Vent question Rhizome please help

[nuggiespl]

I read the noob grow room setup, very helpful, but I have a few extra variables. I have a 7000 btu AC/Heater, and would like to know how this will effect intake and exhaust. What I would like to do is have the intake come though my 1k cool able light fixture in the bloom room( one side of the fixtrure would be connected to flex duct the other side would be connected to nothing just a open intake.)So the duct would go from light to a T, which would also be exhaust for my grow room. I would put a can fan at the floor level of my grow room which would allow fresh air to go from bloom room to grow room. My inline fan would be after the T and would exhaust through vent in roof already installed. The inline fan is a Quantum 99-mbq325-6 it says 375 cfm at 2.4 static pressure. Am I on the right track, please help thanks in advance. picture 148 is where Ac is going to be installed, 1150 is my back to where ac is, 154 shows vent in ceiling.

nuggiespl Reviewed by nuggiespl on 09-24-2008. Vent question Rhizome please help I read the noob grow room setup, very helpful, but I have a few extra variables. I have a 7000 btu AC/Heater, and would like to know how this will effect intake and exhaust. What I would like to do is have the intake come though my 1k cool able light fixture in the bloom room( one side of the fixtrure would be connected to flex duct the other side would be connected to nothing just a open intake.)So the duct would go from light to a T, which would also be exhaust for my grow room. I would put Rating: 5

[rhizome]

- Don't intake thru the hood- The point of coolable fixtures is that you can remove the heat from the room. Intaking thru the hood will just blow the hot air into your room. If you're going to use an AC, you'll be best served by using a completely seperate circuit( intake->fan->hood->exhaust). Putting the fan inline before the hood will keep the temperature of the air passing thru the fan lower, which will keep your bearings happier.

As I understand it, you'd be pulling cool unsmelly air thru the hood and smelly air thru the filter at the same time with the same fan. Watch out for stinky room air being pulled thru voids in hood, and blowing out your exhaust untreated. Your better off running the hood @ positive pressure- If you really want to do hood and room with one fan, go filter->fan->hood->exhaust- If a little scrubbed air goes back into the room from the hood, it's no big thing.

I'd run a seperate circuit for the hood- it'll take a lot of load off of your AC. Power savings will pay for second fan within six months- and I shouldn't have to mention that security is priceless.

Hope this helps- lemme know if I can help with anything else.

[nuggiespl]

Do you think the Ac blowing directly on the flowering plants would be a problem? Do you think I will have a problem maintaing proper temps in the veg room, A wall of some sort, between the two rooms, Would a 70 cfm exhaust fan between the flower and veg room do the job, then that raises another problem with the exhaust from the veg room being dirty, or should i put the filter>6in inline fan in veg room>duct from inline fan to>lights in flower room 2 600 hps>exhaust outside. So it should make a big circle, fresh air from Ac in flowerroom , then 70 cfm fan,between flower room to veg on the floor, inside veg room would be the filter inline fan ducting to lights then out side. I hope this makes sense. I don't think the 70 cfm fan would be enough though thinking about it now.

Thanks in advance