I recently purchased a little Torch which I have set up with
disposable propane and oxygen bottles. I am finding that the oxygen
gets used up very quickly. I am now on my fourth bottle of oxygen
and still on the first bottle of propane. The propane bottle is 400
grams and the oxygen bottle holds 40.1 grams. These are the
Bernzomatic type small disposable cylinders. At $10.00 (Canadian) per
bottle of oxygen, the cost is much higher than I would have hoped.
A couple of months ago I did a combustion calculation, balancing H,
C and O molecules (I’m a Chemical Engineer) and worked out that it
would take about 36 (40 gram) bottles of oxygen to one (400 gram)
bottle of propane. I am hoping that I made a mistake.
Can any users of the little torch please tell me what their actual
experience has been. i.e. how many bottles of oxygen have you used
per bottle of propane and what is the actual propane weight of gas
in the bottles?
Also, I am thinking of switching over to compressed air and propane.
(I do know about the safety hazards of later switching back to
oxygen) Does anyone out there run propane/ compressed air with a
little torch and how do you do it.