Best Tankless Water Heater For RV (Propane & Electric)

Being an adventurous person who loves going out on long tours and doing activities like fishing, hiking and biking will surely require a home-comfort everywhere you be.

You RV is the place where you will feel like home while doing all your adventurous stuff wherever you want.

In your RV you will definitely need some good amount of hot water at the end of the day, and the standard water heaters could not really fulfill your needs, you will definitely have to choose a better option and that is the Tankless Water Heater.

Having the Tankless Water Heater with you in your RV is as necessary as having excellent tires of your RV.

Well, there are many low-quality Water Heaters that can really disappoint you, but there’s also a huge number of excellent quality Tankless water heaters that will make it hard for you to choose one.

All you have to do is a bit of research on tank less water heaters and get some knowledge of the product, but wait, you don’t even have to do that as we have done this for you.

Here, we are going to discuss about the quality, features and specifications of this product as well as some of the best units in the market out there so you don’t have to worry much for choosing the best one for your RV after reading our review. Before we proceed let’s just have a look what it actually is and how does it work:

Tankless RV heaters and their working method:

  • The RV tankless water heater is different from the one we normally use in our homes to heat the water, as we know the ones in our homes have big tanks with them and we can not definitely take the tank with us when going out for a trip on our RV. So the tankless water heaters that are easily available in the market in different size, let us enjoy the same comfort as home, outside of the home. These units provide us direct access to hot water without storing it anywhere so we don’t have to deal with such complications and have a cozy and luxurious trip.
  • These heaters have a heating unit that operates using electricity or gas and pipes inside them, whenever you tap on the hot water tap, the sensors will guess and the pipes will be heated, the cold water will convert into hot while passing through the heated pipes and then unit. This is the process by which these units will provide you and your family an easy and endless access to hot water for a comfortable home like environment.

Best Propane Tankless Water Heater For RV

1: Camplux 5L Portable Propane Tankless Water Heater

Best Electric Tankless Water Heater For RV

Camplux portable tankless water heater at a Glance

Brand:          Camplux

Weight:        14.11 Pounds

Colour:           White   

For all the RV owners with families or people who need a lot of hot water when having a trip with your RV, the Camplux Portable Propane Tankless Water Heater is the best option i would suggest.

This is a unit that operates on a very low energy as well as it requires a very low pressure of water to operate.

When there’s a low availability of hot water, this is the best option to go for.

This is very convenient unit with a folding handle that allows it to be easily set anywhere outdoors.

It also comes with a regulator having two knobs, first one to control the flow rate and the other one that helps controlling the heat.

As it runs using the propane so you can surely expect it run without using electricity.

All and all, a unit with capacity of giving almost 1.32 gallons hot water per minute that too using a low amount of energy is a must go for.

  • Can operate on low Water pressure (3.0 to~110.0 PSI)
  • Has an Oxygen Depletion Sensor for protection
  • Operates using very low amount of energy
  • Can be installed outdoors and indoors easily
  • Allows a custom control for heat and flow rate
  • Doesn’t have a proper draining system

2: Precision Temp RV-550 Tankless Water Heater

Best Propane Tankless Water Heater For RV

Precision Temp Tankless Water Heater at a Glance:

Brand:      PrecisionTqemp

Weight:    32 Pounds

Colour:       White

When looking for the efficiency and reliability all at same time, this specifically designed unit for RVs, cabins, mobile washing services and tiny houses is another excellent performer in the industry of Tankless Water heaters. This unit is designed in a manner that you can keep it anywhere in a small place it is not going bother you because it comes in a small and compact size.

There is one more impressive thing to mention that its weight is lighter than the other standard water heaters which makes it an easy to manage unit. It also doesn’t require any kind of complicated installing technologies and it is very efficient which can help you in saving on the energy cost as well.

It also comes with the technology that makes it operate quietly and efficiently and another best feature of the product is that it will automatically adjust the gas usage according to incoming water flow and the water temperature.

  • Does not require much space
  • Designed specifically for RVs, trailers and small houses
  • Uses very less propane
  • Proven VariFlame Technology control system
  • Price is a bit high

3: Excel Tankless Gas Water Heater

Best Propane Tankless Water Heater For RV

Excel Tankless Gas Water Heater at a Glance

Brand:     Excel

Weight:   20 Pounds

Colour:    White

You might also want to check the Excel Tankless Gas Water Heater if you are trying find a reliable unit. The Excel tankless gas water heater is one of the most efficient Heater in the market out there. The technology it comes with, allows it to start on a very low water pressure i.e 2-PSI water pressure or 120 PSI maximum. As it doesn’t require a high pressure so it definitely does not need a water pump as the old ones in the market.

Whenever you need to buy a water heater for any place like your Camper, Recreational Vehicle, mobile home or a tiny home you must go and check this one as it offers a quick hot water supply because of the great technology used to make it. It only supplies hot water when you open the hot water tap so it can help you save on both your water and the heating cost.

If we talk about the design, it has got an elegant design as well, that will allow you to fix it anywhere your kitchen or laundry room without any kind of hesitation.Now, let’s talk about the most amazing features it has, yes, it as a vent-free unit that makes the installation for it way easier than many other ones.

It will also save your money because it does not need any special plumbing to install it or to install any duct and flue as it has got the Oxygen Depletion Safety Shut-off.

  • Does not require any special plumbing
  • Does not require a pressure pump
  • Comes with vent-free technology
  • Comes with lifetime warranty
  • Water and energy saving unit
  • It can only be used at a single point at once

4: Marey Power Tankless Water Heater

Propane Tankless Water Heater For RV

Marey Power Tankless water Heater at a Glance

Brand:         Marey

Weight:       21 Pounds

Color:          Silver

Let’s check it out, another one of the best Tankless water heaters, the Marey Propane Gas Water Heater.

This unit comes in a beautiful and compact design that allows you to set it anywhere easily. This is the best one for your moving homes like recreational vehicles, camper, trailers etc. As it comes from a well known and well reputed company, it is made with almost all the good facilities for comfort of its customers.

The unit saves almost up to 60% of the bills of water heating while providing an endless access to hot water whenever needed. The company ensures the quality of the product as it is rustproof and no water will leak from it due to the best material used.

Having an efficiency level of 87%, the unit gives you hot water just in seconds.

No complicated installment materials needed whiles installing the unit, you only need a 2-D cell battery and a venting. Moreover, the unit doesn’t need to be connected to the electricity and its compact and light weight design saves space for you and can easily set up in a small place.

  • Up to 60% energy saving
  • Up to 87% Efficiency level
  • Endless hot water just in seconds
  • Compact and light weight
  • No need of electricity to operate
  • Might not be useful for apartment homes

5: Eccotemp L10 Portable Tankless Water Heater

Best Propane Tankless Water Heater For RV

Eccotemp L10 Portable Tankless Water Heater at a Glance

Brand:      Eccotemp

Weight:    27 Pounds

Colour:     White

This unit from Eccotemp is another best option in the list to install anywhere outdoor such as your Recreational vehicle or any cabins. The elegantly designed tankless heater has got a stainless steel removeable rain cap as an addition. It operates on the liquid propane and works seamlessly with any type of showerhead or hose.

It comes with the rain cap, regulator and the basic installation accessories whereas the showerhead and hose can be easily bought from the market. The company has designed it in a perfect way to make it easy to set up and use product to facilitate the customers.

Also, it has got manual water temperature controls that you can set according to the needs and can change whenever needed. All and all, the internal and external design of this unit is perfectly fine to take it with you for a comfortable outdoor tour, it will not let you feel worried about your hot water needs at any point.

  • Removeable Weather-proof rain cap
  • An easy to install and use unit
  • 20 minutes automatic safety Shut-off
  • Perfect for outdoor Installation
  • Heating box is a bit heavy
Now let's move on to some electric water heaters

Best Electric Tankless Water Heater For RV

6: EcoSmart ECO 11 Electric Tankless Water Heater

Best Electric Tankless Water Heater For RV

EcoSmart Electric Tankless Water Heater at a Glance

Brand:       EcoSmart

Weight:     6.5 Pounds

Colour:      White

EcoSmart is one of the reliable and most talked about brand in the market producing Tankless Water Heaters with best quality. are going to have a look at one of their products EcoSmart Eco 11Electric Tankless Water Heater, the ideal one for small places like apartments, RVs or any small places.

This unit comes with an impressive life time warranty. The patented self-modulating technology allows the unit to control the energy use according to the conditions and it can heat 2 gallons of water per minute.

Moreover, it can be used for single or multiple applications according to the needs, such as it can handle two sinks at the same time in warm conditions and impressively two sinks and a shower all at same time in the colder conditions. With this water heater, the company claims that you can save 50% of your energy cost as it only runs when you need hot water and it also cuts the heat loss.

When it comes to the look of the unit, the wall-mounted design of this heater helps you to save the floor space as well.

  • Patented Self-Modulating Technology
  • Saves up to 60% on water heating cost
  • Can be used for multiple applications
  • Comes with a life time Warranty
  • A bit difficult to install

7: Stiebel Eltron Tankless Point-of-use Electric Water Heater

Best Electric Tankless Water Heater For RV

Stiebel Eltron Tankless Electric Water Heater at a Glance

Brand:      Stiebel

Weight:    4.6 Pounds

Colour:     White

When talking about all the good brands out there that are selling quality of water Heater we cannot forget Stiebel. The Stiebel Eltron point-of-use is one of the best water Heater we have seen in the market. It seems to be very much energy efficient compared to the storage type heaters as it consumes almost 50% less energy while doing its job very well.

It comes with a technology that never let it fail or dry fires. For instant hot water access this unit is one of the best options out there and its available in many difference sizes so you have a choice to choose one according to your needs.It has also got a resettable safety high limit switch. This unit is easy to use and easy to manage having comparitively low installation costs as compared to the tank type units.

All the DHS of this unit are controlled hydraulically that means it will not make any loud sounds that irritate you and will perform its operations very quietly. The heater is made with the copper that ensures its reliability.

As well as there is a custom setting for the temperature, you can set the temperature knob anywhere you want and can change it any time when desired.Also there is a smart microprocessor technology is used to monitor the from the sensors that are used on the flow rate and temperature rate.

  • Less power usage up to 50%
  • Hydraulically controlled to operate quietly
  • Re settable safety high limit switch
  • Very low installation costs
  • Doesn’t work for more than one application at a time

Things to keep in mind when buying a Tankless Water Heater for RV:

When you are going to buy a Tankless Water Heater you definitely know that it has more benefits than the normal one such as it saves the energy costs and takes low space etc. But this is not enough to go and buy any unit from the market, you must know your needs and the best suitable unit for you as well as you have to choose a quality product.

So here are some of the essential things that you should keep in mind when buying a Tankless Water Heater.

  • Your Water Usage:

Before buying a tankless water heater, you must have an idea of how much water do you consume. This will help you choose a better size of heater for your needs.

  • Water Flow Rate:

You should have an estimate about the water flow rate, it means that how much water do you need at once, like if you are buying it to use for showering you will definitely need a good amount of water consistently, so you should choose a Tankless Water heater keeping in mind you desired water flow rate and the capacity of the Heater.

  • Price:

One of the main thing to consider is the price of the Tankless Water Heater, though you may have a lot of money but it doesn’t mean you should spend it anywhere, so if you are planing a long time trip in you Recreation Vehicle, as a rough idea, a quality Tankless Water Heater should not cost you more than a 1000$.

  • Place to set:

This is the main thing for a trip in your RV that where to set anything you take with you, so you should first consider how much space you can give to the Water Heater in your RV then you should go for buying that will take less space and be easy to move anywhere, this is going to help you a lot.

  • Power source:

One of the most essential things to know is that what kind of power source you can easily give to your tankless water heater.

In this matter, you can choose between three options that are:

  1. The Battery
  2. Propene-operated
  3. Electric

Just figure out what power source will be suitable for you and buy the one that consumes very less power to operate.


Is it good to install the tankless heater under the sink?

There is no bad to install in under the RV sink. It is actually a better choice to do so, as you will not have to do any separate wiring to connect it to water source and you will have a more instant access to the water.

Is it possible to convert normal RV water heater to a tankless water heater?

Yes, it is possible and it is good if you are planning to convert to a tankless heater as the tankless heaters are way more efficient and cost saving than the normal ones. Only thing you have to do is to be careful in whole process such as choosing the right tools, choosing the right heater and estimating the overall cost of the process.

Can I keep the Tankless water heater on all the time?

Yes, you can keep the water heater on all the time as it just like a normal heater that you use in your home, but to save the cost of electricity you can turn it off when you don’t need the hot water.


So, buying a Tankless Water Heater for your RV is not that overwhelming if you know the essentials to pick a good one. At the end all that matters is your comfort so make sure you are choosing the right one that will be serving for a long time with not making you feel uncomfortable in any way. We hope that you must have liked our review about the best products and it has given you the right information. We would like to thank you for reading our article.

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