Marey GA10LPDP 3.1 GPM Tankless Water Heater Open Box

  • Model: Marey
Marey GA10LPDP 3.1 GPM Tankless Water Heater Open Box

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/  101 Sold
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If ordered by 12PM EST
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To place an order over the phone or for immediate assistance, please call (888) 978-4993. For after hours sales please call (888) 999-1522.

Open box - As brand new.   Most open box units are returns that have never been used.  Ships from the manufacturer in FL.  Includes same 5 year warranty as new units. For an expedited shipping quote, please give us a call.

Transit time for most orders: 1-3 days

Manufacturer Refurbished 100% certified by the manufacturer
Manufacturer Refurbished Guaranteed to work like new or your money back
Manufacturer Refurbished 5 year manufacturer warranty
Manufacturer Refurbished Authorized Marey dealer
Manufacturer Refurbished Ships out same or next day

No electrical connection required.

  • Compact design saves: space and allows for easy installation just about anywhere.
  • This unit requires the following clearances for proper ventilation:
    12" on each side of the unit 16" below the unit 12" above the unit
  • Heats unlimited volume of water as needed.
  • Hot water is available in just a few seconds.
  • Activates by water flow from the moment the faucet is opened.
  • 5-year warranty.


- Saves water and up to 60% less electricity than conventional tank water heater, making it cost-effective and environmentally friendly.
- Can last a lifetime, keeping up to 87% efficiency level.
- Rustproof, no water loss due to leaks.


  • Tankless Liquid Propane Gas Water Heater
  • Compliant with Department of Energy gas tankless water heater requirements
  • Digital Panel displays outgoing water temperature
  • Very DIY friendly and easy to install
  • Heats unlimited volume of water on-demand as needed
  • Does not require electricity (operates with 2D cell batteries)
  • Perfect alternative for homes with frequent power outages or off-grid applications
  • Only uses gas while water is flowing
  • Works easily with low levels of water pressure
  • Anti-combustion and gas pressure safety protection
  • Can maintain 87% efficiency level throughout a lifetime
  • Rustproof design, no water loss due to leaks
  • Saves water and uses up to 60% less electricity than conventional tank water heaters, making it cost-effective and eco-friendly
  • Excellent customer service support and 5 year warranty


The versatile and easy-to-install 10L Liquid Propane Gas Tankless Water Heater with digital display is the perfect energy efficient solution for your home which will not only help you save money, but also help you save money on your electric bills. This powerful unit only operates on 3V, making it ideal for off-grid applications or anywhere electricity is limited. Copper heat exchanger resists corrosion allowing it to last a lifetime. At a standard faucet flow of 1.5 GPM, the temperature increase is 67 degrees Fahrenheit. The LCD display gives an accurate outlet water temperature which ensures your hot water is always at the exact comfort level which you desire.

This unit requires the following clearances for proper ventilation:
12" on each side of the unit 16" below the unit 12" above the unit

Marey products come with a 5 year manufacturer warranty.

Customer Reviews

Based on 7 reviews
10L Tankless LP

Very good unit. Easy to install. Heats fast.

Purchased for use in Jamaica

We frequently have water outage and each time the water is turn back on its a hassle to keep flushing. The system which will not turn on if there is any air in the line. Our water is consistently tropical temperature and when the unit i set to Summer; the water does not get hot sufficiently for a comfortable shower; therefore I have the unit set to winter which burns a lot more gas.

Marey GA10LPDP 3.1 GPM Tankless Water Heater

This unit works great for my outdoor kitchen.

Great water heater

Everything as advertised. Performs very well

Very happy with water heater and Factory Pure

My recently my Marey 10L unit froze, along with much of my plumbing when my house lost heat in North Dakota. I was away down south... It was my fault really. So I was online shopping for replacement. Saw great price for same unit at FactoryPure so I called them up. Spoke with delightful gal about everything, and for the advertised price and with free shipping it was on its way. Five days later Fedex plunks it on my porch. Next day I put it in, this time seemed much easier. I needed no help. When ready, I turned on the shower and in about a minute it was up to temp. That was with about 44 degree water coming in. You have to learn how to "play" with these Marey's to get ideal shower and washing temps right out of Hot tap, no mixing needed. So far I love the new unit so problems! $159.00 was a steal compared to my alternatives. It came quick, in fine shape. Sealed like brand new, not a scratch. I am completely confident in this company now. They really delivered and were real friendly. Nobody asked me to put this up. Thanks again.



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