Thanks for the reply and welcome! Yes, I'm in Z 7. Winters don't get too cold but I guess cold enough to hurt the worms. Summer is usually pretty warm. Is cold worse than heat for the worms? I do have a shed but it's not insulated, so it does have extreme temperature changes. I have a unfinished basement that stays in the 70's in the summer and doesn't freeze in the winter but does get well below 55. Could I do something in there? Maybe in the house in the winter and in the basement in the summer? That would be a pretty consistent temperature.