Re: Why doesn't anyone use propane refrigeration on a boat?
In North America propane water heaters don't meet approval either. With a stove or open flame heater it is assumed that you are there. With a fridge you often won't be.
For example for a water heater to be allowed it has to have a closed combustion chamber and no pilot light. No water heaters that I know of meet these requirements with the exception of one where they say a closed combustion chamber is available.
Living aboard in Victoria Harbour