CATTY1 hit the nail on the head. Most good bombs fill the house with a vapor that can be flamable. I shut off the electric becouse of the thermasats may spark if the heat goes on. And for me it's easy as it is only 1 switch. Pilot lights are an open flame so I would not chance it.
I don't know if you have any fish but tha tanks would have to be sealed, with ours I would run a long air line from out side to keep a positive press in the tanks. Needless to say that any food human or animal must be removed from the open areas. We would take the cat food, water bowls and toys with us.
I have used Skin so soft and it does work. When Ginger was with us we would keep a wash cloth in a bag with, Skin so soft, by the door, so that when we went for a walk we could give her a wip-down before going out.