[Jewelry making - Article 00143] - Re: [Orchid] Little Torch Oxygen Use

[Milt Fischbein]

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    Thanks to all of you who replied to my post about high oxygen use. I
    have stopped buying the disposable cylinders and am planning to rent
    a high pressure oxygen cylinder.  The welding shop will deliver for
    a small additional charge and the cost of the oxygen is very
    reasonable. I wish I had taken the time to do the calculations before
    I invested  in all of those disposable tanks. I reviewed my numbers
    and am pretty sure that they are correct. For every  disposable
    bottle of propane which weighs 400 grams and costs about $4 cdn, one
    needs 36,  disposable bottles of oxygen, each containing 40.1 grams
    of O2. At $10 per disposable O2 bottle, one would need about $360 of
    oxygen for $4 of propane, or $90 of Oxygen for every dollar of
    propane burned. In the high pressure cylinders, the same amount of
    oxygen is about $30!!!!! 

    I also heard from a local Calgarian, Orchidian (Karen Seidel-Bahr)
    who stores her gases outside.  She has invited me to drop by and see
    how she has installed the gasses.  I agree with her philosophy of
    keeping combustible gasses outside of your home. 

Regards
Milt Fischbein
Calgary Canada

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