A chimney fire broke out into a structure fire during a mid afternoon snow storm on Thursday. Companies arrived to find heavy smoke coming from the rear of a 1½ story wood frame residence. The initial engine company laid a supply line & put 3 lines into operation on multiple floors. Vent & search crews were able to locate the fire in the walls & floors surrounding the chimney. Operations lasted approximately an hour until the fire was placed under control. Units cleared around 1500hrs after extensive overhaul was completed. No injuries - A K9 was saved by a bystander who kicked the rear door in & rescued it. Nice job sir!