Best Tankless Gas Water Heater For Outdoors

To bring the same convenience of your hot shower from home, you need the best tankless gas water heater for outdoors. We put together some of the best choices to help you enjoy the outdoors.

This Article Was Last Updated On June 01, 2021

We all know how refreshing that early morning shower can be, but while outdoors camping, hiking, fishing, or any other pursuit miles away from home this is not always an easy task.

Just any portable hot shower equipment may not handle your morning shower needs.  It takes a shower that’s designed to bring together easy portability and performance to offer you that luxurious on-demand hot water anywhere.

best tankless gas water heater-man under a shower

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We understand how much you are looking for that hot morning splash and this list contains many good quality units that will solve your hot water needs so here is our list

Camplux 10L Outdoor Tankless Water Heater


  • It’s a versatile unit for camping, horse cabins, beach, and family adventures
  • Its 2.64GPM output is hands down impressive
  • No electricity need for the ignition
  • At 10L, and with 68,000BTUs/Hr, it’s a good size for the family
  • Comes with several safety functions
  • Made using iron, metal, and copper, it is quite robust


  • It’s quite hefty at 23.6 pounds

My Initial Thoughts: Another unit that is also worth every single penny as far as performance and durability go.

The power of this machine is by far the one thing that stands out. At an incredible 68,000BTU/Hr, this robust unit guarantees instant hot water just about anywhere.

As such,

It’s no wonder this heater can achieve an impressive water pressure of between 3.6 and 110PSI and everything in between, with a hot water output of up to 2.64 gallons per minute.

While this might sound as if the unit takes a lot of energy, the reality is quite far from that, as it is designed to save up to 11.5% of energy thanks to its energy-saving technology. which ensures you can continue to enjoy a hot shower for a longer time.

And when it comes to safety, it doesn’t disappoint too, as it comes with a good number of great features such as anti-freeze protection, as well as flame failure function, and overheating protection.

Even better, it comes with a CSA approved gas regulator as well as the other necessary adapters for installation and use.

Also, you won’t need any electricity with the use of this unit, as it is propane-powered, and uses 2 “D” cell batteries for the ignition.

We Rated This Product 4.3 From 5 Stars

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GASLAND Outdoors 6L Portable Gas Water Heater


  • Made of copper and steel, it’s a tough little unit
  • Comes with a lot of safety features
  • At 15.65 pounds, it’s a lightweight unit that you can transport with ease
  • Comes with a 5-feet hose and an easy-to-read LED display
  • Easy installation, and comes with all the needed adapters and parts
  • The metal handle is strong and durable


  • Heat regulator failing at some times

My Initial Thoughts: For that hot water shower in the morning on any camping trip, this 6L GASLAND portable water heater would make a great choice.

Safety first, it has several functions that keep you safe and everything working fine, which include the flame failure gas supply shut-off, anti-freeze protection, protection against high water temperature at 167-degrees F, as well as overheating protection.

Great performance

Also, the unit is capable of auto decreasing the water pressure if it reaches levels between 2.5 and 110PSI, and you will come to love the high 41,000BTUs per hour output of this unit, which ensures you won’t need to preheat your shower water.

It will perform just fine with low water pressure for start-up at only 2.5 PSI, and it can give out an impressive 1.58 GPM. But what really caught our eye is how adjustable the water flow and heat are.

It’s also a compact, lightweight unit that you can carry and install (but it also has a mounting bracket that you can use to hang it almost anywhere) with ease, and a very versatile one at that, as you can also use it for just about any outdoor adventure. 

The other benefits here include this unit’s 11.5 percent energy-efficient technology with advanced combustion tech of the heat exchanger and main burner, reducing gas burning and noise.

We Rated This Product 4.4 From 5 Stars

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Camplux 5L 1.32 GPM Outdoor Propane Tankless Water Heater


  • It’s a lightweight unit that you can move and store easily
  • Strong and very durable too
  • A wide range of temperature to meet your needs
  • An anti-freeze protection for use even during extreme temperatures
  • Oxygen depletion sensor with a safety shut-off function


  • The only downside is that it doesn’t come with the 4 lithium batteries required

My Initial Thoughts: Next on this list is a unit built with your needs for on-demand hot water at heart.

As such, it’s no wonder it comes with such great features as an anti-freeze protection design that allows you to enjoy hot morning showers even in freezing temperatures.

It also boasts a safety-shut off function that kicks in once oxygen depletion is detected, which is very helpful.

Energy-saving technology

This is very while living outdoors, but, that doesn’t compromise the performance too much since this unit still delivers 1.32GPM of hot water output.

Still, on performance, this unit is capable of operating at a 0.4PSI pressure with 28,000BTUs per hour output, but the ideal low pressure operating range is 3.0 to 110.0PSI.

Weighing only 14.11 pounds, it’s a lightweight unit that you can move around and store with ease. It delivers a great deal of performance for a unit of this size.

Also, it comes with just about everything you need, including the unit itself, a showerhead and hose, and a CSA regulator as well as the necessary installation hardware.

The temperature range is quite good also, with the minimum temperature at 46.4 degrees F and 114.8 degrees F maximum; you can set it where it feels warm enough for you.

We Rated This Product 4.2 From 5 Stars

Eccotemp L5 Tankless Gas Water Heater


  • Comes with a long 6 feet hose
  • Robust 50PSI performance
  • Made of metal, it is a robust and durable tank
  • At 14 pounds, it is lightweight enough so you can move it around easily
  • Comes with everything you need; the tankless water heater, Eccoflo pump, and strainer
  • Its battery-igniter design allows you to use it even in remote camps with no power


  • Issues with leakages due to loose joints, you’ll need gaskets to fix that

My Initial Thoughts: Here is one portable hot shower that is feature-rich with just about anything you would want for a satisfactory morning shower.

The first thing you’ll notice is the robust 12-volt pump that this shower comes with, which is capable of delivering up to 50PSI units of pressure. This is enough pressure to sustain 2.9 gallons per minute (GPM) output.

We also loved

The long 6 feet shower hose that Eccotemp has added to this shower. It’s not only long enough to offer you all the flexibility you need, but it also turns out to be made of stainless steel material, which makes it both strong and durable.

Setting up this shower is quite fast and effortless, as all you have to do is attach a hose and preferably, a 20 lb propane tank, and you are all set, which brings us to the other point worth noting; this is a propane liquid powered shower.

Does this machine meet your needs? this unit proves to be versatile enough for use in the outdoors and at home for a shower, washing your pets, horse, or even your car.

And with the ability to reach temperatures from 50 to 140 degrees F and everything in between, you can bet that you’ll have sufficient hot water that best matches your liking or needs.

We Rated This Product 4.2 From 5 Stars

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EZ 101 Tankless Gas Water Heater


  • Enough controls with 3 dials
  • Very lightweight unit at only 14 pounds
  • Ideal ventilation keeps it cool
  • Auto-ignition design helps save a lot of energy
  • A simple design makes it easy to store and transport


  • It would be great if this unit came with a propane regulator

My Initial Thoughts: This hot water shower from EZ comes with all the features you would expect from a unit its size, if not more.

We liked the simple design, which makes it easy to use as well as install. But what makes this design worth a hard look is that it also allows this unit to be unobtrusive if you install it within the working or living space.

The propane-powered design of this unit, which means you won’t need any electrical plug-in, thus making it a perfect choice for outdoor use. In fact, it works with the standard propane take that you use with your barbecue grills.

Another impressive element

Weighing only 14lbs, it is a lightweight unit that you can move around and store with ease, not to mention that this also makes the portability of this shower just as easy.

And, it comes with up to three dials, one for flame adjustment, one for water flow setting and one turns on different outlet jets; one or two or three

The other thing that makes this unit really worth your money is the ideal ventilation, which pulls air from all around it, thus helping keep it cool to the touch.

Not forgetting, it comes with an automatic ignition that further allows saving a lot of energy. All it uses for this is two, durable “D” cells. But you will need to pick those up, as they don’t come included in the package.

We Rated This Product 3.8 From 5 Stars 

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Coleman Hot Water on Demand H2Oasis Portable Water Heater


  • Comes with a high power submersible electric pump
  • There’s also a 12V charger, which you can use on your car outlet
  • Heats water very fast in a matter of 30 seconds
  • Comes with a mesh storage bag and weighs 18.01 pounds
  • A wide range of heat options to choose from


  • Its female quick connect part is plastic, which is not as robust as a metal one
  • Coleman doesn’t always get it right, this one has a large number of negative reviews

My Initial Thoughts: This is a brand popular among outdoor lovers, and although this unit might not be as great as some of the other options we’ve looked at, it still has what it takes to win itself a slot here.

Perhaps the first thing you’ll notice is the wide range of water temperature, ranging from 54 degrees F and all the way to a max of 125 degrees F, it all comes down to the temperature level that best suits your needs at any time.

Design features

It also heats water quite fast, thanks to the tankless water heater design that ensures you can start enjoying that hot shower in a matter of just 30 seconds.

Also worth mentioning is the unit comes with a good shower head as well as a 6-foot silicone hose giving you plenty of reach.

Versatility is the other factor that makes this heater worth giving a try, as you can use it for a whole lot of other activities besides a hot shower such as washing the dishes, preparing hot beverages, and much more.

For super-easy use, you have an Instastart ignition, which only takes the push of a button, also, setting your desired temperature is just as easy, since all you have to do is dial in the unit so it shows on the LED display.

We Rated This Product 3.2 From 5 Stars

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best tankless gas water heater-person under outside shower

My Top Picks

Best Tankless Gas Water Heater – Camplux 5L Outdoor Propane Tankless Water Heater

Best High BTU Portable Hot Shower – Camplux 10L Outdoor Tankless Water Heater

Best For Energy Efficiency – GASLAND Outdoors 6L Portable Gas Water Heater

Questions and Answers

Question: How long does it take to warm water?

Answer: This comes down to the model you go for, some units will have your water hot enough as fast as in a few seconds while others take several minutes. Make sure to decide depending on what your personal needs are.

Question: Can I purchase additional components?

Answers: Some portable hot showers don’t come with all the components included in the package, so you might need to pick up some.

However, if in case a component is broken, the best thing to do is contact the manufacturer to find out if they have a replacement before heading for the store down the road to pick one.

Question: Does it hold water?

Answer: This will depend on the design of the unit you are after. Some come with a water reservoir, while others do not.

However, it’s worth keeping in mind that most of these units are “tankless”, which means you will need to have a water source, and all they do is heat it.  

Question: Is there an inbuilt filter for the water?

Answer: Well, some of the units we’ve listed here come with filters, but that’s not to say that all of them do, it’s thus best to check carefully if the one you have your eyes set on comes with this feature.

Also, keep in mind that a filter only holds back the debris, but it won’t clean any chemicals or bacteria in the water.

 Buyers Guide To Choosing The Best Tankless Gas Water Heater

Now that you have been exposed to some of the best options around and some of the ins and outs of portable hot showers, here are some other things you need to be keen on when buying.

The material

It’s by far one of the most important factors you need to consider when making your final decision since some materials are not ideal when it comes to handling hot water.

Also, such materials as plastic on the components of these units could be prone to breaking easily. So it’s advisable to look for anti-rust material if you want to get the best out of your purchase long-term.


Another important aspect that you need to be keen on is just how powerful the unit is, and this usually comes down to the BTU/Hr that it can deliver.

This will determine how fast it can get the water hot, which could mean all the difference when it comes to saving those precious minutes in the morning. Also, check the level of gallons per minute that your shower of choice can deliver.

Weight and portability

These units are ideal for car campers, but other campers could also make the most of them. Whichever your case, however, you need to ensure you get a unit that you can move around or transport with ease.

The more lightweight the better, and thankfully, most of them are quite lightweight enough. Also, such features as a compact design and a carry bag also come in very handy, so yeah, be on the lookout for those too.

These are not really suited for overnight stays outdoors these units are for staying in one place for several days. A handy small item for overnight stays somewhere and you want a hot shower is a solar-powered shower pack like the Advanced Elements Solar Shower

Ease of installation

While portable hot showers make a great addition to your camping fun and convenience, the installation turns out to be one of the things that hold back most people.

A unit that is complicated, or doesn’t come with all the parts and components necessary for the installation isn’t the best bet.

And if the installation is too complicated and you are not a handy person, you might be in for some serious frustration. It’s best to read a few reviews to find out how others have fared with this part.


If you’ve had it with cheap and crappy knock offs when buying portable hot water showers, then it’s time to put an end to that with a reliable unit that offers the value you pay for.

This list has all the units you want to give your family and friends that hot morning shower when in the outdoors. And since you’ve also learned what makes a good portable hot water shower and what to expect out of your unit, you can shop with confidence.

Get your ideal shower and bring back the fun to your outdoor adventure.

If you have any more questions about the best tankless gas water heater, I’ll be more than happy to answer them in the comments section below.

Remember! Leave it cleaner than you found it, only footprints not rubbish.


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