Is a BBQ grill the only way to generate carbon monoxide?

[Walilamdzi]

I don't have one...

 

[PrettyMoose]

Another way is a gas powered generator but that's going to be more expensive than a charcoal grill. Entire families have died from turning a generator on in the house during cold northern winters.

 

[Apathy79]

The old fashioned way was blocking the exhaust in the car. Not sure it works with modern cars though.