Ducting suggestions?? Please help

So this is the room, sorry about my poor paint skills. I have been pondering what would the most efficient way of running the ducting in this room as the middle of the aisle can reach up to 90-95 degrees while the walk way in line with the chiller will be about 72. feel free to leave any suggestions (flexible or solid ducting? using "T"'s or "Y"? having the end capped off or not)

Cheers

Need to Know actual size of room ,chiller cfm , btu rating and I will design , that is if you want my 3 month exp in growing but 30+ yrs exp in duct work, but general layout for but general layout ,would be chiller location on longer wall closest wall to the north side of said building,



duct up and over to center of building split duct at that point with 2 radias 90 DEG fittings then run to end of each side wall with duct , register layout will be cut in to ductwork using 10x6 4 way side wall hart and cooly grills ,the duct will be rectangular 10? depends on cfm of chiller will give you proper dimmentions and transitioning of duct when I know cfm and rm size.

jrainman said:

Need to Know actual size of room ,chiller cfm , btu rating and I will design , that is if you want my 3 month exp in growing but 30+ yrs exp in duct work, but general layout for but general layout ,would be chiller location on longer wall closest wall to the north side of said building,duct up and over to center of building split duct at that point with 2 radias 90 DEG fittings then run to end of each side wall with duct , register layout will be cut in to ductwork using 10x6 4 way side wall hart and cooly grills ,the duct will be rectangular 10? depends on cfm of chiller will give you proper dimmentions and transitioning of duct when I know cfm and rm size.

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the room is currently sleeping i will check the cfm and measure the room tomorrow but. i cannot run the ducting outside the room and i was hoping to have majority of the ducting in the "cooler area" kind of looking like this using 8 inch.. i came accross a 10 or 12 inch square to 8 inch circular reducer i can use. What are your thoughts

Do you have an exhaust outlet? How are you ventilating the room with fresh air? If you haven't thought of this, you need to - you can't just recirculate air in the same room, as the plants photosynthesis more CO2 during the day (lights on) and respire higher levels of oxygen during the night.

With a room that size - 9000w (potentially 10+kg of bud every two months) - you obviously need a good carbon filter as well.

Apart from those issues, the cool spot is on the floor, right? So what you need are floor fans blowing directly up towards each bulb to cool them. You can duct the cooler unit towards the floor, or simply leave it running, as the cooler air will sink naturally and the fans will pick up this cool air from the floor and blow it over the bulbs. You then need to exhaust the hot air out of the room - that will keep your grow room cool, and the exchange of fresh air will keep your plants happy.

You generally want the exhaust vent at the opposite side of the room from the inlet duct, as this will draw fresh air across the entire grow before it is expelled.

For my $.02, get some 8" flex duct, attach to adapter you have, and run around perimeter of room. Poke holes in it with a screw driver starting say 8' horizontally from the chiller. Cap the end. Start with a hole every 6" inches and gradually space them closer together as you go along. Pressure will fall as the air moves down the duct, hence spacing the holes closer together to get a more even flow. Strips of cloth looped around the duct make good hangers that won't cut the duct. Easy and cheap, but looks ugly.

You should seal the room and add co2. Actually, I think you are already sealed, in which case you will need co2 for sure.