Replaced old heater with same one does good but scale is building already even with prefilter
This was a replacement for one I had installed a couple of years ago, easy to replace after initial installation. Just be cautious and turn it off when the water supply has been off, clear the lines so as to not have a dry burn.
This is a great water heater
It creates hot water fine, however you had better have enough power to run this unit. It requires a 60amp breaker.