Med4us
Member
Hey guys and girls I know this has been beat to death already and that if I read through every post on the site then someone has probably asked many of the same questions, however for my own peace of mind I'd like personalized information for my set up.
I've just built a 4'x8' room with 8' ceilings, walls are insulated with roxul, floor has sheet insulation under 5/8 plywood and the whole room is lined in panda poly. I have 2 600w lumitek ballasts and 8" hydrotech sliverstar air-cooled hoods. For scrubbing I have an 8" vortex fan on a can-filter 75. The fan and filter will be on a hydrotech cruise temp thermostat.
My plan for ventilation was to have the fan/filter on hanging from the ceiling with 8" ducting running in line through both hoods and out of the top corner of the grow and then another 15' along the ceiling in a straight line to the opposite end of my garage where it would just exit at ceiling level. the intake for the room will be a 4 or 6" passive hole in the bottom opposite corner of the room from where the filter is hung. I'm planning in just having ducting collar through the wall with some thin filter material over the opening to keep bugs and whatnot out of the room. I will have an osculating fan inside the room.
The concerns I have are; a) Do I need to worry about mold in my garage since I'm venting the grow room air back into that space? It's a large stand alone double wide garage. I can install a dryer vent out of the side of the garage but in the winter the garage is not heated so I'm counting the heat from the lights to do that, then I have a good heater that will run during dark hours.
b) Should I work to find 8" ducting (seems to be a tough find) or just use 6" and add reducers to the fan end and each hood? Also in the summer when the outside air won't be -20 should I run a short 8' duct line to the nearby window to feed the passive hole in the room or just leave it pulling garage air year round?
C) Since I'll have that 4 or 6" passive hole and since the exhaust is on a thermostat instead of a steady negative pressure room should I expect to have stench escaping from the passive duct collar?
d) I know if you can avoid running your hoods inline so your not pushing hot air over the second light but with such a large filter and 2 big hoods on a small space I don't think there would be room to efficiently use y connectors without having large bends in the duct. Even if someone knows there is space, I don't know how exactly y connectors should be used.
e) lastly would it just make life easier in all aspects to spend the money now for a small 4-6' inline fan to dedicate to pushing fresh air only through the light hoods and back into the garage as described above and use my 8' vortex and filter to exhaust room air outside 100% of the time? I really don't have the extra money to buy more fans but I'd have to find a way if it makes more sense in the long run to set it up that way now and avoid old and other problems down the road. If I did get a dedicated fan for the lights would it have to run 24/7 even in such a small room? If not what's the best way to control it's funtion? another thermostat? or just put the scrubber on a timer?
I know there is a lot to read but if you've read this far I definitely appreciate your time and will accept any input you may have with gratitude.
I've just built a 4'x8' room with 8' ceilings, walls are insulated with roxul, floor has sheet insulation under 5/8 plywood and the whole room is lined in panda poly. I have 2 600w lumitek ballasts and 8" hydrotech sliverstar air-cooled hoods. For scrubbing I have an 8" vortex fan on a can-filter 75. The fan and filter will be on a hydrotech cruise temp thermostat.
My plan for ventilation was to have the fan/filter on hanging from the ceiling with 8" ducting running in line through both hoods and out of the top corner of the grow and then another 15' along the ceiling in a straight line to the opposite end of my garage where it would just exit at ceiling level. the intake for the room will be a 4 or 6" passive hole in the bottom opposite corner of the room from where the filter is hung. I'm planning in just having ducting collar through the wall with some thin filter material over the opening to keep bugs and whatnot out of the room. I will have an osculating fan inside the room.
The concerns I have are; a) Do I need to worry about mold in my garage since I'm venting the grow room air back into that space? It's a large stand alone double wide garage. I can install a dryer vent out of the side of the garage but in the winter the garage is not heated so I'm counting the heat from the lights to do that, then I have a good heater that will run during dark hours.
b) Should I work to find 8" ducting (seems to be a tough find) or just use 6" and add reducers to the fan end and each hood? Also in the summer when the outside air won't be -20 should I run a short 8' duct line to the nearby window to feed the passive hole in the room or just leave it pulling garage air year round?
C) Since I'll have that 4 or 6" passive hole and since the exhaust is on a thermostat instead of a steady negative pressure room should I expect to have stench escaping from the passive duct collar?
d) I know if you can avoid running your hoods inline so your not pushing hot air over the second light but with such a large filter and 2 big hoods on a small space I don't think there would be room to efficiently use y connectors without having large bends in the duct. Even if someone knows there is space, I don't know how exactly y connectors should be used.
e) lastly would it just make life easier in all aspects to spend the money now for a small 4-6' inline fan to dedicate to pushing fresh air only through the light hoods and back into the garage as described above and use my 8' vortex and filter to exhaust room air outside 100% of the time? I really don't have the extra money to buy more fans but I'd have to find a way if it makes more sense in the long run to set it up that way now and avoid old and other problems down the road. If I did get a dedicated fan for the lights would it have to run 24/7 even in such a small room? If not what's the best way to control it's funtion? another thermostat? or just put the scrubber on a timer?
I know there is a lot to read but if you've read this far I definitely appreciate your time and will accept any input you may have with gratitude.
