Jamie wrote:

I definitely produces enough CO to kill somone, because there are incidents
every year where people die after running them in their basements. A typical
car can probably idle for 8 hours on a gallon of gas ... but it sure doesn't
take that long for someone to kill themself that way!

I wouldn't take any chances - why not just build a little box with a roof
for it and stick it outside when you need to run it?

Or just hook up a vent for the damn thing...