90*in tent.

Tent is a 4x8. Can't get temps below 90 when garage is high 80s. I have TONS of airflow both in and out. I know outside plants can handle higher temps because it's getting more air circulation and co2. Do you think 90*is ok in a tent for a couple hours as long as I have lots of air flow and air exchange. I have a 720cfm. Exhaust with no ducting no filters no restrictions. That sounds like way more. Than the bare minimum Of 55cfm. that's recommended. haha

how much light, n how is said lighting mounted? any other fans than the exhaust? more info = more accurate help

i have a $120 window AC in the room the boxes are at& drawing air from, doesn't hurt power bill hardly at all especially if you buy one that holds a certain room temp.

If running ballasts I'd have them located outside the grow tent as they do generate heat.

Humidity is what i'd keep an eye on with the higher temps, but some strains like the 80+ temps, 90 is pushing it though, and where is your thermometer located? you could be getting a false room temp if it's located too close to the light or high up on the wall.

And unless your are running a sealed grow(no new or exhaust air) i wouldn't worry about Co2 levels

Yes, they will survive in that temp with good airflow. One summer I ran 4 cabs that size in BLAZZING heat,'
cabs were at 95 or so most of the day, cooled into the low 80's at best. Had killer airflow, and in proper hydro,
8 plants drinking 20 gallons of water a day in late flower. They grew fine, good yield, i was shocked.

kennymox510 said:

Tent is a 4x8. Can't get temps below 90 when garage is high 80s. I have TONS of airflow both in and out. I know outside plants can handle higher temps because it's getting more air circulation and co2. Do you think 90*is ok in a tent for a couple hours as long as I have lots of air flow and air exchange. I have a 720cfm. Exhaust with no ducting no filters no restrictions. That sounds like way more. Than the bare minimum Of 55cfm. that's recommended. haha

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If you have 2 1000s, thats actually pretty good temperature differential. Did you expect better?

- Jiji

2 600s and 1 400. Lights are on their own Ventilation System and it's doing a great job of keeping them very cool. The room has the above said fan. Lights are mounted on ratchet straps in a row (end to end). Thermometer is mounted at tops of plants.

Someone has prob already said. But get a air cooled hood and just go bigger on exhaust. Failing that, AC unit might be needed

All three hoods are air cooled. Glass on hoods is barely warm at all. Don't. Think I need a bigger exhaust either. I guess I can buy a a.c. and try that. If it doesn't work I'll return it.

Your getting about a 5 degree variance from room to garage? That's pretty decent, and a couple hours a day wont hurt much. I had a couple outside this last summer in so cal, easily over 100 a day and they did fine. Just as well as anything I would have paid for. Unless your running something like a Granddaddy purple where that 80 degree matter really comes into play I would think your going to be fine.