O. Ratz: Rat in a Hot Tin Can(1995)

Living in a trash can, O.Ratz and his pal Dave D. Fly try to find warmth on a cold winter night. After several attempts fail - including being thrown out of a homeless shelter and crushed by a snowplow with a freshly warmed blanket attached to it, O.Ratz and Dave stumble upon an old space heater and plug it in. Unfortunately, newspapers too close to the heater cause a fire leading to a gas explosion, sailing them off into the sky to possibly an even colder destination.