Wohomen is reader-supported. If you buy from a link, we may earn a commission. Learn More

The 5 Best Propane Tankless Water Heaters (2020)

Are you looking for a heater that is always ready to use hot water and take precautions before disasters from flooded basements?

We cannot finish by enumerating the benefits of owning a propane tankless water heater. Propane tankless water heaters, which allow you to save 20% in-home use, are a compelling choice for reaching hot water at any time. So which one should you choose among the various categories of heaters? We know the stress this shopping will create. That’s why we have listed the best five propane tankless water heaters for you with our review team.

Propane tankless water heaters, which have many uses from small house owners to outdoor use, continue to be the favorite fixture of recent years. Let’s take a look at these products together!


#1 Best Overall: Rinnai Tankless Water Heater

Propane tankless water heater specially produced for mobile home use. –Long-term damage to a unit, A temperature lock, Highly energy efficient, etc.

#2 Best Portable: Foruee Portable Water Heater

The portable propane tankless water heater for those who want a portable water heater suitable for use anywhere. –The detachable showerhead, CSA approval Gas Regulator, Anti-freezing protection, etc.

#3 Best for Outdoor: Camplux Gas Tankless Water Heater

Instant gas water heater for caravan rides camping lovers. – Anti frozen protection, Stainless steel burner, CSA approved gas regulator, etc.

#4 Best for Small House: Eccotemp Propane Water Heater

Gas-fired tankless water heater for small home users. – Horizontal vent kit, Digital temperature display, Electronic ignition system, etc.

#5 Best Budget: Happybuy Propane Hot Water Heater

Inexpensive tankless water heater for users looking for an affordable heater. – Water output and gas control knobs, Lightweight and space-saving, Anti-rust stainless steel, etc.

#1 Best Overall: Rinnai Tankless Water Heater

Who wouldn’t want the comfort of propane tankless water heaters? No matter what time it is, you can live a comfortable life with hot water that you can reach. We will introduce you to a fast heating heater to meet your hot water needs day and night. The Rinnai V65IP Tankless Water Heater, which is at the top of our list, can be the propane tankless water heater. Let’s take a look at its features.

Rinnai V65IP is a lightweight tankless water heater. Thanks to its compact body, it helps you to install it quickly so that you can save space. Thanks to the quality materials used in its structure, you become ready for your heater, which you can use for many years without difficulty assembling. On the other hand, this propane heater provides a WiFi facility that allows you to connect to mobile devices with its smart Control-R option easily. Wherever you are, you can make your hot water ready by clicking remotely. Who knows, maybe you might want to return home and take a shower after a tiring day.

This propane tankless heater has a flow rate of 6.5 GPM. It makes your hot water ready in just 1-2 minutes. Besides, the PVC pipe hose supplied with the device protects by keeping hot water. Thus, even if you take a break, your hot water does not cool down, and you do not have to wait for it to warm up again. It is quite an impressive feature. On the other hand, parts that prevent corrosion in frequent use are included in this device.

Although this device, which provides energy consumption from propane gas, uses more energy than tools that use natural gas, it works effectively. When you want to work faster and more efficiently, it is enough to have their maintenance checked annually. Rinnai V65IP reassures its users with its 10-year warranty covering all heating elements. Also, it provides a 1-year warranty on labor and 60 months on existing components. A device you may like with its features that represent long-term durability in every aspect. In summary, when you’re looking for a propane heater, the Rinnai V65IP can be the right choice. However, if there is a heater to carry with you on your travels, continue reading our article!

What We Like:

  • It has a Control-R mobile app.
  • It uses propane gas and shows efficient performance with it.
  • It includes high warranty options.

What We Don’t Like:

  • It uses high energy.
  • Sometimes, WiFi cannot work.

#2 Best Portable: Foruee Portable Water Heater

Have you ever encountered a portable propane tankless heater before? It is possible to find a device you can take wherever you want and get hot water anywhere. When you search for a tool that you can take with you on your travels, you may encounter many options. But we have a suggestion for you. Get ready to meet this device that ranks second on our list!

The portable propane tank-free water heater heats up so fast that it prepares your hot water in three seconds if you don’t have time to shower in your caravan. Thanks to the particular devices in its structure, if it feels the slightest carbon monoxide in its location, it turns off immediately. Thus, you can prevent the dangers you may encounter. When we take a closer look at its structural features, we see a heat exchanger made of 99% copper. It is a feature that allows you to get the thermal efficiency at the highest level.

It can be resistant to rust and corrosion thanks to its outer surface coating that prevents it from being worn when you use it outdoors. Regardless of your water temperature, you can get the chance to use it safely for many years with this device, which is also protected against heat. On the other hand, with this heater, you can avoid washing your pets with cold water with a hose. While you are refreshing your pet friends without getting sick with the hot water you get at medium temperature, you have the pleasure of feeling the comfort.

As a result, there is also a Foruee shower head with three modes to get with this device. You can make your shower hours enjoyable with your water flow rate set in any mode. Who wouldn’t want a portable water heater? Therefore, it seems possible to have a unique experience with this easy-to-install device that will make your work easier. If you need a tank-free water heater for your outdoor shower, our third recommendation might be for you.

What We Like:

  • It can be easily transported everywhere.
  • It has CSA approved Gas Regulator.
  • It offers a unique shower head that can adjust the water flow.

What We Don’t Like:

  • It shuts down when it reaches a sufficient temperature. – It may not keep hot water.
  • The showerhead can wear out quickly depending on usage.

#3 Best for Outdoor: Camplux Gas Tankless Water Heater

The biggest problem of camping lovers is that they find clean water to take a shower. Is not it? For camping lovers who often have to position them on the lakes or beaches, taking a shower in these waters can cause life-threatening dangers. Instead, an instant gas water heater may be a good option for you. The Camplux 10L, ranked third on our list, can be the best outdoor shower.

Camplux produces 2.64 gallons of hot water per minute to meet your hot water needs in your camping areas. With the help of this device, it becomes easier for you to reach hot water in off-grid areas. The ignition system runs on several D-cell batteries that you need to connect to the propane cylinder. In this way, you can easily carry and mount them for use in your camping area or caravan.

On the other hand, you get a useful model with the showerhead, the necessary adapters, and the gas regulator included in the package. Its eco-friendly mode allows you to save energy in the summer months. Knowing the importance of safety in tankless gas water heaters, Camplux used the automatic shut-off and flame control feature in this model. In this way, it prevents the risk of scalding in hot water. It also includes some system features so that you will not be difficult during the winter months. Namely, the drain plug prevents the ice in the system from freezing, making it easier for you to reach hot water in all seasons.

As a result, Camplux offers the convenience of reaching hot water in all seasons in your campsites and caravans. Thanks to the gas instant water heater, you can use it not only outdoors but also indoors with adequate ventilation. But if you own a small house, a space-saving heater is a better option. For this, continue reading our article!

What We Like:

  • It offers good thermal efficiency.
  • It is a heater that works without electricity. -Works on battery.
  • It saves energy with its extra accessories.

What We Don’t Like:

  • It has a limited working time. -20 minutes.
  • The shower fixture may not be decisive.

#4 Best for Small House: Eccotemp Propane Water Heater

For users with small houses, water heater devices may not be preferred because they take up a lot of space. But the good news is that you can find specific gas-fired tankless water heaters for small house and non-large areas. When you realize this, you may be surprised by the sea of products you will encounter. That’s why we’ve come up with a product recommendation that might be the best for you! Let’s look at its available features!

Eccotemp FVI12-LP offers a tankless water heater model that can also be mounted horizontally and has a slim structure, unlike other models. You can get hot water in a short time thanks to the intense propane flame that it uses to heat the water instantly. What you need to be aware of here is that you have to have a ventilation system that can evacuate propane fumes. Paying attention to this detail, Eccotemp has also added stainless steel grilles to the package content. Thus, when you position it in the right area, you can use it easily.

In addition to all these, this device, a model where you can save energy, can work without noise. It is nothing but the sound of burning gas that you will only hear while it is running. The water flow rate is offered for you to use with two restricted flow showerheads. With this model that provides 2.3 GPM gallons of water per minute, you can obtain water at the temperature you want.

In summary, you do not have any difficulties when you want to save space thanks to this water heater that everyone can use easily. Cold water is not your only option when your home and living spaces are small. You can enjoy access to hot water at any time by choosing the gas-fired tankless water heater with its compact body and different design. If you want to have a heater at more affordable prices, our last suggestion might be for you.

What We Like:

  • It has a structure that can work silently and has a digital display.
  • It does not take up space with its compact and small structure.
  • It offers manual control for temperature and water flow.

What We Don’t Like:

  • It does not offer a lifetime warranty.
  • You must have a ventilation system for fumes.

#5 Best Budget: Happybuy Propane Hot Water Heater

Don’t want to punch a hole in your wallet to have an excellent tankless heater? You are right. When you want to find an affordable tankless heater, you don’t have to compromise your expectations. Because with our recommendation, which is at the end of our list, with a high-performance tankless water heater, this can be very easy. Let’s see what awaits us in the details of this model!

Happybuy offers a more affordable model than other tankless water heaters on the market. In this model, you can obtain up to 16 liters of hot water per minute. The device, which is very generous with its usage area, offers the chance to use it in handwashing, bathroom, sink cleaning, or shower for your pets. Thanks to the LED screen on it, you can easily see the hot water temperature. There are buttons for manually adjusting the water outlet and gas control. It seems like an excellent opportunity to feel in control.

Besides, you can easily install your tank-free water heater with this package from which you will obtain the user manual. In this model, that does not require special skills; all you have to do is determine and mount a suitable area. Wouldn’t a product that you can access hot water at any time represent convenience? Moreover, since it is made of rust-resistant stainless steel, you can use it for many years.

In summary, you can bring comfort to your living spaces with Happybuy, which has a good budget option for tankless water heaters that you want to get good results in one go. You do not have to wait for hours with this model where you can heat the water quickly. Control buttons, which will prevent you from encountering dangerous problems such as scalding, can make your job easier. You can have an excellent tankless water heater with Happybuy, which shows high performance for its price.

What We Like:

  • Easy to adjust thanks to temperature control knobs.
  • It provides long-term use with its safety features and durable structure.
  • It is a lightweight and space-saving heater.

What We Don’t Like:

  • You may need to check outlets regularly.
  • Depending on the usage conditions, the showerhead may be of low quality.


Propane tankless water heaters can provide unlimited hot water that you can reach at any time. We have shared with you the five best propane tankless water heaters we recommend from different categories. But what if you need tips to use a tankless propane heater comfortably? As Wohomen, we have compiled information for you to get maximum efficiency from propane tankless water heaters!

When Installing the Tankless Water Heater

Unlike traditional storage tanks, tankless water heaters have specific needs. Tankless water heaters, which differ from other tank models in plumbing, are mounted at the bottom. You will need additional pipes and labor when switching from tank models to tankless models. Remember! If you do not have enough knowledge and skills in plumbing, you should seek help from plumbers. Otherwise, you may invite fatal danger by incorrectly installing your heater. If you know, it will make your job easier to choose tankless water heaters with a top mounting connection.

For Lifetime Use

Maintenance of water heaters is a critical issue. If your tankless heater takes the water source from the well, there will be large limescale. For this reason, you should wash your heater more than once a year. If it uses mains water, cleaning once every two years will be sufficient. Also, using water softeners makes maintenance easier. When following all steps, a propane tankless water heater is designed to last more than twenty years.

For High-Efficiency Ventilation

Condensing tankless models are designed to allow ventilation through the B- vent hole. In this way, you also save on materials and crafts. If you buy a condensing model, you can also provide ventilation with PVC, CPVC, or polypropylene pipes.

Have Your Gas Providers Check

Tankless propane water heaters need to heat the water very quickly. Therefore, they need a more powerful burner and gas lines—approximately 3/4 inches. When you decide to use a tankless water heater, you should have your existing gas lines verified with a professional contractor. The slightest negligible gas leak or gas line problem will put you and other people around you in danger.

Correct Sizing Helps You Get More Efficiency

You need to pay more attention to the sizing of tankless water heaters than you think. Because water heaters that are not at the right angle and the height of the ground are not positioned correctly will not show the performance you expect. Especially for the desired water temperature setting, you need to give your unit the right angle. To do this, you must calculate the dimensions of your installation and your space comfort well.


What Size Tankless Water Heater Do I Need for a Family of Three?

When purchasing a propane tankless water heater, choosing according to the number of individuals in your home is a perfect move. It would help if you looked at the amount of hot water per person per gallon. In this case, you can get a 50-60 gallon heater for a family of three to four people.

Is Rheem or AO Smith Better?

AO Smith has a warranty of up to 12 years on most models. It also has a wide range of heaters. It offers heater models that can be found for people from all walks of life. Rheem has been producing durable water heaters for the general public for nearly a hundred years. It is suitable for home use with excellent and moderate water heaters that are not very costly.

How Long Does a Tankless Gas Water Heater Last?

When you buy a tankless water heater, most models offer a lifetime warranty of more than 20 years. There are also easily replaceable parts of the tankless water heaters that you can extend their life more. It has been observed that these heaters, which prevent heat losses during waiting, show an excellent efficiency performance as long as they are maintained.


Tankless water heaters are the only devices required when you want to use hot water wherever you want, whenever you want. These devices can use propane gas, as well as electric, battery-powered, or natural gas. Regardless of your preference criteria, it will be sufficient to make a selection suitable for the area you will use for a high-performance tankless water heater that suits your request. The only thing we’d recommend is that no matter how easy it is to install if you don’t have enough knowledge about mounting and setup, you should seek help from the installers. As the Wohomen review team, we have reviewed the five best propane tankless water heaters for you. Our choice was for our first recommendation, the Rinnai V65IP.

So which one will you choose? You can share your valuable comments with us, and you can be a light for other users who want to buy.


Please enter your comment!
Please enter your name here

Share this
Send this to a friend