I have been using a small whitlox forge Link to forge (using primarily hardwood charcoal) pulling it in and out of the garage, i want to build a chimney/hood so i can put it inside. But have no idea where to start. The forge itself is 16x16x9 What flue size should i use? And what type of hood should i use? (i was thinking an overhead with enclosed sides around the forge so sparks/ash are more contained) Any thoughts/advice would be very helpful!