I am into a month long process of trying to learn about hot water heaters.
I move twice a year from one rental to another. There is a new hot water heater in my summer rental that I can not use. I have Chemical Sensitivities.
The hot water heaters in both homes I have rented in the winter are older models. One is A.O. Smith made in 2002 and no longer available. I am waiting to hear back from A.O