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AO Smith GDHE-50-NG

By: Carl Laron on September 11, 2017

Bottom Line Though relatively expensive compared to conventional storage tank gas water heaters, condensing gas hot water heaters like AO Smith GDHE-50-NG can cut fuel costs by around 30 percent. Part of AO Smith's Vertex line, the GDHE-50-NG is Energy Star Qualified with a thermal efficiency of 96 percent.
Pros
  • Energy Star qualified
  • Fast recovery time
  • Meets California ULN standards
Cons
  • Pricey
  • Warranty only six years