Interestingly Enough, CO can also pass through the combustion process. So Actually,, when I was a vocational school teacher, I very vividly remember running a furnace that was running 0 parts per million CO, and all of a sudden CO went up to 35 parts per million Right when I heard a car starting in the automotive lab right next to us, the car kicked off so much CO in the auto lab that it popped across the wall into mine, went through my furnace, came out the other side, and I was measuring CO on one of the flue pipe that actually went through the combustion process.. If You have CO in the house, it can, it can actually be additive to what comes out the stack. You've got to first make sure that you have no CO in the space, obviously for your own safety more than anything.

But It's It's very interesting when you get into industrial processes and things like that that you can be chasing down a problem you can never solve because the CO is coming from a different source and it's literally going right through the combustion process. Unphased..