Don't tell Ed Begley Jr. but I didn't buy the A. O. Smith Vertex 100 hot water heater to be green. I didn't even pick it to save money! Truthfully, we decided to buy this high-tech, 96% efficient water heater so we would have plenty of hot water. But of course the energy savings are nice, too! The Sad Truth About Water Heaters Water heaters are giant tea kettles. Nearly … [Read more...] about A High-Tech Water Heater? Yep! Introducing the A. O. Smith Vertex