AO Smith GDV40

GDV-40 40 Gallon Promax Direct Vent Residential Water Heater

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GDV-40 40 Gallon Promax Direct Vent Residential Water Heater

Model: AO Smith GDV40 Compare
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Quick Specs:

  • Width: 22.25"
  • Height: 68"
  • Depth: 22.25"
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ProMax direct vent residential water heaters feature a one-pipe, dual-channel closed-combustion system that draws all make-up air from outside of the home, eliminating problems caused by insufficient indoor ventilation.


Today A. O. Smith is one of the world's leading manufacturers of residential and commercial water heating equipment, offering a comprehensive product line featuring the best-known brands in North America and China.


  • FVIR compliant
  • Horizontal air intake and venting on all models up to 80 inches from outside wall, with no electrical power needed
  • Push button Piezo igniter -makes lighting pilot fast and easy with one hand push button spark ignition
  • Factory installed heat trap nipples
  • Dynaclean diffuser dip tube - reduces lime and sediment buildup, maximizes hot water output. Made from long-lasting PEX cross-link polymer.
  • Green Choice gas burner -patented "Eco-Friendly" design reduces NOx emissions by up to 33%, complies with Southern California and Texas requirements
  • Durable tamper-resistant brass drain valve
  • Permaglas glass coating -protects steel tank from rust
  • Factory installed temperature and pressure relief valve


  • Fuel Type: Natural Gas
  • Tankless: No
  • Capacity (Gallons): 40
  • Width: 22.25"
  • Depth: 22.25"
  • Height: 68"


  • Brand:AO Smith
  • SKU:GDV40
  • UPC:671657030384
  • Stock Id:307902


  • Fuel Type:Natural Gas
  • Capacity (Gallons):40
  • Tankless:No


  • Width:22.25"
  • Height:68"
  • Depth:22.25"

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