Gas-fed switch rail heaters heating rails in Chicago. This is one of a few ways that rails are kept warm.
0:35 video:
https://www.youtube.com/watch?v=z76ywZDXyPw
Previously:
https://www.homemadetools.net/forum/...126#post125968
https://www.homemadetools.net/forum/...093#post125754
https://www.homemadetools.net/forum/...121#post115609
https://www.homemadetools.net/forum/...144#post120921
