Al, I am glad you found some relief from you fridge issue. I have found that running the refrigerator on propane is faster than waiting for it to cool down using electricity. When I am getting ready for a trip I turn on the fridge with propane and bring it down to temp. After loading on the food I will switch over to electricity to maintain the temperature.
When traveling make sure your setting is on "Automatic" and open your valves. Some folks here caution against running with the fridge on propane but most of us do and that is how the system was designed and no one has yet to provide any evidence of an accident caused when using this method.
There is also a switch that activates some kind of defrosting mechanism although I have yet to see any real results from this. If this is "on" it will draw more electricity. If you are boondocking make sure it is off. If plugged in it doesn't matter.
Airstreams are very good trailers but they are not perfect. The problems you listed have more to do with the appliances Airstream installed than anything to do with quality build issues. Your dealer should step up and fix the hot water heater. If they don't then it becomes an Airstream problem.
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