watts per sq. foot for vert grows

[SMARMY ARMY]

When growing vertical barebulb what is the rule of thumb for watts per sq'. Is it still 50?

My room is 11' x 10'. i wanna do 4 trees in this pattern. L= lights, P= plants

L P L
P L P
L P L

If I do 600's in the corners and a 1000watter in the middle will that be enough (3400w), or should i do all 1000watters. My goal is at least 6lbs per harvest.

 

[187020]

Well homie ... The square foot calculation is for flat gardens but still may apply to vert. My yields are usually better than 20oz per 600 and my last 1000w bare yielded 40oz ... Use lots of ventilation for best results...a 12in vortex should get that room breathing !!

Peace

 

[Stonetech]

Bump....

 

[Anti]

When growing vertical barebulb what is the rule of thumb for watts per sq'. Is it still 50?

My room is 11' x 10'. i wanna do 4 trees in this pattern. L= lights, P= plants

L P L
P L P
L P L

If I do 600's in the corners and a 1000watter in the middle will that be enough (3400w), or should i do all 1000watters. My goal is at least 6lbs per harvest.

Is it more important for you to fill the entire 10x11 room (110 sq. ft) or to get 6 lbs with the lowest wattage possible?

To fill the whole room with 5x1000w you're looking at 54.54w per sq. ft.

If you tried to fill that whole space with 5x600 you'd be looking at 27.27w

If you did 1x1000 and 4x600 you'd be at 30.9w

However, if you did the same thing in an 8x8 room (64 sq. ft) 5x600w would get you 46.875 sq. ft.

So somewhere around 7.5 x 7.5 with 5x600w is about perfect for the ~50w/sq. ft rule.

5x600w=3000w. At 1 gpw you'd get 6.57 lbs out of that 7.5x7.5 space and you'd basically be doing a Heath Treestyle grow, so if you haven't googled Heath Robinson yet I recommend you do so.

Many vert growers are able to hit 1gpw and some heros (heath, DHF) claim 2gpw or better once the rooms and strains are dialed.

 

[250wscrogger]

40-50w per sq ft is perfect for all grows vertical and horizontal but don't measure watts per sq ft by the total room size for vertical grows....with vertical setups its best to measure by inside dimensions since the bulbs are between the plants and should be kept a certain distance away from the canopy depending on wattage of bulbs used.
In my experience I've had the best results with these distances from the bulb to canopy.
400's 8-12''
600's 12-24''
1000's 14-30''

With horizontal lighting I prefer a 4x4 footprint for 600's and a 5x5 footprint for 1000's.
I veg with a horizontal 1k (5x5) but flower vertical.

I used to run 88w per sq ft back in my 400w cab days (5 years ago) which helped me maximize space.(average was 9-12oz out of a 1.5x3 cab with 400w and 3x3 gallons or 2x5 gallons LST'ed)
I would suggest 75-100w per sq ft for people wanting to maximize extremely limited space like cabs or closets...otherwise I wouldn't exceed 75w per sq ft.



My 2k stadiums are 8x8 rooms, 6x8 inside dimensions to inside of top shelves (41.6w per sq ft) one of the rooms is actually 7.5x8 (5.5x8 inside dimensions...45w per sq ft)


Heath did a grow that pulled 46oz with 1x600w (flooded tube vertical), 84 clones... 4x4 inside dimensions. (37.5w per sq ft)

His racks were 4x6 inside dimensions for 1200w (50w per sq ft)

 

[DHF]

Top shelf info 250.....Proof positive thet environment means more to a grow area than blastin light at your bitches and expectin em to respond accordingly.........and...

Distance from lights to ends/tops depends on entirely how well your bare bulbs are cooled with radiant heat pulled away from em directly above and out through scrubbers.....

I ran the exact setup with 600`s in the corners and 1000 mh in the middle ftw for over 8 yrs with 10 x 10 and never did less than 10 lbs per room every cycle , but it takes the proper 50/50 sat/ind strain to do it instead of slow ass veggin indica`s that wont stretch for shit and or surround the bulbs when it counts AFTER stretch to give the yields IME.......

34 watts per sq ft will do well , but I never knew how much better they`d do with the same strain I had for yrs till I upped it to 50 per when I swapped setups runnin more smaller plants that finished faster through perpetual rotations....

50 per IME ftw......but....dial environment first.....

Peace.....DHF.........

 

[250wscrogger]

environment first is right...

I'm keeping my rooms at 78 dark 82-84 lights on... exchange 2x+ per minute is keeping me within 4-6F on/off temp difference with 2k. can't complain

1000cfm for an 8x8x7 with 2k bare = sex

I have a 1k weed doughnut halfway through flower now (only 2-3F difference in on/off temp with 1000cfm!) 78 off, 81 on.

one stadium (16x widow) is getting flipped on the 20th and another (16x sage) will be flipped on the 1st... thread will be coming sometime this fall before I chop.... these strains are meant for vertical!... fast veg, perfect stretch and top quality/$$

I'll be maintaining 800ppm co2 in the lung with a gen-2e after the first crop... the 800ppm c02, 45%RH, 78f air will be exchanged every 30 seconds by massive negative pressure in grow rooms (10'' max/ 10x39'' phresh exhaust into lung) pulling in climate controlled, treated air from the lung room.

I've seen setups with c02 and setups with air exchange 2x per minute, but I've never seen anyone exchanging air 2x per minute in/out of a lung room with co2. I knew that the more air exchange I had, the lower my fluctuation above ambient intake temp would be.
I think my 4-6F on/off temp differences are further proof that flip rooms (with massive exchange) built within a big climate controlled room are where it's at.

 

[Rumer]

what is a good environment for vertical rooms?

 

[megayields]

what is a good environment for vertical rooms?

Read above comments.

 

[DHF]

environment first is right...

I'm keeping my rooms at 78 dark 82-84 lights on... exchange 2x+ per minute is keeping me within 4-6F on/off temp difference with 2k. can't complain

1000cfm for an 8x8x7 with 2k bare = sex

I have a 1k weed doughnut halfway through flower now (only 2-3F difference in on/off temp with 1000cfm!) 78 off, 81 on.

one stadium (16x widow) is getting flipped on the 20th and another (16x sage) will be flipped on the 1st... thread will be coming sometime this fall before I chop.... these strains are meant for vertical!... fast veg, perfect stretch and top quality/$$

I'll be maintaining 800ppm co2 in the lung with a gen-2e after the first crop... the 800ppm c02, 45%RH, 78f air will be exchanged every 30 seconds by massive negative pressure in grow rooms (10'' max/ 10x39'' phresh exhaust into lung) pulling in climate controlled, treated air from the lung room.

I've seen setups with c02 and setups with air exchange 2x per minute, but I've never seen anyone exchanging air 2x per minute in/out of a lung room with co2. I knew that the more air exchange I had, the lower my fluctuation above ambient intake temp would be.
I think my 4-6F on/off temp differences are further proof that flip rooms (with massive exchange) built within a big climate controlled room are where it's at.

Quote unquote......250....

Take us ta school my buddy.....you`re screamin all kinds of dialed shit that makes perfect sense while I can`t believe my old ass is up at midnight except ta piss and crawl back on top of somethin.......

Waitin for new strides in our lil hobby from yas Bro.....

Respect....DHF........

 

[farmhouse cat]

I'll be maintaining 800ppm co2 in the lung with a gen-2e after the first crop... the 800ppm c02, 45%RH, 78f air will be exchanged every 30 seconds by massive negative pressure in grow rooms (10'' max/ 10x39'' phresh exhaust into lung) pulling in climate controlled, treated air from the lung room.



I've seen setups with c02 and setups with air exchange 2x per minute, but I've never seen anyone exchanging air 2x per minute in/out of a lung room with co2. I knew that the more air exchange I had, the lower my fluctuation above ambient intake temp would be.

I think my 4-6F on/off temp differences are further proof that flip rooms (with massive exchange) built within a big climate controlled room are where it's at.

This is exactly what ive been planning for my next buildout. In my center lung room will be a mini split AC, the dehumi, and mounted on the outer wall of the lung will be my watercooled c02 generator ducted into the lung. Im framing everything with 2x6s to double insulate the walls.



I too have the 10'' HO max fan and filter which will be mounted above sucking all the air from the top of the chamber and dumping back to the lung to be reconditioned.



Scrogger, whats your plan as far as passive or active intakes from the lung to the grow room?



In my case i think passives is all thats needed. I did the math for the passive intake holes size to match the exhaust for max effiency, im still bouncing around on what size smaller to go to create that negative pressure that we want for smell etc. But i havent decided how much smaller to go. Im interested in your thought about massive negative pressure?


I love the idea of exchanging the air 2xs a min just like everyone does, but in a sealed room with c02!. Cant wait to see how it turns out.

 

[250wscrogger]

Right now, I have no passive intakes... negative pressure is handling it fine... it's pulling in lung air...under/around the door...Some people would probably add passive intake but I like the massive negative pressure, doors close themselves if left cracked.


Make sure to caulk all seams twice in the lung room and flip rooms.

I went with 2x6's for the ceilings (R-19 insulated)
2x4 walls with extra reinforcement on corners. (R-13 insulated)
1'' insulation board used on exterior walls and above the ceiling insulation for additional insulation/soundproofing.
Reflectix soon....
I keep my dehumidifier (LG 65 pint) in the lung room.


I'll be getting a santa fe max dry dual xt (150 pint) after this run and a 23seer mitsubishi mr slim mini split A/C / heat pump (1 ton) in the spring.

 

[farmhouse cat]

Right now, I have no passive intakes... negative pressure is handling it fine... it's pulling in lung air...under/around the door...Some people would probably add passive intake but I like the massive negative pressure, doors close themselves if left cracked.


Make sure to caulk all seams twice in the lung room and flip rooms.

I went with 2x6's for the ceilings (R-19 insulated)
2x4 walls with extra reinforcement on corners. (R-13 insulated)
1'' insulation board used on exterior walls and above the ceiling insulation for additional insulation/soundproofing.
Reflectix soon....
I keep my dehumidifier (LG 65 pint) in the lung room.


I'll be getting a santa fe max dry dual xt (150 pint) after this run and a 23seer mitsubishi mr slim mini split A/C / heat pump (1 ton) in the spring.

I like the sound of that! did you cover the 1'' insulation board on the exterior? what did you use for the interior walls? I think insulation is KEY. My room is going to be in a garage and it gets freakin hot in the summer.

My plan is to run an 8 week strain, 4 weeks apart to harvest one of the 2 chambers a month. I have this idea of putting the dehumi inside the chamber of the room that has 4 weeks left before harvest. That way the other chamber will run at a higher RH for the first 4 weeks of stretch even though all rooms are circulated from each other. Just having the dehumi in that chamber closest to harvey should work pretty well.

Thats crazy you dont have passives with such a powerfull fan? I did something similar in the past, but used 4-5 8"' dark room louvers and even with the louvers i thought the house was gonna suck itself in. lol. I had to pry the door open to get in and you could hear the fan vamp up bigtime when i shut the door behind me. I knew the room was choking so i put an active intake in and that smoothed everything out perfect and still kept good negative pressure.

Dont ya just love building new rooms!!

 

[250wscrogger]

An 8 week strain on a monthly is the way to do it!

I have mine set up perpetual to pull 10.5 crops per year...
80 day sage room pulls 4.5 crops per year
60 day widow room pulls 6 crops per year

If I ran all widow I would get a crop every 30 days but sage is a crazy yielder and the quality/price I get justifies the 80 day flower time.

I don't run higher RH in the first 4 weeks but I foliar feed daily up until day 21 flower. I shut off the oscillating fans before I foliar feed and let them soak it up for 3 hours until it evaporates then I turn the fans back on... the plants love it!

Running gh micro/bloom 10/15... which comes out to 2.2ec but I add water to the res until it dilutes to 2.0ec
I feed 1.0-1.2ec week 1, 1.4-1.6ec week 2 and then after day 14 veg, 2.0ec till flush.
6.0-6.2 PH in veg, 5.8-6.0 PH in flower.
Water consumption is 1.25 gallons per plant every 2 days(5 gallon)
Feeding every other watering in pro-mix.
Plants are scrogged,pruned and selectively defoliated at day 14
Flush is 2 weeks, 1 week with carbohydrates (molasses @6ml per gallon), last week straight 6.0 PH water.

 

[megayields]

I like your style 250...you got it "going on".....(thumbs up)

 

[BigDawg]

so you guys think you can put 5,000 vertical watts and 4 TREES in a 10 x 10? These trees get huge so it seems like a 12 x 12 would be best, but thats only 34 watts per sqft.

4 trees with that setup and 5 x 600 might could work in 5 gallon buckets and 6 pounds is doable but if you grew real trees in 30 gallon totes in a 10 x 10 with the same 5 x 600 watts then you would yield 8+ pounds if environment is dialed.

 

[250wscrogger]

For a 5k, 4 plant tree grow I'd go with a 12x12 to maximize efficiency.......
8-10# should be the norm once dialed... I think 12-14# could be done with the right strain and heavy dialage.

10x10 is perfect for 3400w if you want to maximize efficiency...
6-10# can be done with the correct strain, flipped at the proper size.

You could run 5kw in a 10x10 to maximize space and product density, but even with 5kw I think 10# is the max yield you could get from a 10x10 room.