Wait, my memory is really fuzzy, is this type of heating a thing in Hartford, CT? I used to go there years ago to have meetings with Aetna and in the back of my brain I think I read that somewhere. Not for new construction, just the older downtown area.
Not sure about now, but when I was in college they had a steam generating plant on campus and the steam was piped to all the buildings for use in heating. They piped it under the sidewalks, which they didn’t insulate too well, so a lot of the sidewalks were heated / didn’t get icy or snowy in winter.
Doesn’t seem like the most efficient method for heating, but it worked.
The building I used to work in was required to put heaters in the front steps because the building faced north and those steps would be in the shade of the building 100% of the time during the winter and they were required to ensure the steps did not get icy.
That the “normal” body temperature for humans of 98.6 Fahrenheit is the result of bad rounding.
A large study found that the average temperature of healthy adults to be 36.88 Celcius or 98.38 Fahrenheit. This was widely reported as 98.4 in Fahrenheit-using countries and 37 in Celcius-using countries.
But since 37 Celcius equals 98.6 Fahrenheit, the Fahrenheit countries later switched from a more accurate number to a less accurate one.