> I have a 12K BTU HydroFlame in my '83 ASI diesel camper.  I have not
> used it, but the PO said that it would use a full tank of propane in 3-4
> days.

I doubt it will run for 3-4 days continuously... even my 3,000 BTW Olympic
heater won't run that long continuously.... maybe half that long.
You might want to check it out before depending on it for heat on a cold 4
day weekend :)

Bill