We have an old chimney from a hot water heater (which was moved to the other side of the house) which I would like to cut into to recess a cabinet into the space. The chimney goes from the window level of our english basement (has its own foundation outside that of the house) through the roof above the second floor. I would like to remove the bottom part of the chimney - the first floor section, and leave the rest due to major repair costs for exterior stucco and roof. Is there a safe way to do this?