ProMax® Power Vent Higher EF 40-Gallon Gas Water Heater

ProMax® Power Vent Higher EF 40-Gallon Gas Water Heater

Model GPVT-40

ProMax Power Vent Higher EF Gas Tank Water Heater GPVT-40 is rated 4.5 out of 5 by 16.
Rated 5 out of 5 by from Just got it so have to learn more. This was the Contractors choice and was approved by our contract with Home serve water heater repair plan
Date published: 2013-09-18
Rated 5 out of 5 by from Great features I bought this water heater 3 weeks ago and it works great.
Date published: 2013-10-11
Rated 5 out of 5 by from nice and hot I purchased this to replace a working Bradford-White which was 11 years old. Rather than wait for it to burst I did the preventative maintenance thing.
Date published: 2013-11-09
Rated 4 out of 5 by from Good product This is out 2nd A.O. Smith water heater in 7 years. Water heaters only last around 6 years where I live because of the water. But over all I have liked this product, out last one had a few minor problems but for the most part it always worked when we needed it to. We found a contractor that deal these products in out home town and they even installed it the same day we called! So far so good, I just hope this one last as well as the last one
Date published: 2013-12-17
Rated 4 out of 5 by from Great Peoduct I installed this water heater a month ago I am very happy with so far.
Date published: 2014-01-24
Rated 5 out of 5 by from High Quality Water Heater Unit appears to be well designed and constructed. Unit was very easy to (self) install (if you are "handyman"), with required connections very accessible. Love the 50000 BTU rating in a 40 gallon tank. We run it on the low temperature setting and never run out of hot water (3-1/2 bathrooms, but only 3 people at home now). Motor on the power vent does occasionally make a little "squealing" noise and the drain valve was not equipped with a handle. Other than that, I am completely satisfied.
Date published: 2014-02-15
Rated 5 out of 5 by from easy install, directions easy to understand very easy to install, the ao smith that was originally in my house was in there for about 20 years, smooth quiet operation
Date published: 2014-02-27
Rated 4 out of 5 by from Very quiet! Happy with product, just wish it would last longer than three and a half years!We have hard water with a softener and it is not kind to the water heater.
Date published: 2014-03-12

The Promax® Power Vent Higher EF gas water heater is engineered to maximize efficiency and deliver greater energy factor (EF), while offering greater flexibility in installation options.

Featuring a 40-gallon tank and a 50,000 BTU gas burner, the GPVT-40 Power Vent delivers a first hour rating of 90 gallons and a recovery rate of 55.9 gallons per hour. With an 0.7 Energy Factor, this water heater is ENERGY STAR® qualified. 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

More Info >>
Location #3

Authorized Heating

Brooklyn, NY

More Info >>
View All List My Company Here

Product Features & Options

3-position Rotatable Blower Outlet

Our exclusive 3-position rotatable blower outlet adds flexibility for an easy installation.

CoreGard™ Anode Rod

A. O. Smith’s exlusive aluminum anode has a stainless steel core, which protects the tank against corrosion longer than ordinary mild steel anodes.

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


energy factor

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

Product Specifications

Tech Specs
Gallon Capacity: 40
Recovery Gallons: 56
Maximum BTUs: 50,000
Power Source: Natural Gas
Energy Factor: 0.70
Limited Tank Warranty: 6 Years
Limited Parts Warranty: 6 Years
Anode: Standard Anode
T&P Relief Valve: Yes
Pilot Reset Button: Yes
Ignition Type: Electronic
Water Connection Location: Top
Water Connection Size: 3/4"
Emissions: Low NOx
FVIR Certified: Yes
First Hour Rating: 90
Dimensions & Venting
Type: Tall
Height: 63"
Height w/Draft Hood: 60 1/8"
Diameter: 20 1/2"
Width: 20 1/2"
Depth: 20 1/2"
Shipping Weight: 176lbs/80kg
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 GPVT-40 provides enough hot water for your needs, consider these:


Effex® High Efficiency 40-Gallon Gas Water Heater

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Effex® High Efficiency 50-Gallon Gas Water Heater

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

  • 6 Year Limited Warranty
  • 100,000 BTU

Vertex™ Power Vent 50-Gallon Gas Water Heater

  • 6 Year Limited Warranty
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