My 1st Homemade Smoker

I made this smoker after looking at some of the store purchased one and found them to be made cheaply. After doing some research and watching videos I arrived at this one. It is a reverse smoker made from a air tank and 1/4" plate steel welded all together. Currently as I write this, I am having some trouble keeping the fire in the box going strong and can not reach a good temp of about 225 degrees without a lot of work. That is how I found this site as I search for answers. I hope you enjoy seeing my very 1st smoker & 1st build. Thx