Marey GA10FNG 2.64 GPM 68,240 BTU NG Natural Gas Tankless Water Heater Open Box
Manufacturer: Marey
SKU: GA10FNG-OB














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(888) 999-1522
$ 219.00
$ 179.00
$ 179.00
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Product Overview
Compact design saves space and is easy to install almost anywhere, Provide endless hot water on demand and only as needed. Marey’s unit has a maximum input rating of 68,240 BTU/h and will provide a flow rate of up to 2.64 GPM output. No electrical connection is required; perfect for off-grid applications. Its small to medium water production is ideal for indoor usage, apartment, cabins, and tiny homes. You are able to control your temperature all year round with a convenient summer/ winter switch. Adjustable manual temperature control, multiple safety sensors including overhead and anti-dry heating. It is not recommended for elevations above 2,000 feet.
Like new condition. Most open box units are returns that have never been used. A small percentage were minimally used and refurbished. Ships from the manufacturer in FL. Includes same 5 year warranty as new units.



100% certified by the manufacturer
Factory direct
5 year manufacturer warranty
Authorized Marey dealer
Ships from the manufacturer in FL
Features
- No electrical connection is required, pulse ignition, powered by (2) D batteries
- Adjustable manual temperature control, multiple safety sensors including auto cut-off, automatic ignition, anti-dry combustion, over-pressure, overheating, flame out protection, twin solenoid valves
- Control your temperature all year round with a convenient summer/ winter switch
- Unit provides more comfort and energy savings in the form of lower gas consumption in warmer months
- Requires very low water pressure to activate
- Sufficient flow is always required to keep the overheat safety sensor from shutting the unit off
- Anti-freezing protection
- Only uses gas while water is flowing
- Anti-dry combustion protection
- Over-pressure protection(when water pressure is over 145 psi
- Compact design saves space and is easy to install almost anywhere
Specifications
Flow Rate @ 35°F Rise | 3.41 GPM |
Flow Rate @ 45°F Rise | 2.67 GPM |
Flow Rate @ 55°F Rise | 2.15 GPM |
Flow Rate @ 65°F Rise | 1.83 GPM |
Indoor or Outdoor Installation | Indoor |
Product Depth | 6.9" |
Product Width | 13.58" |
Product Height | 23.62" |
Product Weight | 10.14 Pounds |
Gas Connection Size | 1/2" NPT |
BTU | 34120 BTU's/h |
Minimum Activation Rate | 0.65 gal(us)/min |
Minimum Temperature | 6.8℉ |
Maximum Temperature | 66℉ |
Required Volt Connection | DC 3V |
Uniform Energy Factor | 0.93 |
Vent diameter (in.) | 4" |
Vent Type | Aluminum duct |
Water Connection Location | Bottom |
Water Connection Size (in.) | 1/2"" NPT |
Wattage (watts) | <1 W |
Pressure rating (PSI) | 0.406 PSI " |
Package Contents
Water Heater
Mounting Kit
Owner's manual
Warranty



This product comes with a 5 year factory warranty.
Manuals & Documentation
Customer Reviews (5)
When 1st installed, did not work at all, then removed and replaced unit and still did not work. Then it actually did start to work for 2 days, then intermittently for 2 more days and then stopped working all together for the last week+ I have been dealing with the manufacturer, Marey, Joseph Garcia and he has not been able to figure out what the problem is, so I would like to have a replacement unit to replace the defective on as my tenants are very upset that they do not have hot water for past month mostly.
We have owned a Marey heater for over 10 years. We now own 2 different heaters. We loved them so much we convinced two of our friends to purchase them. The heaters are so energy efficient and reliable. If you need a part, the company is very helpful and expedient in getting the part to you. Factory Pure sold us our 3rd Marey heater, a spare, their product was just as they described and it arrived on time. I cannot give enough praise for Marey heaters and Factory Pure as a company.
they treat you good
did not get the open box there was not any available very happy had to replace for someone else
Marey GA10FNG 2.64 GPM 68,240 BTU NG Natural Gas Tankless Water Heater Open Box