Supplemental Co2 and temps question

[6ofOne]

I had read on the forum tha supplemental co2 is not worth doing if the temps are not 85 or above. The post indicated that below 85 degrees the plant would not benifit from the extra CO2.

I for sure wouldn't want to run my plants at 85 degrees.

Is this true? What have you all experienced with this.

 

[OlderGrower]

I have not personally run CO2 but my neighbor did for one grow before he decided it was not worth the cost. He was having heat issues so he figured that since plants can grow in higher temperatures if they have more CO2 that would be his solution. In the long run he found a cheaper way to deal with the heat. He got rid of the 1000 watt HID and replaced them with LEDs and upgraded his exhaust system.