Due to my recent interest in metalworks, i've decided to make a foundry, opting for a gas powered one as the fuel is easier to handle. Does using butane instead of propane make any significant difference to the heat output? I live in Australia, and i can't seem to find much propane around, but LPG (Liquified Petroleum Gas), which is a mix of butane and propane, is available at pretty much all gas stations. Can i use LPG and still get the same power out of my foundry as a propane powered one??
btw, if anyone is reading this and lives in Australia, could they point me in a direction where i can get some fireclay, furnace bricks or castable refractory cement?
Thanks
Wilson