There's nothing combustible around it and we've taught our 3 year old twins not to throw anything near the stove. But the do like to stand in front of it when they come inside from the cold!!
Are your twins boys or girls? If boys hang on. My son grew up around our Buderus hand fed. The 1st Christmas of soon to be expected Christmas cards, featured the little devil in front of it in what kids that can't move much sit in.
Then came his curious years
He had one of those balls with a handle you push around and the balls move like a popcorn machine inside, do not know if they still exist no grandchildren yet
Well he thought to drag that across the glass of the coal stove, left a nice black streak that burned and smelled bad. He panicked threw the toy behind the couch and did what he did best, like nothing ever happened. We smelled the burning plastic, found the toy and the rest is history. He is now 29 years old and his girlfriends problem
She just got a house and his fun will begin, really it is all good and I am very proud of them both. Maybe a Keystoker KA-6 in the near future, kind of like a coal grandkid