An outdoor tankless water heater can certainly make your life easier. You can install it by the poolside, outside your home, or even in the RV.

An outdoor tankless water heater has to handle the weather. Despite that, it has to offer you hot water quickly. To choose the correct outdoor tankless water heater, my list of top 10 options below will help you out. There are hundreds of such options, and therefore instead of going through every one of those options, you can refer my top 10 list below. Doing so will help you choose the best outdoor tankless water heater quickly.

1. Gasland Tankless Water Heater

With 2 different color options, you have some choice when you’re going with this outdoor tankless water heater. Also, it can provide you with pressure between 2.5 psi to 110 psi. The heater can heat water up to 167°F.

The device protection and anti-freezing protection ensures that the heater is highly durable.

Moreover, it has an auto-shutdown gas supply mechanism as well. That can help you avoid any flameout.

It is perfect for outdoor use due to the lightweight and portable design. The maximum power output of 41,000 Btu per hour means that you get consistent hot water quite easily.

The flow rate on offer is 1.58 gallons per minute. Also, the energy-saving design means that you need not worry about propane consumption either.

Moreover, the aesthetically pleasing design helps it stand out. You can use it not only for the outdoor of your home but also in your RV.

Thus, with numerous features, you cannot go wrong with this exterior tankless water heater.

2. EZ Camp Champ 1.8 GPM Outdoor Tankless Water Heater

With the flow rate of 1.8 gallons per minute, you cannot go wrong with this outdoor tankless water heater. Also, the propane-powered design means that it is economical to operate as well.

Additionally, when you look at the design, it is a modular design. Installing it is easy.

You get gas regulator and garden hose fitting with it. The fittings ensure that you can use it for a variety of applications.

With the help of no standby loss or recovery time, you can use it consistently. Due to this reason, you can use it for numerous applications.

The utterly safe design means that you need not worry about any electrical faults. Moreover, it is suitable for temporary as well as permanent structures. Due to the same, it is versatile.

The installation takes just 10 minutes. That is why you should go for it.

If you’re looking for a propane-powered outdoor tankless water heater, you should consider this option.

3. Camplux 5L 1.32 GPM Tankless Water Heater

The flow rate of this outdoor tankless water heater is 1.2 gallons per minute. It can raise the temperature of water up to 114.8°F. The minimum temperature rise is up to 46.4°F.

The compact size ensures that the installation is easy. You get a folding handle along with it. Thus you can use it easily.

Moreover, you can use it outdoors, which is another reason why you go for it. The flame failure device, as well as anti-freezing protection, means that it is entirely safe. In case of oxygen depletion as well, it will shut down on its own.

The flow rate of 1.32 gallons per minute does not disappoint. The energy-saving technology means that you can use it consistently without any worry.

Since it is propane powered, you need not worry about fuel consumption either.

The utterly safe construction is the reason why it is on my list.

4. Eccotemp Outdoor 6.0 GPM Tankless Water Heater

Do you prefer an outdoor tankless water heater with a higher capacity?

If so, you should consider this option. The flow rate which it supports is 6 gallons per minute.

The natural gas-powered design ensures that it will heat the water pretty quickly. It can raise the temperature of the water by 38°F.

The heat which it can generate is up to 150,000 Btu. That is why it is much better than other outdoor tankless water heaters.

The CSA certified design means that it is incredibly safe to use. Also, the outgoing water temperature sensor ensures that you get the precise temperature.

The long power cord means that powering it is easy. The digital display ensures that you can monitor the temperature of the water at the output quite easily.

Moreover, it is suitable for personal as well as commercial applications.

The excellent flow rate is one of the primary reasons why you should go for it.

5. Eccotemp L5 Tankless Water Heater

The CSA certified design is the highlight of this tankless water heater. The lightweight design ensures that installing it is easy.

Moreover, it is easy to carry around. You can use it in the RV’s, as well as other temporary structures. Using it by the poolside is also possible.

Moreover, it comes along with a 20 lbs liquid propane tank. It ensures you will not have to refill it with propane again and again.

The flow rate of 1.5 gallons per minute does not disappoint. Moreover, it can provide water pressure of as low as 20 psi. It can provide you with a water temperature between 50°F to 140°F.

You can adjust the gas and water flow, which allows you to get the temperature you want. Moreover, both dials are easy to operate. You can customize the fuel output as well.

The customization of the fuel output ensures that you will not have to worry about fuel consumption either.

You get a shower handle along with it. There is also a garden hose adopter. The instruction manual lets you know how you can use it right away.

Thus, if you’re looking for an economical outdoor tankless water heater, you should go with this one.

6. Happybuy 18L Propane Water Heater

The 4.8 GPM capacity of this tankless water heater makes it a good choice. The steel tube design makes it durable.

Moreover, the gas-based water heater means that it is economical to operate. There is a low water pressure start-up function. That allows you to get hot water quite easily. The anti-freezing design and energy-saving design is another reason to buy it. It incorporates various other safety features as well.

The LED screen ensures that you can easily monitor the settings. Moreover, the stainless steel body does not disappoint.

The overheat protection ensures that it automatically shuts itself down if the water is above 75°C.

The energy-saving design is another reason why you should go for it. The compact design means that it is suitable for RVs as well as outdoor structures.

The liquefied propane gas can power it easily.

With so many different safety features on offer, you cannot go wrong with it.

7. Eccotemp 45H-NG Outdoor 6.8 Tankless Water Heater

This natural gas-powered outdoor tankless water has a flow rate of 6.8 gallons per minute. The natural gas-powered design means that you can use it consistently without any worry. It is energy efficient, which is another advantage.

The CSA certification means that it is entirely safe to use.

The installation is safe and easy. It does not require any venting, which makes it convenient.

The outdoor installation means that you can install it in any space.

With the help of the temperature and pressure relief valve, you can control the water pressure and temperature quite easily.

The digital remote control means that controlling it is easy. You get the installation hardware along with it, which is another reason to go for it.

Moreover, the detailed instruction manual allows you to install it in an instant.

The high flow rate and natural gas-powered design makes this tankless outdoor water heater a good choice.

8. thermomate ZERO16 4.23 GPM Propane Tankeless Gas Water Heater

The 4.23 GPM flowrate of this propane tankless water heater makes it a good choice. It is perfect for outdoor surroundings.

At the start, the pressure which it offers is 0.7 psi. You get two magnetic water flow sensors along with it. These allow you to control the water pressure quite easily.

Moreover, the flameout protection, anti-freezing protection, and other such safety measures make it one of the safest outside tankless water heaters you can go with.

You get detailed installation hardware, which is another reason to buy it. The heat which it can produce is 109,000 Btu per hour.

The dimensions are 25.6” x 7.5” x 15.7”.

With manual water temperature control, it becomes easy for you to get the desired temperature. The digital display is another advantage.

Whichever way you look at it, this outdoor tankless water heater does not disappoint.

9. AQUAH Outdoor Tankless Water Heater

The flow rate of 2.7 gallons per minute and the compact size makes this outdoor tankless water heater a good choice. You will not have to go for any bulky water heater.

The electric pulse ignition means that the start-up is fast.

The 85% thermal efficiency certainly reduces the liquefied gas, which it needs to heat the water. It can increase the water temperature by 45 degrees Fahrenheit.

The stainless steel rain cap means that you can install it outdoors without any worry. You get essential accessories to install it easily. Thus, if you’re looking for easy to use outside tankless water heater, you should go with this one.

10. Marey GA26OLP Liquid Propane tankless Water Heater

How about an outdoor tankless water heater that can generate 180,000 Btu of heat?

If that meets your requirement, you should consider this option. The propane-powered design means that it is easy for you to use it consistently.

Moreover, it allows you to save water as well as energy.

Moreover, the smart design means that you will not have to worry about replacing it anytime soon. The anti-UV design is another reason why you should go for it. The anti-UV design makes it perfect for outdoor use. There is a safety feature like anti-freezing on offer as well. In a nutshell, irrespective of the season, it will not break down.

It is easy to install. The IPX4 waterproof rating certainly makes it a good choice.

The CSA certified design makes it completely safe for use. You get detailed product manual.

Whichever factor you judge it on, this tankless water heater outdoor does not disappoint.

Rather than comparing the numerous options for outdoor tankless water heaters, you have to look at these 10. To help you choose between these 10 water heaters, I will share a buying guide below.

Outdoor tankless water heater buying guide

The buying guide covers the parameters which you should compare these exterior tankless water heaters on.

Things to consider before buying an outdoor tankless water heater:

The parameters which you should keep in mind while comparing outdoor tankless water heaters include:

• Flowrate:

For personal applications, a flow rate of over 2 GPM is good enough. For commercial applications, a flow rate of over 4 GPM is good enough. The flow rate is a double-edged sword. If the flow rate is high, the water consumption will be higher as well. That is why you have to find a balance.

• Control mechanism:

You have to determine whether it offers a standard control panel, remote control, or a touchscreen control panel. The control panel should be self-explanatory. Only then you can operate it.

• Safety mechanism:

You have to look at the safety mechanisms on offer. It should have overheating protection, overcurrent protection, and so on.

• Fuel:

It can be electric power, propane-powered, or natural gas-powered. You have to decide on the fuel which you prefer.

Once you compare outdoor tankless water heaters on these 4 parameters, choosing from the list of 10 above is easy.

Now, I will share with you answers to some FAQs regarding such water heaters.

FAQ

Can you install a tankless water heater outside?

Yes, you can install a tankless water heater outside. The 10 options above are perfect for outdoor use.

Can you install a tankless water heater anywhere?

Tankless water heater needs proper air circulation. As long as there is proper air circulation you can install it anywhere like outside walls, basement, attic.

How do I keep my tankless water heater from freezing outside?

There are a few tips to follow to prevent tankless water heaters from freezing outside. These are:

-Use a recirculation system in conjunction
-Insulate the tankless water heater
-Always keep a trickle of water running
-Install them in a comparatively warmer place
-Drain off the water heater completely when recirculation or running trickle

Can an outdoor tankless water heater be installed in an attic?

Yes, you can install such water heater in an attic, but only when proper combustion air is provided. If there is improper air circulation, the tankless water heater might not function properly.

Instead of going through hundreds of options to pick the best outdoor tankless water heater, the list of 10 above will suffice. You can use the buying guide to choose from this list.