Originally Posted by raoulwv
I have a friend who just purchased a used Palomini 180FB. We've looked everywhere for a switch to turn on via AC and can't find one. I also noticed there is no breaker for a hot water heater. Is it possible it's propane only?
Yes, it could likely be propane only. If it's a Suburban brand water heater, this FAQ could help, in case it does have an electric heating element and where to find the switch for it.
Suburban's electric switch and much more
The brand and model number of the water heater will tell the story, if you have access to that information.