I finally got around to brewing a batch in the kitchen in the house, which has a much nicer, rear-venting range hood, and perhaps not surprisingly the condensation issue was still present.Thanks -- the other thing I'm going to try because my curiosity is killing me, is take my same pot and boil a couple of gallons of water for an hour on my kitchen stove in the house and see if I get condensation in there. My hypothesis is that I won't, but I'll find out later today. If I don't then I'll be left wondering what the difference is.
Regarding a steam condensing lid, it's an interesting option but ultimately it's a non-starter for me at this point. I just can't get past all the added complexity of having the steam handling coupled to the kettle(s) and it'd substantially reduce my flexibility in equipment use, so for better or worse I'm set on having the condensation handled by a condensate hood at this point.
My plan at this point is to replace my 30" range hood with a condensate hood, which is proving to be a bit more challenging than I had hoped since most of the commercial condensate hoods available are too large for my space. And, to paint myself further into a one-path solution, this isn't something I want to DIY.
I did get in touch with Fast Kitchen Hoods, who I came across on The Electric Brewery, and they can make a custom-sized hood for my space and even put the exhaust port in the right spot so it'll line up with my existing roof vent. (It also doesn't hurt that their customer support seems excellent based on my interactions with them so far.)
I also checked out HoodMart but they haven't responded to my request for a quote, and from what I can tell may not even make a hood small enough for my space.
The upshot of all this is, before pulling the trigger on having Fast Kitchen Hoods build me a hood I thought I'd ask if there are other sources for small condensate hood that I maybe haven't come across, just so I can do some comparisons if possible.
Thanks for the great discussion on this topic!