I only want to use it for a few minutes to run the well pump. I want to
keep it in the basement. I'm assuming that if I open the windows and
start it (assuming its a new generator), I will not be in any major
danger. My basement is 70' x 30' x 10' tall (i.e. huge) and has 4
windows, 2 at each end.

Alternatively I have to trudge outside with it through deep snow
(usually we get blackouts after such a thing), plonk it down and run
the cable through the window, which I do not want to do.

TIA!

Dean