: I had a 40 gallon gas water heated installed on Dec. 10. On Dec 24, I discovered a large dent, about 5 inches across and 3/4 inches deep, in the bottom portion of the water heater. It had been concealed by the standard paperwork that accompanies a water heater. That paperwork had been taped to the side, but fell off, and that is when I discovered the dent. When I called the company I purchased if from and demanded a replacement, they brushed it off and told me it would not affect the safety or performance of the unit. Do I have a concern here?
Yes and no. I have replaced water heaters that were 15 years old that were dented from day one.
On the other hand, the dent could have damaged the lining inside your WH (the tank may have fallen or have been dropped) which could lead to premature failure.
If you're unhappy and the plumbing company that installed the WH is reputable, they should replace the tank without charging you a dime.
Good Luck. e-plumber