Replace instant hot with standard water heater?

PA12DRVR wrote:
No dog in the hunt but what is the beef with an instant vs. traditional water heater?

With the instant hot you have to maintain a certain volume of water flow or else it won't activate. If you take Navy showers, no hot water. If you trickle a little hot water while doing dishes, no hot water. Insufficient water flow in both of those scenarios.