In The Nightmare On Elm Street movies, why do they always show a boiler room?
Go sit in a corner and think about your life.
That's where Freddy worked when he was alive.
That is where the people killed Fredrick. He also lives there now. His glove is often seen in the furnace.
Because that was a where Freddy had died. He was chased into the boiler room by Springwood's parents who accused him of Murdering their Children (or if you have watched the remake, molesting Children) and, the parents took it into their own hands and decided to kill him by throwing a petrol bomb into the boiler room. He was burnt alive. Now, he dwells the dream world, the boiler room being the form his own version of the dream world. He and only he can control the dream world
