Quote Originally Posted by Deepsuthern
i think a kerosene burner creates co2.. imo i wouldn't use that. i don't think that the co2 would be that bad from just one plant.. just remember to give it fresh air or better yet stick an air purifier inside the grow room
Kerosene burners also produce Carbon monoxide and should never be used indoors or in any confined space without purpose-built ventilation.
CO2 does not come FROM your plant; your plant needs it to grow.
An air purifier neither creates nor uses CO2.

Anyway for one plant or even a couple, and a first grow, forget CO2. You need to optimize all other conditions. If you would like to use it anyway, a yeast and sugar generator is safest for a small room.