re: Best tankless natural gas water heaters?

I’m sure notsince98 statement is correct - but I’m just going to throw this out there - last year, this month, I had a Navien tankless, natural gas, with built in recirculation pump, installed.

My BIL, a plumber, installed it, but he never installed that brand before; however, his brother also a plumber, operating a larger plumbing business in New Orleans, suggested the Navien tankless as they had started installing them, and they, as a plumbing company, and their customers, were happy with them. They can operate on a standard natural size gas line (1/2 inch?) used for tank water heaters whereas many other brands of tankless require a larger gas line be installed - just something to be aware of and consider in your selection.

ETA: I also have two water heaters, but I decided to keep 1 tank gas water heater, (I replaced both) that services the kitchen area and another full bath in a separate area of the house so that that I could be confident I’d have hot water during long term hurricane power outages as I don’t have a whole house standby generator. Just another consideration to mull over.