Model # GA16NGETL

Internet #205442760

MAREY 4.3 GPM Natural Gas Tankless Water Heater

Discontinued MAREY

4.3 GPM Natural Gas Tankless Water Heater

  • Rustproof, no water loss due to leaks providing on demand water
  • Can last a lifetime, keeping up to 87% efficiency level
  • Same-day installation in most areas. Call 1-855-400-2552 by noon.
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Frequently Bought Together

Product Overview

The MAREY GA16NGETL Indoor Natural Gas Tankless Water Heater can provide up to 4.3 GPM 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 to supply endless hot water for up to 3 or 4 points of use simultaneously (for a variety of residential hot-water applications). Its compact design saves space and is easy to install (please note that a 110-VAC is needed). MAREY has been on the water heating business since 1955, bringing tradition and innovation together.

  • Unit has to be installed by a certified professional
  • Compact design saves space and allows for easy installation just about anywhere
  • Tankless heater can heat an 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
  • Can last a lifetime, keeping up to 87% efficiency level
  • Rustproof, no water loss due to leaks
  • Tankless heater saves water and up to 60% in the water heating bill than conventional tank water
  • Metallic silver cover
  • Digital panel showing output water temperature
  • ETL certified
  • Determine the proper Tankless Water Heater for your household by using our buying guide

    Marey Tankless Water Heater

  • Use our temperature map to calculate your Gallons Per Minute

    Marey Tankless Water hEater Temperature Map

  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Name 4.3 GPM Natural Gas Digital Panel Tankless Water Heater 4.3 GPM Natural Gas Tankless Water Heater Deluxe on Demand 4.4 GPM 85,000 BTU Propane Gas Tankless Water Heater 6.4 GPM Natural Gas Mid Efficiency Indoor Tankless Water Heater
Brand MAREY MAREY EZ Tankless Rheem
Ratings (12) (4) (10) (9)
Indoor/Outdoor Indoor Indoor Indoor Indoor
Gas Type Natural Gas Natural Gas Liquid Propane Natural Gas
Flow Rate @ 45 F Rise (gallons/min) 3.25 3.00 3.4 5.6
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Product Depth (in.)
Product Height (in.)
Product Width (in.)
Vent diameter (in.)
Water Connection Size (in.)


Application Type
Electric Product Type
Commercial & Residential
Energy Factor
Finish Family
Silver Metallic
Flow Rate @ 35 F Rise (gallons/min)
Flow Rate @ 45 F Rise (gallons/min)
Flow Rate @ 55 F Rise (gallons/min)
Flow Rate @ 65 F Rise (gallons/min)
Fuel Type
Gas Connection Size
Gas Type
Natural Gas
Maximum Temperature (F)
Minimum Activation Rate (gpm)
Minimum Temperature (F)
Pilot Light
Product Weight (lb.)
Total BTU
Vent Type
Type B Double Wall
Water Connection Location
Water Heater Features
No Additional Features

Warranty / Certifications

Certifications and Listings
ETL Listed
Labor Warranty
1 Year
Part Warranty
5 Year

More Products With These Features


Customer Questions & Answers

will this heat enough to fill a bath tub

Asked by: dewin
Yes. I have this unit and it produces fine for the tub. We have a problem getting hot water through the shower and some bathroom faucets without running an extra faucet. I think a lower flow unit might be better for most cases.
Answered by: JP
Date published: 2016-04-22

which gas heater is the correct one to install for covered patio to heat up sink water and outdoor shower?

Asked by: ben
Much lower flow than this.
Answered by: JP
Date published: 2016-04-22

Is there a part number for vent pipe for thru roof is return air vent standard 3 inch galvanized

Asked by: tim
This unit requires 3 inch single wall stainless steel venting.
Answered by: Marey Product Expert
Date published: 2017-05-19

What size line do i need from 15 feet away

I have 3/4 coming to room
Asked by: tim
1/2 inch - 3/4 inch
Answered by: Marey Product Expert
Date published: 2017-05-19
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Customer Reviews

4.3 GPM Natural Gas Tankless Water Heater is rated 3.5 out of 5 by 4.
Rated 4 out of 5 by from So far so good We use the LPG version since propane at this time of year is outrageous! We live in a mountain home and can shower and bath and still have nice hot running water. Automatically adjust water pressure to try and maintain a uniform heat flow. No complaints so far ... now to see if it saves LP gas bill.
Date published: 2015-01-13
Rated 4 out of 5 by from Works for me My old water heater sprung a leak and I couldn't find a replacement that fit into the same space. So, I decided to try a tankless heater. This model fit my needs. It has been in service for about 6 weeks with no problems. Warranty requires professional installation.
Date published: 2016-02-11
Rated 5 out of 5 by from Great Buy !!!!!!!! Great Product !!!!!!!! The Installation was easy, and is working great !!!!
Date published: 2016-01-20
Rated 1 out of 5 by from Very bad product I bought it 2 months ago, installed yesterday because of my lazy plumber. It does not include any vent kit, to collect correct pieces took weeks. Finally I was ready to try, in first use i got e2 error, continued to try but never got hot water.I trusted reviews in homedepot but if you check other websites you will see how terrible product it is. I bought low gpm eccotemp with black glass for downstair, it was really cool but to take hot water you should consume 3 gallons, i think i m not ready for tankless i will go for tank
Date published: 2016-02-05
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