Quoted from Whysnow:what brands do you rec?
Go with the Rannia, worth the extra couple of bucks. Rannia comes with the flush valves that are required, other brands don’t include the valves and they cost 80-100 extra. I have a RU-98i and it’s been flawless, I’ve installed dozens of Rannia tankless and not one issue, make sure your installer puts a surge protection device on the electric feed, these units are computer controlled and power surges will cause issues, 60.00 additional but saves the electronics in case. Unit come with a strainer on the cold feed side, but not a bad idea to have a main line filter if you don’t have one already. Very easy to winterize.
