Quote Originally Posted by oddish

CH4 + 2O2 → CO2 + 2H2O

3. the candle burning may not produce pure CO2. The combustion reaction may produce other gasses produced like Nitrogen (which probably isn't so bad, but still might be an influencing factor on something)
Good info here - taking a break from studying for my 1st organic chemistry exam tomorrow

Just curious, were did you get the chemical makeup of wax to be methane (CH4)? I know wax is a hydrocarbon, and that there isn't one set chemical formula for all candle wax, but I guess it doesn't make a big difference.

This does make absolute sense though, hydrocarbons + O2 -> CO2 + H2O + light + heat

According to the equation - where are these other gases, such as N, coming from? And yes, N isn't bad, as it composes roughly 78% of the air we breathe (just sucks to have it produced, cuz it drops down the overall percentage of CO2 being produced).

It's just neat to see this seemingly-useless information (Ochem) starting to make an appearance in grow room techniques. I don't doubt you though and I am going to try this instead of using yeast for CO2. Just have to watch the added heat, like you mentioned.
:stoned: