ProMax® SL Power Vent 74-Gallon Gas Water Heater

ProMax® SL Power Vent 74-Gallon Gas Water Heater

Model GPS-75L

ProMax SL Power Vent Gas Tank Water Heater GPS-75L is rated 3.0 out of 5 by 2.
Rated 4 out of 5 by from Stopped heating... Installed 6/2010. Stopped working 1/17/2014. Searched warranty...Trying to find a service provider
Date published: 2015-01-17
Rated 2 out of 5 by from Insufficient hot water I bought this AO water heater 10 months ago to replace a previous AO water heater that had worked great for 16 years before it quit.  This is a 200 gallon capacity model GPS 75 200.  It was installed by a plumbing company.Unfortunately, after one person takes a bath, too bad for the next person in our house as it will be at best a luke warm bath or shower.  Much worse if a load of laundry was done within the hour or so before taking a bath.  This water heater does not recover as quickly as the old unit.We have had the installer / plumber come out to the house and no problem found with the water heater, and it was suggested we change our use pattern as this was the issue, not the water heater.  Well, I'm not sure that is the issue, as our use pattern hasn't changed in the 17 years we have lived in the house, if anything, fewer people live here now.  No question, this water heater is not the same as what we had before.
Date published: 2014-02-16
  • 2015-03-29T08:08CST
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  • loc_en_US, sid_GPS75L, PRD, sort_featured
  • clientName_hotwater

Featuring a 74-gallon tank and a 80,000 BTU gas burner, the GPS-75L Power Vent delivers a recovery rate of 86 gallons per hour. It carries a 6-year limited warranty, and meets Low NOx emission requirements.

Where to Buy

Where to Buy

Woodbridge, NJ 07095

Location #1


Edison, NJ

Se Habla Español

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Location #2

William J. Guarini Plumbing

Jersey City, NJ

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Location #3

Authorized Heating

Brooklyn, NY

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View All List My Company Here

Product Features & Options

DynaClean™ Diffuser Dip Tube

Thanks to the improved technology, the inlet tube features water jets that redirect incoming cold water into the tank, creating turbulence, which helps reduce lime build-up, therefore maintaining heater efficiency.

CoreGard™ Anode Rod

A. O. Smith’s anode rods have a stainless steel core that extends the life of the anode rod allowing superior tank protection far longer than standard anode rods.

Brass Drain Valve

Our brass drain valve is more durable and tamper-resistant than an ordinary plastic drain valve, which contributes to improved safety and reliability.

T&P Relief Valve

Top-mounted T&P relief valve available as an option.

How it Works

Gas water heaters heat water by burning either natural gas or LP (propane). Gas water heaters need a source of air and also need to be vented properly. Cold water enters the water heater through an internal “dip tube” which forces the cold water to the bottom of the tank and pushes hot water out through the outlet connection. This arrangement provides the most hot water for a given tank size. Most gas water heaters use a pilot light. The pilot light on some models also generates the power needed to operate an electronic gas valve. When cold water enters the tank, the temperature sensor on the gas control tells the main gas valve to open. Gas flows to the burner where it is lit by the pilot light. The air needed by the burner is supplied by the room where the water heater is installed. The exhaust gases are vented to the outside. When the proper temperature is reached, the main gas valve shuts off. Because water can corrode the steel tank, we glass line the inside of the tank and install an anode rod to help reduce corrosion. The temperature and pressure relief valve is a safety device designed to open if the internal temperature or pressure of the tank exceeds certain limits. Water heaters should be large enough to provide adequate hot water even when temperatures are cold and household demand is greatest.




limited warranty


thermal efficiency

UL Listed means that the product met UL's safety requirements
CSA International Low Lead Content Certification in compliance with U.S. and Canadian safety standards on gas components
ASME American Society of Mechanical Engineers
Green Choice is an environmentally friendly gas burner that cuts residential water heater emissions - NOx - by up to 33% and is used in both natural or propane gas water-heater models

Product Specifications

Tech Specs
Gallon Capacity: 74
Recovery Gallons: 86
Maximum BTUs: 80,000
Standby Loss BTUs per Hour: 836
Power Source: Natural Gas
Thermal Efficiency: 80%
Limited Tank Warranty: 6 Years
Limited Parts Warranty: 6 Years
Anode: Coregard™ Aluminum Anode
T&P Relief Valve: Yes
Ignition Type: Electronic
Water Connection Location: Top
Water Connection Size: 3/4"
Emissions: Low NOx
Dimensions & Venting
Type: Tall
Height: 57"
Height w/Draft Hood: 66"
Diameter: 25 1/2"
Width: 25 1/2"
Depth: 25 1/2"
Shipping Weight: 245lbs/102kg
Vent Type: Power Vent


Rebate and incentive programs provide cash-back to consumers for the purchase of appliances that meet certain energy efficiency standards. Often, these standards are tied to the ENERGY STAR® program.

Cash for Appliances is designed to encourage the purchase of energy efficient appliances. Consumers who purchase ENERGY STAR® or CEE qualified appliances can receive cash rebates. Most states are offering rebates in the $50 to $250 range.


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Need More Hot Water?

There's no reason to run out of hot water. If you're not sure that the GPS-75L provides enough hot water for your needs, consider these:


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Vertex™ 100 Power Direct Vent 50-Gallon Gas Water Heater

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Vertex™ Power Vent 50-Gallon Gas Water Heater

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