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AO Smith GPDX75L

GPDX-75L 75 Gallon ProMax Power Direct Vent Water Heater with Side Connections: Natural Gas Write a review

GPDX-75L 75 Gallon ProMax Power Direct Vent Water Heater with Side Connections: Natural Gas


Items that are currently in-transit to our warehouse, are currently in-stock at a drop-ship vendor’s, or manufacturer's warehouse will be marked as "Available". These products will ship once your order is processed (usually within 24-48 business hours). For any exceptions to this timeframe, an ETA (Estimated Time of Arrival) for your order will be emailed with accurate shipping dates in order to ensure that you are always updated and informed as to when your order will arrive at its final destination.

Quick Ship Eligible

Items labeled Quick Ship will ship within 2 business days from our East Coast warehouse. Actual delivery times will vary based on your location. If you are ordering multiple items and not all items qualify for Quick Ship, the order will ship when all items are available to ship. Quick Ship may not apply to multiple quantities of the same product.

Quick Specs: View More

  • Energy Star: Yes

Enter zip code for delivery ETA and promotions:


The ProMax family offers a wide range of water heating solutions-from models that help you qualify for gas utility rebates to high recovery models ideal for large families with high demand for hot water. And, our specialty vent gas water heater options can be installed almost anywhere in your home because they can vent up to 40 feet. Our direct vent models feature two-pipe combustion systems that draw clean air from outside the home, eliminating any worries about indoor ventilation. Available at AppliancesConnection


 All models meet the September 2010 ENERGY STAR® EF requirement
and may also qualify for local utility and rebate programs
 Dynaclean™ II dip tube optimizes inlet water pressure to minimize cold
water regions within the tank. The self-cleaning action also reduces
sediment accumulation on the bottom of the tank.
 Hot-surface ignitor is more robust and reliable than standing pilot, and
reduces energy consumption
 Built-in heat traps on the water inlet and outlet reduce the amount of
heat lost through piping
  2-inch, thick, “Environmentally-Friendly” foam insulation reduces the
amount of heat loss and contributes to overall energy efficiency
 An A. O. Smith exclusive provides superior corrosion resistance compared
to the industry-standard glasslining
 Combined horizontal and vertical vent runs up to 180 equivalent feet with
4" diameter venting (ABS, PVC, CPVC and polypropylene)
  Two-pipe sealed combustion system uses outside air, eliminating problems
caused by insufficient indoor ventilation
  Reduced NOx emissions comply with air quality management district
 State-of-the-art electronic gas control provides more precise
temperature control
  LED control light displays operation status and diagnostics information
  Factory-installed T&P and a durable, tamper-resistant brass drain valve
are positioned for service accessibility


Model Number GPDX 75L 
Series 200
Height To Top of Blower A 70-5/8
Heigt To Top of Tank B 60-1/2
Diameter C 26
Overall Depth D 33-7/8
Height to Drain E 11
Height To Gas Intel F 13-1/4
Height To T&P G 53
Height To Upper Side Connect G 53
Height To lower Side Connect H 15-1/4
Shipping lbs 277 lbs
Gallon Capacity 75
Input BTU/H 72000
Energy Factor 0.69
First Hour Rating USG 154
Recovery 90F Rise GPH  82.4


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  • Brand:AO Smith
  • Stock Id:688401
  • Product Number:GPDX75L


  • Fuel Type:Natural Gas
  • Capacity (Gallons):75


  • Portable:No

    Technical Details

  • Energy Star:Yes
  • Made in USA:No
  • Weight:292.00 lbs