I know for a fact that lots of people convert closets into incubators with perfect results in keeping temps stable. I already have a professionally made hotbox incubator but After this season I need something bigger and rather save the 1000+ dollars for more snakes instead of getting a bigger one. It's not a walk in closet it's small. Probably 3'x3' and the height of probably your average doorway. Also no exterior walls which is good. Can easily be heated with just flexwatt along the back and bottom, just need to insulate alittle. Was just looking for some ideas/pics cause I know there's definitely more people on here that have done it!