You absolutely do not need to increase hvac by 50%. Not true at all. If its tank fed, there is no addition of heat. And you do not have to run significantly higher temps. We see over 20% gains and i never exceed 80 degrees, by the end as i said im down to 74 degrees. Did you hear bugbee? He said it does not require super intense lighting to see the gains. You are mistaken here on many levels. If the only goal is yield, it requires somewhat higher temps, but not that much higher than you would ideally need even without co2. But hey, have you tried it or not? At this point my co2 cost is extremely low to see the yield increase. And i barely run my room any warmer. Look at the chart i just posted, at 80 degrees or 70 degrees the photosynthetic rate is still so so much higher. Co2 cost for me is like 300$ per run. My ac barely labors more than it would. And im seeing 20+% yield increase and overall way crazier vigor and quality. Its just a no brainer imo at this point.Just to make things in perspective, at 80f 60%hr which is rougly the same vpd as 90f 70%hr, so ''equal'' vpd
you have 11 btu/lb of air enthalpy difference, which is significant on a hvac system.
on the right you can see the humidity ratio, air hold almost 50% more vapor at 30C than 25C , which mean more deshumidification too.
As you can see theres a cost to co2 enrichment , and its not only the gas, you need to increase the load on hvac by 50% or more and its not a linear correlation , its exponential.
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