[allday]

In our little corner of northeast Ohio (east side inner ring Cleveland suburbs), the -majority- of homes use steam heating, as they were constructed in the late 19th and early 20th century. Never quite occurred to me that this is a historical/geographical oddity.

There's at least one HVAC company around here that still specializes in boilers and radiators. We had our boiler replaced last year and the system tuned up - there's hardly any water hammer or hissing now and as other commenters have mentioned, the heat feels great.