So although I’m growing indoors under a light, I am very much subject to atmospheric conditions because I’m in a shed. With that said, I’m able to add heat, add humidity, and (to a lesser degree) remove humidity. I am unable to cool the environment. Low/high temp tomorrow is 67/89. Consulting a VPD…

I have mine outside my tent, which is in my garage, and if the ambient temperature gets too low, say <50F, my single heater runs constantly to stay in the high 60sF. Inside your tent it’ll do fine heating up a smaller amount of warmer air. Heater functions perfectly just a bit under-powered if used …

Thank you @Cannanaut I hope you have a wonderful weekend!

You’re welcome and I hope your weekend is a good one too :victory_hand:

It can definitely make a big difference, for myself its easier to control during these summer grows, when the overnight temps are still 65/70ish degrees the light doesn’t bring the heat up to a point you need a/c like you might if you were running during the daytime with highs in the 80’s to 90’s. :…

I mean, they work ok for what I need them to do. There’s a hose that puts the heated air directly into the tent, so it’s much more efficient than trying to heat up my whole lung room. It does make the air dry though

Glad I don’t have to put it into the tent…for humidity i have two of the largest aci humidifiers…one for each tent…they are awesome. Hopefully once I get used to my new location I’ll start another grow…been growing just about year round for the last 5 years… it’s weird not having my grow set back u…

Good way to build a garden bed, 5 gallons at a time. :+1:

@VaHillbilly I feel stupid that I hadn’t thought of that… Great idea! I hope you have a great day! Happy father’s day!

Same to you my friend, they do make amazing beds to grow in. :+1::100:Happy Fathers day. :folded_hands::victory_hand:

[image] Bfreezy: Consulting a VPD chart, with a temp of 90 I’ve got to have 75% humidity just to be in a good VPD range. That sounds like a lot (I’m in very early flower), as the recommendations I’ve seen have said 40-60% rh for this stage. So is it more important to keep humidity in that 40-60 …

Chasing that damn vpd

Grow Support

Mntmannw September 16, 2025, 2:31pm 55

Take a look at this thread, how to build your own Cannatrol for a lot less money

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Chasing that damn vpd

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