I brew in the garage and consider it to be outdoors. Brewing on my stove in the kitchen or down in the basement with my burner would be indoors for me - I choose to do neither.
I really open up my 210K Banjo and I just don't feel comfortable having it in the house. The 10 ft. ceilings in the garage make me feel much better about it. Fire extinguisher is always nearby but I haven't had to use it yet. <knock on wood>