It would stabilize somewhere around 78 without the fan on. Maybe reach 80 when I bump the power up. I could try running it on a lower speed (currently on 3) but I figured the longer air displacement time would be less desirable. Although, like you said they’re small right now so maybe don’t use It up as quick. Wish there was a way for me to know how many cubic feet of air the plant uses on average per minute or hour in each stage.Have you tried using the fan as it was designed to do? If you set the temp @ 82 and humidity @ 60% where does it stabilize? Your plants will grow much faster if you do.