So I was initially making a soup can forge, but due to a severe lack of financial resources, and a pre-existing abundance of fire bricks (a collapsed chimney that my landlord sealed off rather than repair) I decided to put the gas forge on the back burner for the time being and pursue this avenue. I am just wondering if it is feasible or not, and if 3" of 1" pipe is big enough for air supply to my relatively small heating zone. Included is a picture of the base of my forge. I have left it where it is so far to consult here before I continue so I can find out if it will become a forge or a chiminea/coal oven. Thanks in advance, Michael