Does anyone know how many litres of propane a 47 kg cylinder contains? (These are the standard large red ones which some caving club hostels use for their cooking & heating gas supply.)
Thanks - I ought to have explained that I was trying to compare the price per litre for bottled gas compared with the price per litre for bulk delivery. (Propane in bulk deliveries is sold by the litre). So I guess Fulk's quoted figure is what I want?
Propane must have a pretty low density (compared with, for example, water) if 47 kg of the liquid is 92 litres in volume.
Well, Burt you're right about the volume of a cylinder; however, I guess that the walls of those things are quite thick, and the external dimensions might not be a true reflection of the internal ones (?).
It is in liquid form in the 'gas' bottle. It is not 100% full though, there is a vapour space in there too.
The rule of thumb in a car is that the tank is never more than 80% full, but I don't know the rules for a gas bottle.