The vents for the basement furnace had been covered with plastic bags to keep the wet concrete out, said the spokeswoman, Ilyse Fink.
The sled, thought to be junk, is burned and destroyed in a basement furnace by Xanadu's departing staff.
Installed in walls, ceilings and floors, the grilles enabled hot air, created by the basement furnace, to circulate from room to room.
He said the money was withheld until Conley had burned Phagan's body in the basement furnace.
Three years later, in 1919, a malfunctioning basement furnace caused a fire which did significant damage to the interior.
He is also alleged to have burned six political opponents alive in his basement furnace.
The combination of the restaurant circular, the soundproof room, and the two skeletons in the basement furnace was no mere coincidence.
Mr. Gourdine was a father of two grown children, a tinkerer who had built his home's cement porch and barbecue and replaced the basement furnace.
In New York, where apartment residents often have only foggy ideas about the status of basement furnaces and neighbors' appliances, detectors are suddenly must-haves.
The body is found being burned in the basement furnace.