This is a text lift that's standard in Coleman instruction manuals:
CARBON MONOXIDE HAZARD • This appliance can produce carbon monoxide which has no odor. • Using it in an enclosed space can kill you. • Never use this appliance in an enclosed space such as a camper, tent, car or home.
With thanks to Mitchbert.
Eastforker, please don't yell. Thank you.
That must be the stove using the lantern fuel, propane fuel does not produce CO when you burn it, statement, fact.