Fully independent refrigerator-freezers; available in LP gas, these high quality refrigerator require no electricity, which is ideal for use in remote cabin or cottage, on the farm or ranch, or for emergency back-up situations. The ammonia absorption cool
In addition to numerous independents up around this part of the state willing to work on your RV ammonia fridge, the Amish also have them. Mention that cause Berne is a bit further south if that's better for you.
Great Grandma had an old Serval (before Dometic) in the house for years, today that thang would be worth it's weight in gold to the Amish and believe me when I say that thang weighed....
With that said, I haven't had interaction with either of the businesses I've mentioned in over 20 years, they may not even be ran by the same people today.