As I understand it, the problem is that acetylene bottles are far more dangerous than people realise and need regular safety checks.
I was surprised to see the contents of a screed sent to rural fire service personell re safe handling of acet. bottles especially if they have been involved in incidents (other than fire) like road accidents etc.
cheers pancho.
The reason the gas companies want to do the rental over private ownership is for safety with the added bonus that the gas 'cartels' can gouge some more dollars. All cylinders are now on data bases to ensure all compliance checks are maintained on schedule and any old cylinders returning after being 'lost' can be captured and dealt with appropriately. I know with BOC when I return an empty cylinder they know more about how long I have had it than I do !
Acetylene is seriously dangerous gas. The protocols for post fire exposure are a total pain in the arse for us in FRNSW but must be carried out because acetylene cylinders can become very unstable after exposure to fire and can spontaneously explode with spectacular results !
Acetylene -
http://www.youtube.com/watch?v=uUmLe9WCXX0LPG is pretty dodgy too just for the record -
http://www.youtube.com/watch?v=p7RNYw11XHMLike everything in life if you know your shit and are careful it is great stuff and I couldn't be without a set of 'E' s in the workshop. My rental from BOC per month is Oxy - $14.99 + GST, Acetylene $14.99, 'G' Argoshield $16.49 (latest May/13 statement)
The cost of refills - now that is another story !!! = $$$
There are alternatives as well depending on your needs. I just prefer the oxy/acetylene combo because I am old school I guess.
Any welders speak up and enlighten the unwashed !
Dave Mac