Model # GA5NG

Internet #204357328

MAREY 2.0 GPM Natural Gas Tankless Water Heater
0764177000033

MAREY

2.0 GPM Natural Gas Tankless Water Heater

  • Same-day installation in most areas. Call 1-855-400-2552 by noon.
$ 154 98 /piece
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Frequently Bought Together

Frequently Bought Together

Product Overview

  • Same-day installation in most areas. Call 1-855-400-2552 by noon.
The MAREY GA5NG Indoor Natural Gas Tankless Water Heater can provide up to 1.5 Gal. per minute for a perfect shower at 115°F output water temperature. It is also called water heater on demand, because it heats water only when needed, saving energy. It is designed in the USA and perfect to supply endless hot water for up to 1 or 2 points of use simultaneously (for a variety of residential hot-water applications). Its compact design saves space and is easy to install: you will only need 2-D cell battery for the ignition and a venting (not included in the box). MAREY has been on the water heating business since 1955, bringing tradition and innovation together.
  • Compact design saves space and is easy to install almost anywhere
  • Save up to 60% on electricity bills for water heating
  • Provide endless hot water on demand and only as needed
  • No electrical connection is required
  • Unlimited hot water whenever is needed, heats unlimited volume of water as needed
  • Designed in the USA
  • Hot water is available in just a few seconds
  • Perfect alternative for those homes experiencing frequent power outages
  • Allows water temperature to be controlled
  • Cost-effective and eco-friendly



  • California residents see Prop 65 WARNINGS

Product Overview

  • Same-day installation in most areas. Call 1-855-400-2552 by noon.
Model #: GA5NG
Internet #: 204357328

The MAREY GA5NG Indoor Natural Gas Tankless Water Heater can provide up to 1.5 Gal. per minute for a perfect shower at 115°F output water temperature. It is also called water heater on demand, because it heats water only when needed, saving energy. It is designed in the USA and perfect to supply endless hot water for up to 1 or 2 points of use simultaneously (for a variety of residential hot-water applications). Its compact design saves space and is easy to install: you will only need 2-D cell battery for the ignition and a venting (not included in the box). MAREY has been on the water heating business since 1955, bringing tradition and innovation together.

  • Compact design saves space and is easy to install almost anywhere
  • Save up to 60% on electricity bills for water heating
  • Provide endless hot water on demand and only as needed
  • No electrical connection is required
  • Unlimited hot water whenever is needed, heats unlimited volume of water as needed
  • Designed in the USA
  • Hot water is available in just a few seconds
  • Perfect alternative for those homes experiencing frequent power outages
  • Allows water temperature to be controlled
  • Cost-effective and eco-friendly



  • California residents see Prop 65 WARNINGS

Info & Guides

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Price
$154.98 /piece
$180.93 /piece
$203.00 /piece
Was $237.15
$213.44 /box
Save $23.71 (10%)
Ratings (8) (45) (62) (55)
Indoor/Outdoor Indoor
Gas Type Natural Gas Natural Gas Natural Gas Natural Gas
Flow Rate @ 45 F Rise (gallons/min) 1.50 2.25 2.25 4
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Specifications

Dimensions

Product Depth (in.)
4.7
Product Height (in.)
17
Product Width (in.)
11.4
Vent diameter (in.)
4
Water Connection Size (in.)
1/2"

Details

Application Type
Residential
Finish Family
White
Flow Rate @ 35 F Rise (gallons/min)
2.1 gal (US)/min
Flow Rate @ 45 F Rise (gallons/min)
1.50
Flow Rate @ 55 F Rise (gallons/min)
1.1
Flow Rate @ 65 F Rise (gallons/min)
1.0
Fuel Type
Gas
Gas Connection Size
1/2"
Gas Type
Natural Gas
Heat Exchanger Warranty
5 Year
Indoor/Outdoor
Indoor
Maximum Temperature (F)
129
Minimum Activation Rate (gpm)
0.83
Minimum Temperature (F)
33
Product Weight (lb.)
11lb
Required Volt Connection
No Voltage
Returnable
90-Day
Total BTU
34.614 Btu
Uniform Energy Factor
0.93
Vent Type
Type B Double Wall
Water Heater Features
No Additional Features

Warranty / Certifications

Certifications and Listings
No Certifications or Listings
Labor Warranty
5 Year
Part Warranty
1 Year

Specifications

Dimensions

Product Depth (in.)
4.7
Product Height (in.)
17
Product Width (in.)
11.4
Vent diameter (in.)
4
Water Connection Size (in.)
1/2"

Details

Application Type
Residential
Finish Family
White
Flow Rate @ 35 F Rise (gallons/min)
2.1 gal (US)/min
Flow Rate @ 45 F Rise (gallons/min)
1.50
Flow Rate @ 55 F Rise (gallons/min)
1.1
Flow Rate @ 65 F Rise (gallons/min)
1.0
Fuel Type
Gas
Gas Connection Size
1/2"
Gas Type
Natural Gas
Heat Exchanger Warranty
5 Year
Indoor/Outdoor
Indoor
Maximum Temperature (F)
129
Minimum Activation Rate (gpm)
0.83
Minimum Temperature (F)
33
Product Weight (lb.)
11lb
Required Volt Connection
No Voltage
Returnable
90-Day
Total BTU
34.614 Btu
Uniform Energy Factor
0.93
Vent Type
Type B Double Wall
Water Heater Features
No Additional Features

Warranty / Certifications

Certifications and Listings
No Certifications or Listings
Labor Warranty
5 Year
Part Warranty
1 Year

Questions & Answers

What is the most economicly priced CNG heater for an outside cast iron bath ?

What is the most economicly priced CNG heater for an outside cast iron bath ?
Asked by: Blaino
The Marey 2.0 tankless is VERY inexpensive and would probably be a great choice for an outside application as it does not require any wiring, using batteries to ignite the natural gas. I have lowered the cost of heating water by two thirds using this same water heater. I could not be more pleased with this water heater myself.
Answered by: Buyer
Date published: 2018-05-21

Can this be used for radiant floor heating 270 sf. Pex run 300 ft ,1/2 inch

Asked by: GM
Hello! No, radiant floor heaters are units design with a different heating element. Our diaphragms will not handle to much heat. They will fail after a while from hot water running through the water valve. That's why they are use with cold water lines only. For more details, please contact Marey's Customer Support at Toll-Free Phone Support - USA: +1 (855) 627-3955 or through email: customerservice@marey.com
Answered by: Marey Product Expert
Date published: 2019-01-16

Can this be used in a mobile home with 2 baths,washer and dishwasher 950 sq.ft. single wide mobile home

Asked by: Kat
Yes
Answered by: Berry
Date published: 2019-02-05

Can this hot water heater be put under a kitchen sink?

Can this hot water heater be put under a kitchen sink?
Asked by: themainevent
No, under the kitchen sink it wont be practical. Is a gas water heater and the combustion process will need air and will generate gases and fumes.
Answered by: Danno
Date published: 2018-10-04
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Customer Reviews

2.0 GPM Natural Gas Tankless Water Heater is rated 3.5 out of 5 by 8.
Rated 5 out of 5 by from I love the tankless waterheater. Its a space saver and always have hot water. I love the tankless waterheater. Its a space saver and always have hot water.
Date published: 2019-02-05
Rated 4 out of 5 by from 4 Star Review Rating provided by a verified purchaser
Date published: 2019-02-06
Rated 1 out of 5 by from Not a good unit It's okay as far as using it for the sink or taking a bath but taking a shower is a no go.We just had this installed and when we tried to shower last night it was either scalding you or you were freezing. Messed with the settings and it didn't help. Also you have to have the unit set on winter because the summer setting does not provide enough heat. The unit turns itself on every time you turn on the hot water but if you turn the cold water on full blast it shuts the gas off so you are back to freezing. I do not recommend this product.
Date published: 2017-05-29
Rated 4 out of 5 by from 4 Star Review Rating provided by a verified purchaser
Date published: 2017-04-04
Rated 1 out of 5 by from This unit says it would be big enough for a small house , but it could not keep up with a normal... This unit says it would be big enough for a small house , but it could not keep up with a normal shower.
Date published: 2017-06-06
Rated 4 out of 5 by from Small volume water heater, simple install, works great at the... Small volume water heater, simple install, works great at the cabin.
Date published: 2018-03-28
Rated 4 out of 5 by from Contributes to the universe's entropy very well.... Contributes to the universe's entropy very well.
Date published: 2018-05-22
Rated 5 out of 5 by from Satisfied The product has met our expectations to satisfactory degree
Date published: 2017-05-09
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