Originally Posted by Rorzech
Actually you can't use hose for any permanent installation
and you can't run it through walls or ceilings either. If you use it for a portable appliance then maximum length is 30 feet. Your propane
must be in it's own compartment vented to the outside only, or in a rack hanging off your boat. That's a few rules you might run into. But there's many more.
I am not sure if you are referring to homes or boats.
For a permanent installation
on a boat the approved hose or copper can be run behind any cabinets etc. Must be supported and chafe protection must be used where it passes through bulkheads etc. Length is not an issue.