2.6 GPM Eccotemp L10 Outdoor Portable Tankless Water Heater

Known for being highly portable and efficient, the Eccotemp L10 is your source of endless hot water when you’re out adventuring in nature.


Known for being highly portable and efficient, the Eccotemp L10 is your source of endless hot water when you’re out adventuring in nature. Perfect for a summer cottage, RV, lake home, camper, farm, or cabin the appliance can perform in a range of applications. Since it is portable and lightweight, users don’t have to worry about carrying excess baggage when utilizing the unit. Eccotemp is a well-known name in the world of portable tankless water heaters. It carries an extensive line of water heaters that have various applications, from residential to commercial.

The Ecootemp L10 has the ability to provide up to 2.6 Gallons Per Minute, which is great for one to two applications running simultaneously. You can rest assured that the Ecootemp L10 tankless portable water heater will provide water between the range of 80F to 145F degrees. The battery ignition mechanism takes out the risky work of using a lighter or matches in closed quarters such as a cabin, farm, or RV. The automatic ignition feature is powered by two D cell batteries, enabling the unit to work only when the water is running. Therefore, there is no possibility of it overheating.

If you enjoy living off the grid, scaling new heights in nature, or simply have limited access to hot water and electricity, the Eccotemp L10 portable tankless water heater is a reliable solution. The appliance comes with regular 1/2” NTP fittings and the recommended range to operate it is between 20 and 80 PSI. You can also modify the water system by using a 12-volt pump, which is sold separately. Our overall review of the appliance at TopTenWater.com yielded favorable results. Keep reading to learn more about the appliance.

  • The Ecootemp L10 is easy to store thanks to its compact size
  • Is recommended only for outdoor usage in situations such as family outings and camping
  • The ignition is solely battery powered, adding another level of security for users
Hassle free portabilityOutdoor use only
Automatic safety shutoff timerLower energy factor compared to other units
Liquid propane poweredCannot be plumbed into fixtures
Strong performanceStrong performance


  • Comes with 1-year warranty on heat exchanger
  • Uniform energy factor of 0.79
  • Can be mounted on wall
  • Total BTU output up to 74,000
  • Weighs 27 lbs., therefore easy to transport
Fuel SourceGas
Heat Exchanger Warranty1 year
Minimum Activation Rate0.75 GPM
Maximum Temperature140F degrees
Minimum Temperature80F degrees
Water Connection Size1/2”
Gas Connection Size¾”
Vent TypeSingle Wall
Total BTU74,000
Water ConnectionBottom

In our pursuit to find quality and reliable tankless water heaters, we at TopTenWater.com scour the web to see what people are saying about various units. We did the same with the Ecootemp L10 and found users to be generally happy with the product. Several people had used the unit for over 5 years, showing that it is indeed reliable to take on trips with you. People were also happy that the unit used a fraction of fuel versus a water heater that’s turned on all the time. Let’s take a closer look at some user comments made on different platforms.

There were over 400 reviews on the Ecootemp L10 portable tankless water heater at the time of writing this page. The sheer number of reviews indicates the strong popularity of the unit. The majority of reviews were positive. One user said they had hot water for the continuous 20 minutes that they showered. After they were done, the propane tank gauge had barely moved, indicating how efficient this unit is. Another user was happy that they can use this water heater outdoor and it continued to provide hot water for more than 20 minutes. Most users who posted positive reviews on the product were those who used it outdoors, from camping trips to hiking adventures.

There were only a handful of negative reviews on this appliance. One user said the unit only worked for about 8 months, until it started to leak and water was everywhere. The user also was unhappy about the placement of the battery compartment. While he was in the warranty period, he claimed the company didn’t do much to help him out. Another consumer also complained about poor customer service on the company’s behalf. They said there were misleading statements in the description provided by the manufacturer.

One user stated that this is the best unit on the market. This was the only positive review on the site when writing this page.

Another consumer gave this product 1 star on the site because they stated the unit failed after only one month of usage. They warned other consumers to read the warranty carefully before purchasing. The user was unhappy because the company would not refund their money or replace the defective unit. According to the individual, the warranty covers parts only and not labor. This user spoke with customer support for more than 2 months, but the unit was still non-functional.

Most users were pleased with the appliance. One person stated they use the unit for an outdoor shower area and it worked flawlessly. The water came out hot, even though their source water from the well was quite cold. Another person used the product in their cabin to provide hot water to the kitchen and bathroom. It gave them plenty of water to wash dishes and take showers. One individual loved the product, but also told other users to be careful when adjusting the temperature on the unit, as a small change can result in significant temperature change.

One user stated the unit didn’t work when they received it. Another one had similar things to say, the unit worked very well for about a week, and then quit working. The user called Ecootemp and the company was eventually able to fix the product by offering help over the phone.


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