Did it change the temp in the room?
It sure affected mine, but my room is only 8'x10' & it increased room temp (2200 wats HPS) by at least 5 degrees, bringing it up from a norm of 85 degrees F to 90 or above.
Someone is going to say don't run it when the lights are on, but that's the time the plants need the CO2 the most.
Read this especially the part about when plants use the most CO2
when do plants release carbon dioxide - Lisbdnet.com
All I am saying is that the generators get fucking hot (Duh....
) & I found that the effect/result wasn't worth the heat/hassle/cost.
I pull around 3.5 zips per plant, always Sativa dom's such as hazes like Super Silver Haze (I love that fucking plant
) & they're finished in 9 weeks which is fine with me
I tried it & spent a good deal on controllers/fuel/units/time
You want to know where they are now?
In the trash
Stay safe