This said “steam humidifier” on it. Is the box (says “Honeywell”) attached to the furnace a mini-boiler with controls just below it? Then there’s the box hanging from the ductwork that says “Autoflow” and has a copper line coming into it.
I just took some quick pictures while dropping off a radon monitor so I haven’t looked at these things carefully and I’m going back tomorrow. Don’t thnk anything that says “Honeywell” is going to be a boiler though. Awful big for a control box, though.
Is anyone familiar with these components?