should i consider ac?

If scent in an open room is an issue you have in mind, consider hooking up an inline to a carbon filter that runs periodically on a repeating cycle timer right in the center of the room. Say let it go off hourly for five minutes just to pull all of those stinky carbons out of the air. Could work?

louiedogg said:

a 6" inline fan, 440 cfm or so Ducting is 15 ft id say

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That's a long run of ducting. With the filter, it may be too much for the fan. To test the effect of the duct, feel the flow of air coming out of the end of the duct, then remove the 15 foot section and feel again. The difference may be substantial.

woke up and outside temp had dropped to 70.. tent is 81.5 theres gotta be something i can do to have my window passively pulling in fresh air

brewbeer said:

That's a long run of ducting. With the filter, it may be too much for the fan. To test the effect of the duct, feel the flow of air coming out of the end of the duct, then remove the 15 foot section and feel again. The difference may be substantial.

Click to expand...

It is entirely possible that it is in fact too much for the fan. I had a swamp cooler for my house, kept the room my tent was in at a constant 70-80 degrees. I had an 8 in 720CFM fan connected to the tent to exhaust the heat from my 600w winged reflector as well as passively intake the cool air from my swamp cooler.

Entirely possible you will in fact need to go with air conditioning, or perhaps even CO2. Your room is 144 sqft and you're running 1000 watts which will produce around 3500 BTU of heat. A 9k window unit may just be enough for your situation, but a 12k might be a better option to consider if you were going to expand at some point.

You said your temps never really get above 82 degrees right? That's actually the perfect temp for CO2, a 12k window unit is going to run you at least $300-400 and for $50-100 more you can just get CO2 going. If the hottest your room gets during the summer is 82 degrees, CO2 might be the better option for you. It'll cost more than the A/C up front, but the monthly cost of running CO2 as opposed to an AC would save money in the long run. On top of that, if your room is dialed in CO2 will actually increase growth/yields.

Best of luck.

so i cut my long stretch of ducting and threw a duct booster in there, definately felt more push outside but still, temps didnt drop.

although tonight its cool out, temps dropped to 57, basement is still sitting at 74 and tent is at 78.6 now.

i figured having a cool tube exhausting heat outside and having a window with fresh cool air right next to the tent id hardly raise it a few degrees.

i have another inline fan, 4" fan with 4" carbon filter. im thinking maybe cooling the lights sepetately from the tent?

4" fan is 165 cfm i was thinking of taking out my 6" carbon filter, and have the 4" fan exhaust/scrub the tent with 4" filter, while my 6" fan pulls air from my window (that i desperately want to feel a breeze from) and cool my lights and having that exhaust to the outside.

or do i do a active intake with my 4" fan and window?

summer growing sucks, if i could fit a window ac in my window i definately would, i have an old 5000 btu layin around. but im trying to keep things simple. i was so close to buying a portable ac the other day but decided not too

If you could cool the flower tent a bit, youd be fine. In veg if its warm but left with high rh they grow like a weed... especially w some co2. But the high heat will harm quality if they finish real warm. I know from screw ups.

If its flower tent at 81 see if you can get it down even 5 degrees,

Look up vpd charts, if you cant get their temp lowered at least try to get em in good vpd range will lower the heat stress

Btw im not saying no to ac, after a really bad round quality wise, great quantity but it was an embarassment compared to what i had been growing...i installed one in my flower room 6x6... its a great luxury but not expense free though... so depends on where ur at cash wise, goal wise, etc. But ill tell ya its nice when its 90 out to know my flowering girls are right where i want em...

Even if u just get small window unit you can rig em to go out a vent if you have no window, need a dyct booster and such but can be done...