Electric Tankless Water Heater

[Tulecreeper]

Yes, you can install a tankless water heater that runs on 50 amp 240v power and run a separate power connection to shore power specifically for the water heater. This setup would allow you to cut off propane usage and provide a more efficient and longer-lasting source of hot water for your camper.

Unless, like many with tankless WH's in their RV, there isn't enough water volume to keep the thing turned on. It's a common enough problem that I will not even consider a tankless WH in the TT we're going to buy.

 

[8Muddypaws]

I'm curious as to why you decided to replace it with a high current tankless rather than repairing or replacing the existing unit. Even replacing it with a new gas/electric one would be much simpler and a bunch less expensive. Adding a breaker and a few feet of wire to supply a 1200 watt heating element should be easy.

I've seen broken backflow valves (at a few bucks each) cause exactly what you describe. Especially if you have a mixing valve.