Hi. It will depends on how cold the winter is, how long for and the size of your bin. You can always add extra insulation and increase the feeding as to generate heat. But there are limits.
As for smell it smell just the same as a small bin as long as you do things well. That is not overfeeding and always add sufficient amount of dry bedding material.
Check the following article for feeding method:
https://steemit.com/vermicomposting/@quochuy/how-to-feed-your-compost-worms
thank you for the information @quochuy. I own a vegetarian food cart and we have a fair amount of weekly scraps to compost. I think a bin like this will help a lot with our waste and hopefully can keep it indoors to compost year round. I'm going to read through your previous posts and look forward to building something like this=)
@guanyu my pleasure, let me know if you have any further questions.