Griff,
Yes, I found all kinds of screens online, but none will fit the old style vents. I was just wondering if someone else had found screens or fixed it some other way.
The thought just occurred to me that perhaps I can replace the vents themselves and then get some screens for them. I will take a look.
I had already thought of window screen, but I fear it would block the air flow to some extent which could cause problems. Also, I note that most of the commercial screens I have seen are bowl shaped which increases the surface area greatly--and they use screen with much larger holes. This probably makes the air flow restriction negligible.
Furnace removal: Ah yes, swearing does release some of the stress. I will keep that in mind!
And thanks for the hidden bolt tip.
I already checked the refer and didn't find any nests. It has a large side vent (about a sq ft) which does need screening. I am going to look for some regular house vent screen (about 1/8" openings), but I didn't find any at either Home Depot or Lowes. Maybe on their website...
Thanks for the suggestions.
