Personally, I don't deal directly on the phone with customers with what I do, but there's enough of my co-workers around me that do, so I know how much abuse they take from irate customers. But understandably so. No one really thinks about their hot water until it's gone- taking showers, washing hands, clothes and dishes are rather mundane activities but if you can't do any of that, things deteriorate rapidly; so it's our job to try to restore that hot water as quickly as possible and keep our customers satisfied. Of course doing this is costly, which is part of the complaints.
Anyway, when one of our heaters goes bust or isn't up to snuff, they get returned to us. About 10 years ago, this fountain was created with returned tankless heat exchangers. A very out-of-the-box recycling endeavor... I know... water heating is a tankless job... (HAR!)
