Step 1: Transforming the Empire State Building

Beneath each of the 6,514 windows are 6,514 radiators. Like virtually every building with perimeter heating/cooling, no insulation was ever specified or installed between the radiators and the masonry walls behind them. When the radiators were on, much of the heat they generated was literally heating the outside of the building.

Not all energy efficient solutions are high-tech. We also removed each radiator and installed an inexpensive insulating barrier that reflects 24% more heat back into the building. Not only is heat reflected into the tenant occupied spaces, in summer cool air does not seep through the masonry walls, thereby reducing the cooling load.

Additionally, every radiator is connected to a digital control system to make sure that steam consumption is only as much as is needed, allowing us to monitor the performance and function of every piece of equipment.

Next: Reusing Materials