I don't know why everyone keeps trying to convince me to keep the existing system, there's one simple reason I am swapping: my wife WILL NOT GO ON THE TRIP if I don't install this. I am not joking. Depreciation doesn't matter here, justifying navy showers doesn't matter, etc. She has decided she wants reliable hot water so I will make it happen!
The outdoor shower hose isn't connected, so I would think its off but I can check. It seems to last long enough for me to shower, but not for her hence the tankless upgrade.