also offers the 10L option, which is twice as powerful. It will increase the output power from 34,000 btu / h to 6,000 btu / h to maintain a higher water flow of 2,644 gpm.


Anti-freeze Protection
Easy to install.


Not the hottest

Camplux 5L 1.32 GPM Portable Outdoor Tankless Propane Water Heater is the best RV Water Heaters in 2021

Reliance 6 6 SOMS K 6 Gallon Compact Electric Water Heater”]

Reliance 6 6 SOMS K 6 Gallon Compact Electric Water Heater
  • Ideal for under counter or crawl space installation

If you are looking for a small-sized water heater then this water heater from Reliance would be a great choice. It can be installed pretty easily by the user.

Cold water inflow and hot water outflow mechanisms are on the side of this heater. There is also a pressure relief valve. This valve ensures temperature and pressure protection.

All these unique features make this water heater a great choice for your van. There are so many good reviews about this product on Amazon from the customers.

On the other hand, there are some criticisms about this product as well. Not having a front panel for temperature control is a red flag for some customers. They have pointed it out. The pressure relief valve can be faulty sometimes.

Considering all the good reviews the number of negative reviews is quite low. It takes a very reasonable amount of time for heating the water.


It has a very easy installation.
It comes with six years warranty.
This heater gets power through electricity.
Relief valve for water pressure.


The pressure relief valve may sometimes not work accordingly.

What Makes It Worth a Try

Reliance 6 6 SOMS K 6 Gallon Compact Electric Water Heater is the best Water Heater for Van in 2021

Eccotemp L5 Portable Outdoor Tankless Water Heater

Eccotemp L5 1.5 GPM Portable Outdoor Tankless Water Heater
  • Being Designed and developed in Summerville SC USA, The Eccotemp L5 is the only legal CSA Certified portable tankless water heater on the market that can legally be sold in the US and Canada!

Eccotemp L5 Portable Tankless Water Heater can provide the warm water you need while having a van life. It can provide 1.4 gallons of hot water in a minute! This water heater is designed and developed in Summerville SC USA. Again this is legally CSA certified portable water heater that perfectly fits your van. So it is sold legally in the USA and Canada market. This water heater is so much lightweight and easy to carry. It comes with a compact size. Installing it inside your van is not very difficult to do.

You can choose the power source of this water heater according to your convenience. The dedicated support team is there through live chat and 24/7 self-help desk. Moreover, there comes a manual with it to guide you about using it. With manual and expert technical support it is highly unlikely that you will face any complication. You have the control of adjusting water and gas flow to get your desired temperature.

This portable water heater works with two D batteries, much like the last two products. It has a safety stop that is activated if the device is operated for more than 20 minutes, or tilted more than 45 degrees to ensure that no accidents of any kind occur. It takes a higher 20PSI time to turn on the ignition, but it is still under most of the pumps that people will use and it has rated the hot water output at 1.5 GB.

The shower head provided by Eccotemp lets you choose from a variety of pressure spray settings that suit you perfectly. This is a somewhat improved experience compared to other products. During installation, this radiator includes all the necessary adapters and fittings in the box. It includes one year warranty for the device.


This heater is CSA certified.
It is lightweight so convenient to use in a van or any camping trip.
There is a dedicated support team to help.
The manual is helpful enough to guide a new user.
You can adjust the water and gas pressure according to your convenience.


Failing to set it in the right manner may cause disturbance while using it.

What Makes It Worth a Try

This water heater weighs only 13 lbs and uses liquid propane fuel to heat the water. For your van, it could be a great pick.

Eccotemp L5 Portable Outdoor Tankless Water Heater is the best Water Heater for campervan in 2021

EcoSmart ECO 11 Electric Tankless Water Heater

When you are on the road living in a van looking for your next adventure, you can consider this water heater. This water heater can help you to have the needed hot water.

You can think about adding a garden hose and a propane tank then you can be sure that you will be able to enjoy the hot water no matter where you are.

This Eccotemp water heater can reach the temperature between 50 to 140 degrees Fahrenheit. You can use 2 “D” cell batteries to power up the heater in case there is no electricity available.

The installation process is much easier for a user. The temperature control mechanism is also easy and it is lightweight. So considering all the features of this water heater, it perfectly fits your need while being in a van.

The manual of this water heater comes in a nicely printed paperback book. Also, it is written in several languages to make the installation easier.


It has 9′ CSA approved gas regulator.
This water heater has twenty minutes of automatic safety shutoff timer.
It comes with an easy installation feature.
It offers frustration-free packaging.
It has a Safety Tilt-Switch of 45 degrees.
Easy temperature control.
It has a compact size, so easy to carry.


There might be some leakage issues in case of improper installation.

EcoSmart ECO 11 Electric Tankless Water Heater is one of the best Water Heaters for RV in 2021

Bosch Electric Mini-Tank Water Heater Tronic 3000

Bosch Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon (ES4) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
  • CONVENIENT HOT WATER HEATER: 4 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 13.75 W x 13.75 H x 13.5 D Inches

You can consider having this mini-tank water heater for your van easily. The water gets heated within very less time. This Bosch Electric Mini-Tank Water Heater is available in three compact sizes. You have the option to wall-hung it or keep it floor mounted. It can easily fit your van, kitchen sink, cabinet space, and many other places. It has a very sleek and nice design that doesn’t make it look overwhelming for a small place. It matches with the interior decoration of your house because of the size.

The installation process is also very easy. You just have to tap into the water line, and then you can install the water heater to the predetermined space. So, even when you are not living in your van, you can set it up in the place of your house where you need a hot water supply.


It provides 4 gallons of water that fit anywhere and very much versatile.
Easy to maintain an electric water heater.
This water heater has premium glass-lined material. It ensures a long service life for this heater.
Installed independently.
You get on-demand hot water within a very little time. There is no need for a long wait.
You can hang the water heater to shelf, wall or keep it floor mounted. For the size, it takes very little space.


Leakage may cause for unsystematic use.

What Makes It Worth a Try

It takes very little space and it can be kept easily in any suitable place. All these easy-going features make it a perfect choice. That is why it is one of our top picks.

Best Water Heater Buying Guide

If you are thinking about buying a water heater for your van, you should not buy anything randomly. Buying out of whim can make you suffer later. So, trying to be logical in the beginning is the best option for you.

How to know which one is appropriate for you?

Well, here is our buying guide for you to make the ultimate choice a bit easier. There are some features that you have to notice while buying a water heater for your van.

Light Weight

An ideal heater for the van will be lightweight. It will be very easy to carry in any place. Storing it in the back of the van should be easy.

Easy Installation:

The installation process should be without any complexity. It should not take so much time to install it. A user manual attached is always of great help for the users.

Suitable Size

Before making the buying decision, you have to know the amount of water you require. Based on that choose a size that would perfectly fit that amount of water.


The temperature will be much lower for an ideal water heater for the van. The temperature is supposed to be much lower than home use.

Flow Rate

You have to consider the water flow rate of the water heater that you are going to buy.


A vital aspect to consider while buying a water heater for a van. You have to keep in mind that you may need to spend a good amount of money.

It would cost even more when you are planning to live in your van for months. The average price for such a water heater would be $500-$1000 (approx.).


You will have to live in a little space while living in a van. So the water should not take much space which might make the space even more congested.

Source of Power

Thinking about the power source is also important while living on the go. Mostly, you have three options. Those are electric, battery, and propane-operated heaters.

You have to crucially calculate which one perfectly serves your purpose. For portability, battery and propane-operated heaters are the best.


Make sure your heater is immune to changes in the environment. Other unprecedented calamities might also threaten the protection of the heater. So make sure it survives in tough situations.


When you are living a van life, you are most likely to expect not to have too many things to be worried about. That is why you need to choose the best water heater for van that perfectly fits with your purpose. Try to know about the heaters available in the market and find out all the pros and cons. You can choose from our top picks as well. Try not to be too overwhelmed with information while picking the ideal one for you. Rather just focus on the features that are must to have for your van. But the common features are a perfect size, weight, power source, water heating capacity, price, etc. Pick a suitable water heater for your van to have hassle-free travel experience.

Frequently Asked Questions

How to install a water heater in van?

Installing a tankless water heater in your RV actually involves mounting your selected unit, connecting the gas, water and electricity lines and installing the exhaust duct. However, it should be noted that if you can perform the mentioned steps manually, it is a bit dangerous if you do not do it properly and are not familiar with the whole process. In this case, it would be best to seek help from a qualified and licensed professional installer who is able to comply with local plumbing, electrical, gas and ventilation codes. That way, you don’t end up working with an unwanted installed and unprofessional water heater.

How to turn on a water heater in cameprvan?

You need simple steps to turn on your RV’s water heater. In most cases, this involves testing the unit bypass soup first, after it has flowed into the primary tank of water after opening. Your next choice is to link your RVT to the nearest water price. With an on-board pump, you can start pumping water. This is also a good time to open the hot water faucet. Once lit, you can wait for water to flow through the heating tank line. Make sure it fills the line so that the water heaters are ready to operate.