5 Best Propane Tankless Water Heater Reviews (Updated 2023)

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Best Propane Tankless Water Heater Reviews

Propane tankless water heaters are a genius invention, considering how energy-efficient they are, while giving us warm water and eco-friendly sustainable homes. We have researched and reviewed five top-rated propane tankless water heaters as well as one to avoid.

What are the best propane tankless water heaters on the market?

✅ 1. Rinnai V65ep Learn More

✅ 2. Camplux 5L 1.32 GPM Learn More

✅ 3. Eccotemp L10 Learn More

✅ 4. Rinnai RL94i Learn More

✅ 5. Eccotemp FVI12-LP Learn More

Reviews of the 5 Best Propane Tankless Water Heaters, Plus 1 to Avoid

1. Rinnai V65ep

Rinnai V65ep Review

Rinnai V65ep Review: Best Outdoor Propane Tankless Water Heater As winter days draw near, we begin dreading the days where even our hot water needs will require scheduling. Often, we have to make a difficult choice between taking a steaming hot shower on a freezing day, working the dishwater, or tackling our laundry piles. With the Rinnai tankless heater, you can say goodbye to tough winter decisions and have hot water as many times as you need in a day.

The Rinnai V65ep tankless water heater uses the ThermaCirc360 technology, which helps circulate hot water through your pipes and give you buckets full of steaming water fast. With such a tremendous technology, you no longer have to waste precious water while making its way from the old tank to your shower.

This tankless heater’s energy efficiency is enthralling on its own, but even better is the water heater’s compact design. With this, you can install your heater hassle-free in even the most unconventional spaces of your home. From the attic to the closet and even crawl spaces, you can enjoy piping hot water all through chilly winters.

Apart from being the size of a small suitcase, the Rinnai heater is replicable. Hence, you may simply swap components when the need is, instead of purchasing a whole new system. What more, the life expectancy of this tankless heater is 20 years against a traditional tank.

To watch the Rinnai V65ep Review on YouTube, click here.


  • Distributes approximately 6.6 gallons of hot water per minute
  • Ultra-compact
  • Consistent pre-set temperature


  • You will need an additional controller for extra costs if you to go up to 160F
  • You may find the initial investment cost slightly high
  • Power connection instructions are a bit unclear


2. Camplux 5L 1.32 GPM

Camplux 5l 1.32 Gpm Review

Camplux 5L 1.32 GPM Review: Best Portable Propane Tankless Heater If you’re shopping for tankless water heaters in the U.S or Canada, we highly recommend the Camplux Propane tankless heater. For people who find happiness and enthusiasm in being outdoors, this portable heater is a joy, providing the most efficient and easy outdoor lifestyle possible.

With the Camplux 5L 1.32 GPM heater, you will find innovation, energy-savings, and portability as the key elements. If you are particularly fond of beach days out, camping, or family vacations in faraway mountain cabins, you will find the Camplux portable propane heater as a great travel companion.

You will find various features in this water heater from maximized protection with the oxygen depletion sensor to using 2 D cell batteries to switch the ignition. You can also rest assured of optimal performance and ideal low water pressure with Camplux’s operating range.

You will also not be disappointed by the model’s performance if you work on a modified water system featuring a 12-volt water pump. You will be pleased to note that the Camplux propane tankless heater offers the lowest water pressure on the market.

The compact size and heat protection, anti-freezing protection, flame failure device, and other elements make it an ideal investment for your outdoor life.

To watch the Camplux 5L 1.32 GPM Review on YouTube, click here.


  • Requires a water pressure of merely 3.0 PSI to start up
  • Offers 1.32 gallons of hot water output per minute
  • It comes with everything you need for hooking up and operating the unit


  • You cannot use it for drinking water
  • Is not suitable for elevation beyond 2000 ft.
  • The highest temperature in 114.8 degrees F


3. Eccotemp L10

Eccotemp L10 Review

Eccotemp L10 Review: Best Propane Tankless Water Heater with Battery Ignition Ever since our awareness of eco-friendly and sustainable living has expanded, we have been waiting for manufacturers to offer us products that would have helped us save energy and improve the quality of life. Staying true to these commitments is the Ecotemp L10 propane tankless heater with battery ignition.

We can describe it as one of the best tankless water heaters on the market, considering the endless supply of steaming water you get. Hence, if you’re planning some time away at a mountain cabin, a potting shed, a lake home, a summer cottage, or in a camper, you can rely on the Eccotemp L10 heater to supply you with hot water throughout.

With 2.6 gallons of hot water per minute, you will be able to live comfortably even on winter days. The temperature ranges from 80 to165 degrees F with a battery ignition that requires 2 “D” cells for the flame.

This propane heater is ideal for areas off-grid or those where you have scarce electricity. You must not allow the compact design to fool you because the L10 heater gives you a permanent installation with standard ½” NPT fittings.

You can plumb this heater right in with your standard fixtures and reap the benefits of the optimal operating range of 25 to 80 PSI. What else could one want than fabulous hot water while enjoying the outdoors? If this is all your heart desires, then you find a running supply of it with the Ecotemp L10 portable water heater.

With the battery igniter, you do not need electricity, while the CSA regulator and 3.5’ hose helps the model pair well with a 20lb grill propane tank.

To watch the Eccotemp L10 Review on YouTube, click here.


  • No electricity required
  • Can run more than one water application at the same time
  • Starts the flame only when water runs, so there is no overheating


  • Accessories may need adjustment as per customer reviews
  • You need to mount with the pump facing downwards
  • It does not regulate the temperature itself


4. Rinnai RL94i

Rinnai Rl94i Review

Rinnai RL94i Review: Best Indoor Propane Tankless Water Heater Rinnai offers you the best tankless water heater for your indoor use. There’s never a time when we could refuse the benefits of having running hot water in the house. From dishwashing to soothing our tired and aching muscles, the hot water feels like a treat most days.

The Rinnai RL94i is an indoor propane tankless heater that ensures you live a comfortable life and your bathing, laundry, and dishes never have to compromise for lack of hot water. With the best of the ThermaCirc360 technology, this heater circulates hot water like magic through your pipes.

Efficient living and energy saving are the key elements of this water heaters, as it takes away the wastage of nearly 8,700 water bottles per person annually. Besides, whoever refuses the extra space you free up in your home with a compact design on the models and easy installation?

With Rinnai RL94i, you use 40% less energy than the traditional tanks and play your part in reducing the harmful CO2 emissions.

To watch the Rinnai RL94i Review on YouTube, click here.


  • Replicable components
  • 20 average years of life expectancy against the 8-10 years of traditional tanks
  • Cost-efficient in the long run


  • Not usable for drinking water
  • Water stays hot as long as you keep it running
  • You may require tools and readjustment of your vent for installation.


5. Eccotemp FVI12-LP

Eccotemp Fvi12 Lp Review

Eccotemp FVI12-LP Review: Best Propane Tankless Water Heater for RV We consider the Eccotemp FVI12-LP a top-rated tankless water heater for RV or mobile homes, considering its intense propane flame. This feature helps the water to begin heating the moment it goes through the heat exchanger.

So if you’re looking for a reliable source of hot water all through the year, especially for your RV or mobile home, here is an ideal water heater for you. With gas powering, you can equip any part of your home indoors to supply hot water, with the Eccotemp FVI12-LP propane water heater that activates only when you’re using it.

The energy-saving feature ensures you save up on exorbitant bills annually while the installation is safe and convenient for your indoor life. This propane tankless heater comes with efficient power ventilation; hence it suits almost house sizes, from small cabins to lavish home apartments.

Of course, who wouldn’t appreciate minimal sound as appliances run in the house? With this propane heater, you get minimal noise output and plenty of space-saving due to the compact and sleek design. We also love the digital temperature display because it is so easy to read and operate.

Every member of the house will be able to work this tankless heater efficiently, with the convenient manual water temperature controls. It also comes with a safe electronic ignition system, so you can plug it into your standard electrical outlets of 120 volts with UL-listed cords.

To watch the Eccotemp FVI12-LP Review on YouTube, click here.


  • Perfect for all home sizes
  • Minimal noise output
  • Energy saver – activates only when one is using it


  • May not operate well for sinks
  • Some do not find it high capacity
  • The exhaust vent is 2¼,” and you may need to find a suitable vent pipe


Avoid: Happybuy 6L Propane Tankless

Happybuy 6L Propane Tankless Review

Happybuy 6L Propane Tankless Review: If you’re out in the market for a propane tankless water heater, we would recommend other options before the Happybuy 6L Propane Tankless.

As first-hand user reviews indicate, the water heater promises to be stainless steel and rust-resistant, but exposure to the outdoor elements may prove otherwise. In certain instances, the Happybuy 6L Propane Tankless has developed rust, which may indicate that only the front panel is stainless steel while the rest is inferior quality material.

The unit is also not a hassle-free one as it requires three adapters to work the water in and out and the propane to work with American fittings. Also be aware that this cannot run longer than 20 minutes without shutting off. And it is not designed for the indoor use.

It does remain a decent budget option. It is compact and is capable of providing warm water on the go. There are better options on the market if you can afford one of the more premium propane tankless water heaters, however.

To watch the Happybuy 6L Propane Tankless Review on YouTube, click here.


  • Relatively inexpensive
  • Compact water heater
  • Shuts off every 20 minutes


  • Prone to rust
  • Not suited for outdoor use
  • Low quality material


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2022 Buyers Guide to the Best Propane Tankless Water Heater:

You have to consider several factors when looking for a good quality propane tankless water heater. Durability, build, price and water flow are among the essential features you should look for. If you are an outdoorsman, consider the size and weight of your unit, as it will determine whether or not it is portable.

The size, for starters, is important. A small heater may fall short of meeting your and your home’s hot water requirements, while a very big heater may be an unnecessary purchase. To determine the right size you need, you must consider your maximum uses, from dishwashing, laundry to daily showers. The total water consumption will determine the ideal heater size for you.

Secondly, you must also consider the flow rate and the temperature rise. The gallons per minute tells you the amount of water the fixture will provide at a time, and the maximum temperature the heater will rise to from groundwater level. Additionally, the temperature rise is mainly the temperature difference between the groundwater and your desired hot-water output.

Such calculations can tell you whether the appliance is suitable for your total usage, especially during peak demand hours and whether the water will be hot enough to suit your liking and needs. You must also run through the manufacturer’s manual when surveying the market for heaters.

3 Main Points to Consider:

  • Flow: The last thing you want when enjoying a hot water bath or prepping food in your kitchen is poor flow. You do not need to empty tankless water heaters since they do not have a tank. The water supply can be endless, but the flow can sometimes be a problem. Only choose models that provide good flow.
  • Mounting: Do not make the mistake of buying a heater that you cannot place or mount in your desired area. Make sure that the model you are choosing is easy to mount and has all the necessary prerequisites to install it at your preferred location. If you want a heater for outdoor use, choose a wall-mounting unit.
  • Electric vs. Gas: Both heater types have their benefits. Tankless water heaters often require large gas lines in comparison to traditional heating units. Also, gas tankless water heaters are significantly faster than their electric tankless water heater counterparts. Not to mention, they provide high water pressure. However, their pilot remains open even if you are not using water. Electric units, on the other hand, do not require as much energy. You can turn them off after you’re done using water.

What is a Propane Tankless Water Heater?

These heaters are an excellent option for heating and reheating water whenever you want. They use propane gas as fuel and provide a steady flow of water to users. People often prefer these heaters because of their low carbon dioxide emissions and their environmentally friendly nature.

Natural Gas vs. Propane Water Heater

Natural gas water heaters are only suitable for areas that get an adequate supply of natural gas. Propane water heaters, however, can run anywhere. However, propane poses a significant explosive risk since it is heavier in comparison to natural gas.

Final Thoughts on Buying a Propane Tankless Water Heater

Particularly if you live in states like Washington, South Carolina, Oregon, Tennessee, Oklahoma, where demand for a propane tankless water heater is high, you need to consider some primary factors before you select a propane tankless water heater for your needs.

In the end, remember to list down the main reasons why you need a fixture for an additional boost of hot water in your life, then tick mark the features of the prospective items against your list. The one that comes closest to what you need is the right pick.

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