ProDave
Well-known member
Just a word of caution for people swapping Calor 4.5 Butane to 3.9 Propane.
The Butane cylinder has a connection that uses a rubber washer to seal the connection. The Propane has a POL connector which is a brass to brass connection and relies on it being an accurate and tight fit. There WILL be some gas leakage with the POL connector.
So a Propane cylinder is ONLY suitable for a properly sealed and vented gas locker.
One would hope on a boat, that your gas locker is properly sealed and ventilated, but it certainly used to be the case that a lot of camper vans had an internal gas locker, e.g. under a seat that was not properly sealed and ventilated and would have been very bad to fit a propane cylinder in there.
The Butane cylinder has a connection that uses a rubber washer to seal the connection. The Propane has a POL connector which is a brass to brass connection and relies on it being an accurate and tight fit. There WILL be some gas leakage with the POL connector.
So a Propane cylinder is ONLY suitable for a properly sealed and vented gas locker.
One would hope on a boat, that your gas locker is properly sealed and ventilated, but it certainly used to be the case that a lot of camper vans had an internal gas locker, e.g. under a seat that was not properly sealed and ventilated and would have been very bad to fit a propane cylinder in there.