The smell isn't nearly as bad as people think it is......of course thats just my opinion. I have seen other members complain like it was the worse thing they had ever encountered. Ms Stank don't mind it....she gets the wiff every once in a while but even to her the positives FAR outweigh the negatives (that being having to take down the lights and the smell).
Doing it in a shed, with a humidifier on will be fine. I think most of the sulfur burners are rated for about 750 to 1000 square foot of coverage so you will be fine. If the sheds bigger, just adjust your burns for longer. I also like to keep a small fan blowing just to keep air moving in my enclosed space. Don't exhaust it...just keep the air moving.
Doing it in a shed, with a humidifier on will be fine. I think most of the sulfur burners are rated for about 750 to 1000 square foot of coverage so you will be fine. If the sheds bigger, just adjust your burns for longer. I also like to keep a small fan blowing just to keep air moving in my enclosed space. Don't exhaust it...just keep the air moving.