Last month I wrote about early steam heating and how experimentation led to discovery, which led to new products or piping techniques. This time I will be writing about the early days of gravity hot ...

The author uncovers an early Trane float air vent—offering a look at coal-era steam heating design, failed radiator traps, and what contractors should watch for in aging two-pipe systems. The first ...

Built in 1901, the seven-story Mendota is Washington’s oldest intact luxury apartment building. One historic feature of the building is the original heating system, which consisted of a coal-fired ...

I have a one pipe steam heat system in a 2 story house. The upstairs is consistently about 6 degrees colder. Currently, I have Maid-o-Mist #4 air valves on the first floor and Maid-O-Mist #5 valves on ...