Welcome! Here are the website rules, as well as some tips for using this forum.
Flue question - old Bastian-Morley boiler
We recently bought a 1928 house in Colorado with a two pipe steam system. The currently-fitted gas boiler is a massive Bastian-Morley unit that still seems to run strong. Based on the serial number (photo below), I am guessing it was manufactured in 1960. It appears to be fitted with a newer gas valve. It also has a McDonnell-Miller series 47 mechanical water feeder installed 4 or 5 years ago.
I'd love any input on how I should care for and maintain this device. I'd really like to keep it running as long as possible!
One specific question: what do you make of the flue pipe? As you can see, it runs to the chimney. It's probably about 25-30 feet from the top of the boiler to the top of the chimney. There's definitely a decent draft. But it's open to the room, with just a grate! It appears to have been installed this way and has probably been like that for decades, so I assume this was intentional? Should I be concerned? I have a CO detector in the basement and it hasn't picked up anything. Should I consider having this changed? Would I see any benefit from adding a barometric damper?
Thanks for your input!