psychadelibud
Well-Known Member
Thanks bud!Looking real good
Just now got back into town, so its gonna be a long night. Gotta get started on getting those lights put up.
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Thanks bud!Looking real good
I would ditch the ducting till summer,hook that fan filter up to blow straight out bring in cool air on other side get plenty of fans,i think I pointed it out bout month ago that set up wont work.u trying to blow thur 4 hoods with 20-30ft of duct an some 90s correct?@HydroRed
Good morning Red... Hope you are well.
I have a little problem with the setup you sketched out for me. It was working great with the T5s and then to the transition of running 2 600 watt hos to do the final few days of veg.
Today, I hooked up all 4 1000 watt lights and turned them all on, as a test and my temps kept rising and rising and rising... Ended up getting to 92 degrees before I shut it off...
So I have a new plan... How about running the room like this instead, still using the thermostatically controlled outlet for the filter>fan>exhaust part? Then a continuous pull or push of cool air through the lights from the outside, with a screen or hepa filter on the beginning of the intake of course... The cool air coming through the air cooled hoods would be set on a timer in conjunction with the "lights on period" so that way I don't have air pulling through my hoods 24 hours straight.
Kinda like this...
View attachment 4086325
I had it all setup in my test, exactly identical to the way you sketched it out for me... I believe the problem in just using one inline fan to control every thing is due to me having only 6 inch hoods, duct etc...
Next run I will upgrade to 8 or maybe even 10 inch, but for now, what do you think about my newest idea?? I don't really have to pull the air directly from the outside into the lights, I could do either that or pull it from my lunchroom which stays cold as well but about 10 degrees warmer than the direct outside air.
4 hoods, 440cfm 6 inch, 1000 watt lights.I would ditch the ducting till summer,hook that fan filter up to blow straight out bring in cool air on other side get plenty of fans,i think I pointed it out bout month ago that set up wont work.u trying to blow thur 4 hoods with 20-30ft of duct an some 90s correct?
what u really need is 2 vents 1 for sealed hoods, an 1 for filter glad I don't have to run filters any more,no way that 6in will do what u want u will be running it 100% an filter wont workI'm also using insulated ducting as well.
a 6in fan needs a 12in passive hole running at 50%How big should my passive intake be?
It was 4 inches, not including the air sucking through the seams of the door which is right beside the intake. Then I cut it out to 6 inches, with hardly any difference.
Hey man, I agree... It is very hard to visualize without a good real time view.@psychadelibud What temps are you pulling into the room through the inlet? Being cold outside it should cool the room off within a few minutes....if that. I'd definitely open up the inlet to at least 10-12" like thumper suggested. Not sure how the temps are coming up that high when the hoods are air cooled and you are pulling winter time air into the room? I understand that the lights being end to end will translate the heat from 1 light on to the next, but 92* is extreme for resonant heat in the room with air cooled hoods and insulated ducting. My fans come on for a total of about 45 seconds to a minute in a 8x10 with (2) 1K hps air cooled hoods & non insulated ducting. I have over 20' of non insulated ducting as well.
Is your exhaust fan running constant? You may need to bump up the CFM on the fan. Also, can you get a picture of the room for me so I can visually see the room for myself (all the lights and ducting)? Its hard to diagnose something like this from the computer.
I posted a photo of what I was talking about earlier...Im having a hard time visualizing what you are wanting to do. By all means, try different combos of things if you believe it will work. I just cant see how the temps are climbing so high in your room with it set up the way it is and 30-40* temps coming in? Im set up the exact same way and I can easily get my room from 78* to the low 60's just by running my fan for 10 minutes or so with the same outside temps and I only have a 336 cfm 6" fan in an 8x10' (actually 12'x14' including the momma room). I have almost 3KW worth of lights going in my rooms and both rooms run off of just the 1 fan and filter through 20+ feet of ducting.