Originally Posted by Smitty
CO is more a product of incomplete combustion, and it has to have a pathway to escape from the appliance (draft-hood, plugged heat exchanger, etc). This was why I've mentioned an Oxygen Depletion alarm would be more valuable than a CO Detector. A woodstove would deplete the breathable oxygen in a bus long before it would dump CO into it.
There's no opening for a woodstove to release CO into the bus.
Goes back to this statement. But now I see you were talking about Carbon Monoxide rather than Carbon Dioxide.
So if the wood stove is burning and taking oxygen from the room, that will either be replaced by a leaky window / engine dashboard or door with fresh air, or it will cause down-drafting putting some smoke in the room for a smoke detector to detect. So you can see if you are running low on oxygen by detecting smoke.