Fire Smoke possible damage ?

I have never heard of smoke itself entering electronics to cause overheating. I suppose if the smoke was very hot that it could possibly heat up electronics enough to damage it but hot air at the same temp would do the same damage but this is not a typical failure mode. If you ever opened up any gear that has sat around a few years, you'd probably see a certain amount of dust in there. Some very sensitive microprocessors need proper cooling so if you have stuff like that, you should be aware of that and get in there and clean up the dust even without having a little smoke but most gear works fine with the dust in there. OK, pots, may need cleaning, and if you need to, CRC 2-26 spray is the best stuff I have found.

On a related note, in general, even though I don't smoke (and haven't since 1984) I do appreciate indoor spaces that don't smell of cigarette smoke. I do rarely work in homes where it's obvious that people smoke and I do find it somewhat repulsive, but I digress. I see on places like Craig's List gear for sale advertised a only ever being in "smoke free" homes etc. It's only my opinion but from a functional standpoint, I believe it makes little to no difference except for the smell and a nasty film which can usually be wiped off. YMMV.