[SEL] Firing a Kiln

[Richard Strobel]

G'day all;
  Well I would up with a small kiln the other day....very similiar to 
Keith's:

http://www.herculesengines.com/Foundry/Foundry%20Images/2002_0619_185133AA.jpg

  The only piping coming out goes into a "T" fitting.  Question is,  How 
much air and propane does one use?  i.e. pressures.  I'll be drawing off my 
500 gallon propane tank once I know what flavor of regulator to use and the 
required pressure/volume.

  Thinking of using a heat gun for air...possibly too small of volume.

Appreciate any advise!

RickinMt.

PS: Will start with AL and hopefully graduate to brass.