Terry Blanton wrote:
The entire Ga Tech campus used to be heated by an underground hot water distribution system.
Cornell still is, only they use steam. Large parts of New York City are heated by steam. They used to use waste steam from Con Ed generator plants. This is co-generation, sometimes called "district heating." I think nowadays the electric generators near the city are mostly gas turbines. I think I saw somewhere a photo of a Con Ed steam boiler used for their district heating market.
Ten or 20 years ago there were some large school buildings in New York City heated by coal, in furnaces stoked by the building supers, who were old guys. I expect the furnaces were replaced when the last of them retired.
- Jed
