The attached picture is of my propane tank and the torch I have purchased. The system I am running is a forced air (hair dryer) forge. I have tested it out and it seems to work fine, I just want better efficiency so I can work longer. What I would like to know is what do i need as far as regulators go? Do I need a high pressure reg? Or a low pressure reg? I found a webpage from Don Fogg talking about the setup he recommends, using a high pressure reg at the tank and a low pressure reg with a needle valve and shut off close to the forge. Do I really need the low pressure reg? Or is it a preference thing? I'm almost positive that the torch itself is equipped with a needle valve and shut off so i don't need those. Also a general explanation of high vs low pressure as it relates to propane and forging would be nice as well (in lay terms, as some of the resources I have checked went over my head)
Any and all help is appreciated!