Here's my new forge, about a year in the making. The table is an old, heavy cast iron table saw top, The fire pot came from a collection being sold by New England School of Metal work, left to them by a blacksmith. The smoke hood is an old 50 gallon drum and the chimney is a 10 inch, double walled duravent inside and through the roof and 24 gauge galvanized above that and is around 15 feet high from the top of the smoke hood. I had a lot of help with the chimney from my son. You're looking at the very first fire, once the hood and chimney heated up the draft worked great. I've got an old under the counter heater squirrel cage 2 speed blower on it for now.