Help me build it!

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Johnny-mariseed

Well-Known Member
8 x 10 room. What ta do... what take do...? Where do I start? I'm thinking 1000 watt mh/hps horticulture cool tube (with or without wings?) to start with...a dimmable, digital ballast, mounted on the back third of the room. Definitely need a scrubber of some sort, ceiling mounted, with a cheap/reliable (unchosen) inline with dial down, blowing into adjacent room on the right side of the room out the top and pulling fresh air in the bottom from the same room?? There is a window facing the front of the house that im blacking out. There's a small window frame on the left side of the grow room that goes to an adjacent room, like a bar window deal, i guess I could pull fresh air from that room through the cool tube and dump it with the inline in the opposite room there by not creating negative pressure and yet still getting fresh cold air..... or ill black it out. Maybe squeeze a veg tent full of cfls in there??? Rolled Poly floor...cheap and easy. Walls are half done cedar which is good for smell, bad for light reflection. The room was used to grow in before (telltale signs: holes in the rock and duct tape glue around the windows and foam around the door seal) so damage was done before i got my hands on it. Do I need reflective walls? Is it any good with just one 1000 watt in there? Will the light even reach and bounce back that far away? Thinking scrog.
I will Prob. be adding lights later on. I've grown with cfls in the past so this is kinda a new ball game...Kinda. Give me ideas guys! I wanna go shopping!
 
killer_dabbins

killer_dabbins

Member
Sealed room with split a.c. run ducting from scrubber around the top of the room and cap off. Poke holes in ducting to increase air circulation in room. If your not using reflective walls you can use copper wire to hang thick Mylar around tables to increase light. If running intake use hepa filter for mold, exhaust and intake should be in separate rooms. If running co2 I would recommend a sealed room with no exhaust, unless running exhaust while lights are off for humidity control, But humidifiers work best for me. Use metal halide and hps, I would recommend t5 over cfl as well. If running vedge and flower at the same time build a frame with 2x2s in front of tent door and add a zipper, this helps with light leaks you can also split your room that way. I hope this helps
 
J

Johnny-mariseed

Well-Known Member
I like
killer_dabbins said:
Sealed room with split a.c. run ducting from scrubber around the top of the room and cap off. Poke holes in ducting to increase air circulation in room. If your not using reflective walls you can use copper wire to hang thick Mylar around tables to increase light. If running intake use hepa filter for mold, exhaust and intake should be in separate rooms. If running co2 I would recommend a sealed room with no exhaust, unless running exhaust while lights are off for humidity control, But humidifiers work best for me. Use metal halide and hps, I would recommend t5 over cfl as well. If running vedge and flower at the same time build a frame with 2x2s in front of tent door and add a zipper, this helps with light leaks you can also split your room that way. I hope this helps
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I like your thinking with a sealed room. Would I be able to run a window ac unit but not in the window just chillin' in the room recirculating is own air? Maybe dumping into a dehumidifier or something. What about fresh air?
I like your thinking with the framed entry in front of the tent but can't I just not go in there unless BOTH veg and flower lights are on?
I already have cfls I'm finishing some mandala#1 in for right now so prob.no t5s for awhile. But really excited about having a new room dedicated to growing and I wanna do it right. No co2 for now since it's just my own meds but maybe down the road if I start caregiving it might be worth it. I'll be building a massive beautiful grow room next year with endless room and options.
 
killer_dabbins

killer_dabbins

Member
The a.c. unit is going to generate a lot of heat out of the back, more than it can cool so it has to exhaust out somewhere. Otherwise your room will be hot and humid I would recommend using a metal halide for the vedge and a hps for the flower, that's when the framed entry helps because they both hit different spectrums and shouldn't mix.
 
J

Johnny-mariseed

Well-Known Member
What do most people do about their ac? Certainly not a window unit?! The light leaks would be insane!
There is a 8 inch hole in the rock that goes in between the floor joists like the last grower was dumping his light heat in between the ceiling and the upstairs. I think he was pulling fresh air through a 4 inch square hole from the growroom to the next room but there's also another 4 inch hole on the same wall up high. So I'm trying to imagine what the last guy was doing... I think he blacked out the window and the bar widow, pulled fresh air from the adjacent room thru a scrubber, thru his light and dumped it in between the ceiling and floor. I'm not sure about the second hole though... one for exhaust, one for itake and one for...??
Anyway... doesn't really matter what he was doing with his grow just imagine he thought about it for awhile, as I am, and obviously came up with something that worked for the situation.
 
killer_dabbins

killer_dabbins

Member
I built a small partition in my room that was insulated, I installed my a.c. in that room and also an exhaust fan. This draws out the hot air and also acts as a vacuum for your room grow room which is ideal as long as the room is sealed. Even if you don't build a frame, I still higly recommend laying a piece of panda paper over the door and putting a zipper on it, this helps with light leaks and keeping the room sealed
 

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Johnny-mariseed

Well-Known Member
Turns out my room is actually 7x11x7.5. I'm leaning towards a parabolic hood to optomize coverage I'm only growing six in veg at a time for now but down the road I may want to add lights so the rectangular lights will probably be more fitting down the road. Any thoughts? Can I actually get more foot print with the parabolic?
 
killer_dabbins

killer_dabbins

Member
Johnny-mariseed said:
Turns out my room is actually 7x11x7.5. I'm leaning towards a parabolic hood to optomize coverage I'm only growing six in veg at a time for now but down the road I may want to add lights so the rectangular lights will probably be more fitting down the road. Any thoughts? Can I actually get more foot print with the parabolic?
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More coverage = less light intensity
 
J

Johnny-mariseed

Well-Known Member
killer_dabbins said:
I built a small partition in my room that was insulated, I installed my a.c. in that room and also an exhaust fan. This draws out the hot air and also acts as a vacuum for your room grow room which is ideal as long as the room is sealed. Even if you don't build a frame, I still higly recommend laying a piece of panda paper over the door and putting a zipper on it, this helps with light leaks and keeping the room sealed
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Love this idea. However, I'm in a rental for now so I can't customize to that extent yet. It would be perfect if I owned the place. How many degrees do you think that room will rise with the light on?
I'll do the panda paper deal but what do you mean light leaks? From the zipper leaking out of the veg tent inturupting the flowering girls?
Newbie question of the hour: do they have ac units that are free standing in room units?
 
killer_dabbins

killer_dabbins

Member
Johnny-mariseed said:
Love this idea. However, I'm in a rental for now so I can't customize to that extent yet. It would be perfect if I owned the place. How many degrees do you think that room will rise with the light on?
I'll do the panda paper deal but what do you mean light leaks? From the zipper leaking out of the veg tent inturupting the flowering girls?
Newbie question of the hour: do they have ac units that are free standing in room units?
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The room will get very hot and humid. Yes you don't want your vedge light to mix with your flowering light, this can cause your plants to hermaphrodite. And yes they have free standing units with exhaust, usually 6" and you can connect a piece of ducting and run it thru a hole in the wall then seal it off, they aren't as efficient and usually cost more but sometimes you have to go that rout.
 
J

Johnny-mariseed

Well-Known Member
killer_dabbins said:
The room will get very hot and humid. Yes you don't want your vedge light to mix with your flowering light, this can cause your plants to hermaphrodite. And yes they have free standing units with exhaust, usually 6" and you can connect a piece of ducting and run it thru a hole in the wall then seal it off, they aren't as efficient and usually cost more but sometimes you have to go that rout.
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OK thanks for the advice! I'd like your comment but I don't know how yet. Lol I'm def. Thinking I want one of those ac units. But for now I'm going to pull air from the grow room thru a scrubber thru my light and dump it in the room on the left and pull fresh air from the room on the right. It's a basement grow so Temps should stay low year round. This summer it was nice down there on real hot days so I may NEED the lights heat this winter to actually warm it up in there! Backwards huh? What do you think for cfms in and out?
 
J

Johnny-mariseed

Well-Known Member
What does anyone have to say about this parabolic vs. Hood conundrum? I will most definetly be adding more lights later on so would it be better to get a hood with a square footprint apposed to a parabolic with a round? Any thoughts? Trying to think ahead. Parabolic would be better for my 7x11 Sq ft. No? Trying to squeeze the full 7 foot out of a parabolic by putting Advantech on the walls maybe doing a curtain rod across the room with a mylar curtain. I'll be doing a new room in a yes though with more space so I'll wanna add lights later which a hood would make a nice 4x4 square footprint... get the picture?
 
fishdeth

fishdeth

Well-Known Member
You could use a portable A/C unit similar to the LG 10,000 BTU unit I have pumping cold air to the res area of my fridgefirst to cool the soup, then on its way to the flower room.
You could run that heat exhaust pipe up through the hole you mentioned in the rock?20150803_163508.jpg 20150316_170534_resized.jpg 20150316_174145_resized.jpg
 
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