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ProLine® XE Ultra-Low NOx Power Vent 40-Gallon Gas Water Heater

ProLine® XE Ultra-Low NOx Power Vent 40-Gallon Gas Water Heater

ProLine® XE Ultra-Low NOx Power Vent 40-Gallon Gas Water Heater

Model GPNH-40

ENERGY STAR

The ProLine® XE Ultra-Low NOx gas water heater delivers an efficient, reliable performance and features an innovative design that protects against accidental ignition of flammable vapors..

Featuring a 40-gallon (nominal) tank and a 42,000 BTU gas burner, the GPNH-40 Power Vent delivers a first hour rating of 69 gallons and a recovery rate of 42.6 gallons per hour. With an 0.70 Uniform Energy Factor, this water heater is ENERGY STAR® qualified. It carries a 6-year limited warranty, and meets Ultra-Low NOx emission requirements.

Where to Buy

Where to Buy

Location Unknown

A.O. Smith products are available through independent plumbing contractors.

Enter your city and state or zip code below to find a local installer.


Is this enough hot water?

info
Number of minutes you can enjoy a shower before running out of hot water. Assumes a 2.2 GPM flow rate.

Need to view or change our assumptions? Access the advanced settings.

minutes

single shower length

info
Number of back-to-back showers you can take without running out of hot water. Assumes a 2.2 GPM flow rate and an 8 minute shower length.

Need to view or change our assumptions? Access the advanced settings.

showers

back-to-back

info
Number of showers you can take at the same time without running out of hot water.Assumes a 2.2 GPM flow rate and an 8 minute shower length.

Need to view or change our assumptions? Access the advanced settings.

showers

at the same time

info
Biggest tub this water heater will fill without running out of hot water. Assumes a 5.0 GPM flow rate, and a 67% fill level.

Need to view or change our assumptions? Access the advanced settings.

gallons

maximum tub size

info
Number of minutes required to fill a 55 gallon tub. Assumes a 5.0 GPM flow rate and a 67% fill level.

Need to view or change our assumptions? Access the advanced settings.

minutes

time to fill tub

info
The estimated annual cost to operate this water heater in Fairfield, CT.

Need to view or change our assumptions? Access the advanced settings.

$

estimated energy cost

Many factors affect the actual performance of a water heater. This represents our closest approximation of your likely experience with this water heater in Fairfield, CT, but actual performance may vary depending on factors beyond our ability to control or estimate. To view or adjust our assumptions of the most common factors that impact this product’s performance in Fairfield, CT, please view the advanced settings. *Annual energy costs are estimated from the energy efficiency of each water heater, your household’s estimated water usage & set temperature, the average groundwater temperature for your location, and residential energy prices as reported by the Department of Energy.

Product Features & Options

DynaClean™ Dip Tube

Helps reduce lime and sediment buildup, maximizes hot water output. Made from long-lasting PEX cross-linked polymer.

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

• Solid brass, tamper resistant, enhanced-flow, ball type, valve.

• Uses a standard female hose fitting that allows for fast and easy draining during maintenance.

• Screwdriver slot features a 1/4 turn radius, for straight-through water flow and a quick and positive shut off.

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.

Certifications

6

year

limited warranty

0.70

Uniform Energy Factor

CSA International Low Lead Content Certification in compliance with U.S. and Canadian safety standards on gas components

Product Specifications


Tech Specs
Nominal Capacity:
?Nominal capacity is the representative number pursuant to the safety standard certification process for water heaters
 40
Rated Storage Volume
?Rated Storage Volume = Rated storage volume is the measured storage volume defined by the Department of Energy.
 38
UEF 0.70
Maximum BTUs: 42,000
Power Source: Natural Gas
Limited Tank Warranty: 6 Years
Limited Parts Warranty: 6 Years
Anode: Coregard Aluminum Anode
T&P Relief Valve: Yes
Pilot Reset Button: Yes
Water Connection Location: Top
Water Connection Size: 3/4"
Emissions: Ultra-Low Nox
LEED Rating: 1
ENERGY STAR®: Yes
FVIR Certified: Yes
First Hour Rating: 76
Dimensions & Venting
Type: Tall
Height: 58 5/8"
Height w/Draft Hood: 66 7/8"
Diameter: 20"
Width: 20"
Depth: 20"
Vent Type: Power Vent

Incentives

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.

Photos

Please click here to download the hi-resolution images.

Need More Hot Water?

There's no reason to run out of hot water. If you're not sure that the GPNH-40 provides enough hot water for your needs, consider these:

ENERGY STAR

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

GDHE-50
  • 6 Year Limited Warranty
  • 100,000 BTU
    •
ENERGY STAR

ProLine® XE Ultra-Low NOx Power Vent 50-Gallon Gas Water Heater

GPNH-50
  • 6 Year Limited Warranty
  • 42,000 BTU
    •
ENERGY STAR

Vertex™ 100 Power Direct Vent 75-Gallon Gas Water Heater

GDHE-75
  • 6 Year Limited Warranty
  • 100,000 BTU
    •