We had Oxy/Propane torches at work to cut, well actually melt, the aluminum extrusions between billets with a rosebud tip before we got an automatic shear setup. Anyway, you need a different tip for Propane, Acetylene tips won't give you enough flow IIRC. Just go to your welding jobber and ask. We ran hard lines from the 500 gal tank outside to the cutting station where the regulators/gauges were along with a spring loaded torch hangar that shut off the gas when hung up (gas saver valve). I know this may be a little overkill for your application but, maybe a modified version? If you really want a hot torch go with Propylene, it comes in white bottles. We used that stuff in the Maintenance Department. We also had 100' hoses, you'll need to adjust your pressures a little to overcome friction loss.
https://store.cyberweld.com/smith-g...MIk-_p4u_h6gIVE9bACh1cHQPxEAQYBCABEgLCo_D_BwE
Here's an interesting article...
https://www.wilhelmsen.com/marine-p...reparation/gas-welding--acetylene-vs-propane/
https://store.cyberweld.com/smith-g...MIk-_p4u_h6gIVE9bACh1cHQPxEAQYBCABEgLCo_D_BwE
Here's an interesting article...
https://www.wilhelmsen.com/marine-p...reparation/gas-welding--acetylene-vs-propane/