7 Best Outdoor Propane Tankless Water Heaters In 2022

It is traumatic to wash your face or take a shower with chilled water in winter. That’s why; the best outdoor propane tankless water heater is a must! 

The market is flooded with both tank-style and tankless devices, so picking the right unit can be challenging. Although standard water heating systems are still very popular, state-of-the-art tankless heaters could provide numerous benefits. 

They are not only a fantastic choice for modern, energy-saving-conscious families. They are also an impeccable option for individuals living off the grid and those having a wonderful time mesmerizing outdoors. 

With the best Rinnai outdoor propane tankless water heater, you will never run out of warm water or worry about hefty utility bills. Gas-powered units are highly efficient. But if you are located in a place where natural gas is unavailable, propane offers an inexpensive and flexible substitute. 

In this guide, we’re going to share our top 7 picks for the best tankless outdoor propane water heater for the money. We created this list based on various features, such as max GPM, price, BTUs, consumer rating, energy-efficiency rating, etc.

What Is The Best Outdoor Tankless Propane Water Heater?

An outdoor device heats water as it flows through and is exclusively designed for outdoor deployment. The biggest advantage of these units is that they deliver nonstop hot water, unlike tank-style models. 

They are also extremely efficient, ranging from 80% to 99% efficient. Furthermore, they use copper heat exchangers that swiftly heat the water as it travels through the machine and whenever you need it. 

When you deploy it outdoors, a venting system is not required because it is already installed outdoors. The best locations to mount these appliances are in the garage or basement. But the outdoors ones are anticipated to endure the elements and freezing temperatures.

7 Best Outdoor Propane Tankless Water Heater

1. Eccotemp L5 1.5 GPM Portable Outdoor Tankless Water Heater – Best Overall

Eccotemp L5 1.5 GPM water heater is an outstanding choice for folks who want to enjoy hot showers whenever they are traveling. You can wake up to a magnificent morning in campsites, not worrying about the cold showers. 

It generates 1.5 GPM at up to 37,500 BTUs and has a 20-pound propane tank that is sufficient to provide you with perfectly warm water for many days outside your residence. 

It has a UEF of 0.8 and straightforward user controls. This amazing machine boasts two separate knobs for regulating water temperature and fuel disbursement. 

You can effortlessly increase the temperature to 140 degrees Fahrenheit, though 110 degrees Fahrenheit is comfortable for many people. 

It can create hot water with a lower water pressure of 20 PSI. Besides, we are quite happy with its performance and quality. Best of all, it is portable, so you can carry it with you wherever you want. 

The flow rate of this best outdoor portable propane tankless water heater is only 1.5 GPM; if it is insufficient for you, you can get a 12V Eccoflo water pump to boost its water flow rate to 3 gallons per minute.

Specifications:

2. Rinnai V65eP Propane Tankless Hot Water Heater

Rinnai is one of the prominent water heater brands in the world. They produce dryers, heating appliances, kitchen appliances, fryers, grillers, etc., for residential and commercial use. 

If we talk about this particular tankless model, it features a flow rate of 6.5 GPM. It has a Control-R 2.0 app that has timers and lets you schedule the unit to turn on and off according to your needs remotely. 

Besides, this best outdoor propane tankless water heater has a vacation mode. Its compact design permits you to save valuable space even with an outdoor installation. 

You can expect to get a reliable, limitless hot water supply at your preferred temperature from this incredible machine. 

The installation of this device is quite simple, and you can get water for two bathrooms easily, depending on the temperature of incoming water and your ideal temperature.

Specifications:

3. Camplux 5L Outdoor Portable Water Heater

Camplux 5L is one of the top-rated propane outdoor tankless units on Amazon. Its current users are completely satisfied with its high performance. One of the recent reviewers stated that since it arrives with all necessary features, it is the best overall water heating system. 

We have added it to our list because it’s portable and affordable. Bearing in mind its portability, energy efficiency, and innovation, it’s stunningly crafted.

Additionally, it can help you save a lot of money on energy bills. If you are a traveler who desperately needs a portable and compact machine, you would really like it. 

You can comfortably take it with you anywhere you go. If you need water to wash your pets, car, or boat, this exceptional appliance has you covered.   

Specifications:

4. GASLAND BE158 1.58GPM 6L Outdoor Portable Gas Water Heater

Gasland BE158 water heater has an overall weight of 15 pounds, so it is super-easy to carry. Its width is just 11 inches, and its height is 17 inches. It means mounting it will not be a problem for you in your house outdoors. 

This mind-blowing product has impressed us the most because of its multiple safety and protection features. To guarantee your and your family’s safety, it has a flame failure device, overheating protection, and anti-freezing protection. 

Besides, there’s an anti-freezing drain plug that is responsible for releasing any residual water to prevent freezing. We are also using this device, and it works as advertised. 

It’s lightweight and has an eye-catching design. We are happy with the ability to get warm water for all our household errands. 

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5. Camplux 16L Propane Gas Tankless Water Heater

This device functions on propane and is intended for exterior mounting. Its water output flow rate is 4.22 GPM. It also features a digital temperature display that allows you to set different temperatures accurately according to your desire. 

Its design is simple and elegant. On the other hand, this water heater can help you accomplish 88.5% thermal efficiency. It’s guaranteed that you will get instant and nonstop hot water with it. 

If we talk about its safety functions, it equips flame failure, anti-freeze, and overheating protection systems. The maximum power output of this excellent appliance is 110,000 BTUs per hour.  

Specifications:

6. Noritz NR50ODLP Outdoor Tankless Water Heater

Noritz NR50ODLP has made its position in our list because of its lightweight and easy installation process. It saves you from calling an experienced plumber to install this unit and charging additional costs for it. 

Buyers are happy with its performance and efficiency. This propane-powered device can be installed outside your residence. You can get instant warm water at a rate of 5 gallons per minute. 

It requires a valve kit for outdoor installation. Furthermore, it operates at high efficiency and helps you save a significant amount every month on thermal expenses. 

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7. Thermomate 16L Outdoor Water Heater

If you are on the outlook for a high-performance machine for your boat, RV, or cabin, this best outdoor propane tankless water heater is a sensible choice. 

This tiny and compact unit works like a charm, delivering you with 4.23 GPM of seamlessly warm water wherever you are. What makes it stand out from others is its dual solenoid valve design. 

This function lets this device start heating even with the lowest water pressure. It activates the heating procedure with only 0.7 PSI of water pressure.

This machine also features anti-freeze protection and a flame failure device like other outdoor units. It can make your excursions more worthwhile because it does not put your family in any harm. 

We also like its sleek and simple design. The controls are easy to use, but the temperature display could have been larger.

Specifications:

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How To Select The Best Propane Tankless Outdoor Water Heater For Small House?

Capacity

One of the most critical considerations for the best propane tankless water heater for cold climates is how many faucets the heater can facilitate at once without compromising on the water temperature.

You will obtain specification manuals with your unit that will give you information about the number of fixtures that can be run at once and at what temperatures, flow rates, incoming temperature, and weather conditions. 

Different types of climates require diverse capacities. You should prudently determine how frequently you need the hot water and whether the device you have picked can deliver it sufficiently.

Applications

You should figure out where you will use the heater and what the applications are. If you want to utilize the best outdoor propane tankless water heater for a shower, you will need a higher flow rate. 

Nevertheless, if you need it for small chores, like washing hands or dishwashing, you can opt for a unit with a small flow rate.

Maintenance

Your outdoor propane tankless appliance will need maintenance if you have hard water. You can flush it with a descaling agent annually or every few years, depending on your house’s size, to eliminate the accumulation of mineral deposits.

Compatibility

You need to confirm your new machine fits seamlessly with your residence’s pipes. Decrease your expenditures and limit the costs as much as you can.

Warranty

Before buying the best propane tankless water heater for cold climates, make sure to read the reviews to know about the real-life warranty of the unit. 

Some brands provide 10-20 years’ warranty. However, some companies only offer 1-2 years’ warranty. Some manufacturers fail to honor their warranty.

Weather Protection

Your outdoor unit should be able to work flawlessly despite any sort of climate conditions that it is exposed to. Typically, in colder weather, freeze protection is compulsory for the effective working of the device. 

It should be safeguarded against corrosion from rainwater. Moreover, your appliance should be able to prevent water and sediment from seeping into it as it can create serious issues in the long run. 

Gallons Per Minute

It is essential to determine the correct size of the best propane tankless outdoor water heater for small house. While determining it, evaluate two things. 

First, determine how much water flows through each faucet and appliance per minute. For instance, a kitchen tap needs at least 1 GPM, while the showerhead requires 2.5 GPM. 

If you have 1 bathroom and 3-4 faucets, you will need approximately 5.5 GPM when all faucets are run simultaneously. Second, determine the incoming water temperature and your desired temperature. 

Figure out the difference between both to know the temp rise you need for your heater. If your groundwater temperature is 50° and your ideal temperature is 110°, the temp rise you require is 60°. Therefore, you should look for a propane unit with 5.5 GPM at a 60° temperature rise.