Let’s have some fun with bad ideas. Don’t use a standard wood saw—the teeth will dull in seconds. Don’t use a blowtorch—cast iron hates heat and might explode in a nasty, chunky way. And never use a sledgehammer unless you want a pipe-shaped shrapnel problem.
Seriously, heat is the enemy. Cast iron is brittle. It cracks if you look at it wrong while it’s hot.
