L10 High-capacity LPG Tankless Water Heater

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ITEM# 12000385
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ITEM#: 12000385

Stop worrying about running out of hot water during your next shower with this high-capacity LPG tankless water heater. Featuring a range of water temperatures and the staying power for multiple hot water applications, this tankless water heater is energy efficient and ecofriendly. Add this water heater to your next home renovation for an upgrade that you're sure to love.
  • Get hot water fast with the Eccotemp L10 water heater
  • Endless hot water at your cabin, summer cottage and more
  • Water heater has 10 liter capacity
  • Delivers up to 2.65 gallons per minute of hot water
  • Water ranges from 80-165 degrees F
  • Plenty of water for 2-3 hot water applications running at the same time
  • Two D cell battery ignition starts the flame only when water is running
  • No chance of overheating and makes it perfect for off grid or areas where you have limited electricity
  • Designed for a more permanent installation, the L10 comes with standard 1/2-inch NPT fittings
  • Ideal operating range is 25 to 80 PSI
  • Works great on modified water systems such as a 12 volt pump
  • Total dimensions are 28 inches tall (35 inches with rain cap) x 17 inches wide x 6.5 inches deep
  • Weighs about 18 pounds
  • 75,000 BTU
  • Includes stainless steel rain cap
  • Includes CSA regulator for use with standard 20-pound grill propane tank
  • Battery igniter means no electricity needed
  • Garden hose adapter included
  • 20-minute automatic safety shutoff timer
Temperature Rise:
  • 77 Degrees F: 1.6 GPM
  • 55 Degrees F: 2.2 GPM
  • 25 Degrees F: 2.55 GPM
Note: Should not be used on vinyl or other plastic siding.


Assembly Assembled
Color White
Set Includes 1 Piece
Dimensions 35 x 15 x 6.5
Warranty 1 year Limited Manufacturer
Model Number L10
Country of Origin China

Customer Reviews

5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
  • Most Recent

  • Warning, units drain is not a true drain !
    Verified Purchase

    Works well before 1st winter storage, "warning" will freeze if not blown out after drained !! Piping inside runs up then down and back up again,causing water to trap and freeze. Had to modify my internal units piping, as a real engineer would have originally designed it, to drain proper !!! We don't all have cabins in southern Florida ! *** .

    Read More
    Mike M. Dec 12, 2016
  • linka
    Verified Purchase

    wonderful portable outdoor water heater- you only need 2 d cell batteries, propane tank( small portable works great) and your water hose- we created a fabulous outdoor hot shower!

    Read More
    Leslie K. Mar 8, 2016
  • Good after fixing a problem
    Verified Purchase

    Works good now,but had to open up and reconnect sensor hose,as it would shut off after a few seconds.I would hope the company could find a fix for this problem.

    Read More
    LARRY M. Nov 22, 2015
  • Very Pleased
    Verified Purchase

    We are very happy about our purchase. This Water Heater is working very well.

    Read More
    Donald A. Feb 10, 2015
  • singer
    Verified Purchase

    very good unit, I now own 2 got one 5 years ago and one last month

    Read More
    Robert h. Jan 30, 2015
  • Most Helpful

  • This is a great product

    This is a great product , once you set it up right..... here are a few helpful tips ,when setting up the unit get your self a whole house filter this will make the unit last longer and have trouble free operation .Next thing is to set it up with the hots water setting that you would shower at or wash dishes, By doing that you will never get burned , next thing is that you turn on a shower full blast and then lower the water temp by adding small amount of cold water . By doing this the flow sensor will keep the unit on and you will have hot water at a even flow ,if you have trouble with the unit shutting off on you when you take a shower just remove the flow restrictor on the the shower head it should work just fine . once you know how to use ondemand water heater your savings will pay for unit in less than a year i enjoy mine . have a great day and think green on demand....

    Read More
    kauaicabin Nov 4, 2010
  • Over Rated
    Verified Purchase

    The Good: Overstock is an awesome company and very glad I ordered through them. This water heater is very simple and operates well. ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- The Bad: The unit is severely over rated. With the gas on max. and water flow on min. the best this unit will do is heat water to around 120°F. On this setting the flow is about 1 gallon/minute...approx. 40% of its rated capacity. At rated capacity of 10 LPM (2.65 GPM) the water is only slightly warmer than body temperature. I bought it to use for one bathroom and it will barely be able to handle this job...if not be inadequate. I will be upgrading to a larger unit later but at least I have the utilities set up for it. ...and...of course this water heater is made in China. This same company also makes a L5 unit and I can only imagine it would be nearly useless.

    Read More
    kuhnthedog Jan 21, 2011
  • Great product
    Verified Purchase

    purchased as a temporary unit while permanent unit is replaced under warranty and we don't want to switch back to the permanent unit. Delivered on time, unit installed easily, simple settings, no limit to the hot water that we have found. This unit doesn't use a lot of gas to run.

    Read More
    arfanan Mar 26, 2010
  • Super value--good for my cabin
    Verified Purchase

    Installed easily and works good with my 12volt pump. Good for remote locations like my cabin which is off the grid. As I don't use it daily, it usually takes a few starts to clear the gas line but the water comes out hot and efficient.

    Read More
    skippmunkel Oct 25, 2011
  • Perfect
    Verified Purchase

    This works the way it was made to work. We put it in a one bedroom cabin where it is hooked up to a small propane tank. Everything we needed to hook it up and get it going came with the heater. Plenty of hot water for showers.

    Read More
    millsaplady Mar 21, 2012

Questions & Answers

  • Q:

    "Can the eccotemp L10 tankless water heater be used inside if it is vented properly"

    • A:

      Yes, but be careful to foolow extra precautions. Also make sure you purchase a couple of very good quality co detectors.

  • Q:

    "Why did you choose this product?"

    • A:

      To heat water for a small cabin.

    • A:

      I'm building a small cabin completely off grid (no electricity from the power company) and needed a water heater that would light the gas flame on demand without an electronic spark. I didn't want one that used a continuously burning pilot lighter either. Who wants a flame burning in a cabin when no one's home. That made me nervous, plus it wastes gas. Propane is usually more expensive that natural gas. This water heater uses batteries to ignite the flame. Also, since the cabin is small and I have a generous crawl space, I decided to purchase one to mounted outside. This way I did not have to vent the unit through the wall, which can be quite expensive. It looks like I'm getting exactly what i need at a great price.

    • A:

      For an outdoor bathroom.

    • A:

      Needed waster heater for summer camp

    Read more Read less
  • Q:

    "Can you vent it PVC?"

    • A:

      Hello Morningstill, no, you cannot. Thank you for shopping with us!

  • Q:

    "Would this unit deliver enough heat to operate a 30'x40' concrete slab hydronic radiant system?"

    • A:

      Hello Shop, unfortunately the EL10 has a 20 min shut of valve that is not made for radiant heat. Have a great day!

  • Q:

    "What kind of flew will I need to mount this inside the house in small room? Sorry about the first question"

    • A:

      Unfortunately, at this time, the information is not available. As the information becomes available, the site will be updated. Have a great day.

    • A:

      This unit is made for OUTDOORS. An indoor unit would get its combustion air from a double wall flue system. This unit doesn't have that feature. Combustion air comes from vents around the cabinet.

    Read more Read less
  • Q:

    "What changed of flew will I need to mount inside of house and do you sell it"

    • A:

      Unfortunately, at this time, the information is not available. As the information becomes available, the site will be updated. Have a great day.

  • Q:

    "Can this unit use natural gas"

    • A:

      Thank you for your question jack27. No, unfortunately the L10 cannot be converted to natural gas. Have a great day.

  • Q:

    "Can this unit be mounted indoors with additional chimney?"

    • A:

      This unit can be mounted indoors but with the additional chimney would depend on where you are going to mount it. Most of these are designed for small bathrooms or log cabins and the gas line is for a propane tank hook up. The unit if mounted in a small combined space would need adequate ventilation and a chimney or flew on it and if mounted in a room say a log cabin with a 2 story vaulted ceiling with vents then no chimney or flew would be needed. thank you for shopping Overstock.com.

  • Q:

    "The water heater shut off after 2 minutes or so anybody know why?"

    • A:

      Thank you for your interest. We are unable to determine why from here. Please consult the paperwork that accompanied this item and call the customer service number enclosed. Feel free to contact us again with any further questions.

  • Q:

    "Can this be attached on outside wall of my log cabin? Can it be operated from within cabin without having to go outside?Does it just vent into the air...with no need for extra flue?? thanks"

    • A:

      You would need to read the installation instructions. It sounds like it is a common item for cabins by reading the first sentence of the description. It doesn't mention anything about an extra flue.

    • A:

      No if it freezes will damage unit.

    Read more Read less
  • Q:

    "Does this unit need to be brought inside during freezing weather?"

    • A:

      No, this unit is able to withstand cold temperatures and can remain outdoors.

  • Q:

    "Can this unit be converted to propane?"

    • A:

      Yes, it comes with the CSA regulator that you would use for a standard 20-pound grill propane tank.

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