480W & 720W LED Grow - Land of Clovers

[IrishBoy]

re: 480W & 720W Grow LED Hydro - Land Of Clovers

The Jacks are really coming along! Must like all that tea you are making.

Bro they love this tea! ive never seen some plants so healthy it truly blows my mind. i cant wait to see how their Bloom tea works.

Those Jack's look great IB, can't wait to see how they flower and finish. Always love to see how new and different products work.

On a side note, I got some Platinum Jones the other day that was amazing. I've actually never had a bad Casey Jones whether mixed or pure. I imagine you are gonna be very happy with yours.




Marley

Tomorrow i am going to flip them into flower. That strain you have sound bad ass. i want some these Case Jones girls are doing amazing with my DM red and a few other things added.

Gotcha, thanks! Yeah, I was following both but showed up late. I thought they all started 11/22. Rock on brother!

It gets kinda confusing with 2 grows on 1 thread. i made sure to separate them a few weeks that way trimming wont be so much at once, i should get a little break between the two strains.

Much respect Irish. Great growing bro...

Another grow, by Irish!

thanks buddy.

 

[IrishBoy]

re: 480W & 720W Grow LED Hydro - Land Of Clovers

These Jack hairs are looking crazy! they haven't even flowed yet and i already have preflowering with tons of resin, never seen that before? i am wondering if its the Xtreme tea? All i know is i love it, because that means i am going to have some crazy frosty buds thats all organic.

The Casey Jones have been in flower for 1 week and i already have tons of bud sites with hairs shooting out already never had plants flower so fast usually its a few weeks. The DM red is doing great so far also, i expect my theory to be right and for the 13-13-13 NPK mix to rock out like no other TRF. My gut truly tells me its the best one to use for our plants. i could be dead wrong but ill bet all my chips on the table it will do great with fat buds at the end. i have very high hopes, lets just pray i am right?lol. I truly feel OC+ or DM purple has nothing on the DM red. but thats just my opinion and my gut feeling from what i seen how the plants reached on my last grow with all three of them, temps might have made it do better then the other but i dont thanks thats the case.

I have a buddy messing around with their Organic TRF from DM the Brown Bottle so i will keep you guys posted on how it dose.

 

[irishgrass]

re: 480W & 720W Grow LED Hydro - Land Of Clovers

Hey happy christmas and a great new year everyone, nice to see the cj taking off so fast and the jacks only itching to go, looking great man

 

[lavendar]

re: 480W & 720W Grow LED Hydro - Land Of Clovers

irish,
could you give me some info on the c.jones....i like the breeding line, but dont know anything really....sativaish, or ? who has info? best place to find them ect....or pm me...thank you, been lurking, just busy....take care, have a happy new yr...thank you, L

 

[IrishBoy]

re: 480W & 720W Grow LED Hydro - Land Of Clovers

irish,
could you give me some info on the c.jones....i like the breeding line, but dont know anything really....sativaish, or ? who has info? best place to find them ect....or pm me...thank you, been lurking, just busy....take care, have a happy new yr...thank you, L

80% Sativa by crossing Trainwreck x Thai x East Cost sour Diesel.

10 weeks flowering

company Grat3ful H3ad seeds. or Joe Schmo cuttings

 

[IrishBoy]

180w tent with Casey Jones 12 days into flowering.

180w tent with Casey Jones 12 days into flowering.

 

[lavendar]

re: 480W & 720W Grow LED Hydro - Land Of Clovers

80% Sativa by crossing Trainwreck x Thai x East Cost sour Diesel.

10 weeks flowering

company Grat3ful H3ad seeds. or Joe Schmo cuttings

not one of those plants i dont love....thanks for the info...happy...hugs, L

 

[Two Tokes]

re: 480W & 720W Grow LED Hydro - Land Of Clovers

Both sets of plants are looking fantastic!

The Jacks are getting unPHed tap water right?

 

[IrishBoy]

re: 480W & 720W Grow LED Hydro - Land Of Clovers

Both sets of plants are looking fantastic!

The Jacks are getting unPHed tap water right?

all of my plants are getting none PH R/O water. no problems with either group. i finally grew a pair and stopped PHing and my results are great with both sets. life is good not PHing.lol

 

[Velodrone]

re: 480W & 720W Grow LED Hydro - Land Of Clovers

Hey Irish, just got some time and thought I would stop in. Looking stellar. I will answer your PM in a min. Keep it brother!

 

[Sonzor]

re: 480W & 720W Grow LED Hydro - Land Of Clovers

Those are some beautiful plants you got going there, cant wait to see them all budded up and glistening with trichs. Very nice....

 

[thinkerr]

re: 480W & 720W Grow LED Hydro - Land Of Clovers

cheap cloner ----- Burpee Ultimate Growing System

 

[IrishBoy]

re: 480W & 720W Grow LED Hydro - Land Of Clovers

thanks guys!

I have a question? right now i am running a 200CFM exhaust fan and i can get a great deal on a 200CFM filter. its not not a good idea to run equal CFM's? should the filter be higher CFM then my exhaust?

 

[Velodrone]

re: 480W & 720W Grow LED Hydro - Land Of Clovers

I stole this!!!


How to size your exhaust fan

There are many calculations on the web for sizing a fan for ventilating grow rooms; however, what these calculations fail to take into consideration is the friction loss on carbon filters, increased temperatures from HID lights and CO2, etc. The following calculation can be used as a guide for sizing an exhaust fan for a growing area (keep in mind that this calculation will give you the lowest required CFM required to ventilate the grow room):

Step 1 – Room Volume
First the volume of the room needs to be calculated. To calculate multiply length x width x height of growing area e.g. A room that is 8' x 8' x 8' will have a volume of 512 cubic feet.

Step 2 – CFM Required
The fan should be able to adequately exchange the air in a grow room once every three minutes. Therefore, 512 cubic feet/3 minutes = 171 cfm. This will be the absolute minimum cfm for exchanging the air in a grow room.

Step 3 – Additional factors
Unfortunately, the minimum cfm needed to ventilate a grow room is never quite that simple. Once the grower has calculated the minimum cfm required for their grow room the following additional factors need to be considered:
Number of HID lights – add 5% per air cooled light or 10-15% per non-air cooled light.

CO2 – add 5% for rooms with CO2 enrichment

Filters – if a carbon filter is to be used with the exhaust system then add 20%

Ambient temperature – for hot climates (such as Southern California) add 25%, for hot and humid climates (such as Florida) add up to 40%.
Example 1:
In our 8’ x 8’ room we have 2 x 1000w air cooled lights, and we plan to use a carbon filter. We also plan to use CO2 in this room. The ambient temperature is 90°F, however, we will be using air from another room that is air-conditioned.

Minimum Required CFM to ventilate room:
(CFM required for room – step 2) + (CFM required for room – step 2 x 10% (2 air cooled lights)) + (CFM required for room – step 2 x 5% (CO2)) + (CFM required for room – step 2 x 20% (Carbon Filter)) + (Ambient Temperature 0 (Air coming from air-conditioned room)).

= (171cfm) + (171cfm x 10%) +
(171cfm x 5%) + (171cfm x 20%) + ( 0 )

= 231cfm – this is the absolute minimum cfm required to ventilate your room.

The next step would be to match the closest fan to this CFM. As we are using a carbon filter we will need to match the fan with the filter so that the fan that will neatly fit onto the filter. The filter that we will use is a Dutch Breeze Carbon Filter - DFS4. The DFS4 has a 6" flange. Our options for 6" fans are as follows:
- Eco Plus 6” – 440cfm
- Fantech 6” – 252cfm
- Fantech 6” XL – 392cfm
- Elicient 150B – 309cfm

The DFS4 filter has a cfm rating of 255-309, so the fan that we will choose for our room will be the Elicient 6” fan. This will be an ideal fan for this room and carbon filter, since the extra cfm will help compensate for the small amount of ducting we may have to run.

If only step one and two was used (the calculation that is most commonly displayed on garden websites) then the grower would have chosen a 4” fan and a 4” carbon filter; the grower would have soon found out that this fan and carbon filter would have been inadequate for their grow room.


Example 2:
If all the variables are kept the same and we changed the room size from 8’ x 8’ to a 12’ x 12’ then the minimum required CFM would be 519 cfm, thus the fan would be Fantech 8” XL, Elicient 8” or EcoPlus 8” and the DFS5 or DFS6 Dutch Breeze carbon filter.

The Really Simple Method:
If you want to keep things really simple, just remember that you want to replace the air in your grow room every one to three minutes. If you're in a hot area, exchange it every minute; if you're in a cooler area, you can take up to three minutes.

The Very Important and Often Overlooked Intake Port
It is very important to understand that you can't simply put an exhaust fan in a sealed room and expect to suck air out of it. You absolutely must have some kind of opening in the room to allow fresh air to replace the air you are exhausting. If you don't understand this concept, just put your finger over one end of a straw and try sucking out of the other end - you'll find that the walls of the straw collapse inward and that you can't suck any air out. If you were to poke a small hole somewhere in the straw, you will find that you can now suck air through it; the bigger the hole, the more air you can suck. Obviously, any fan you install in your grow room isn't going to be powerful enough to create enough negative pressure to suck the walls inward, but what will happen is that your fan will draw more energy, make more noise, run hotter, break down much sooner than it should, and finally, suck very little (if any) air out of the room. An intake port can be anything from a gap under the door to an open window - even a hole in the wall. The best place for an intake port is diagonally opposite from your exhaust fan; that way, air has to pass across the entire room - very efficient. You can put a piece of screen over the opening to keep insects and animals out, a piece of A/C filter to keep dust out, or a Louvered Shutter or Backdraft Damper that opens when the fan turns on and closes when it turns off. You can also use a Motorized Damper. This gets installed in-line with your ducting and is plugged into whatever device controls your exhaust fan. When your fan turns on, it allows air to pass. When your fan shuts off, it seals completely, preventing CO2, air, odor, etc. from passing. You can get creative with these devices and use one fan to control two rooms, etc.

One last note about intake ports - you will see much better results from your exhaust system if you install a second fan to create an active (as opposed to passive) intake system. Normally, when your exhaust fan sucks air out of your room, air is passively going to get sucked back into the room. By installing a second fan on the intake side, you will reduce the amount of negative pressure created in the grow room, thereby cutting down greatly on the amount of work the exhaust fan has to do and allowing much more air to pass. Ideally, the intake fan should be the same size as the exhaust fan, but it can be a little smaller if necessary. If you're not sure or you don't want to spend the money, start out with just an exhaust fan. If it's not performing as well as you thought it would, try adding an intake fan - you'll smile when you see the difference!

Fan and Carbon Filter Placement
If no carbon filter is being used then place the fan at the highest possible point in the room; the reason for this that hot air rises and it is the hot air that needs to be exhausted. Also, place the fan on the opposite side of your intake. The negative pressure that the fan creates in the room will pull air from the intake opening across the garden and towards the fan. This will bring the fresh air over the plants while displacing the old stale air.

If a carbon filter is being used then place the fan on top of the filter. There are two options that a grower can use with the carbon filter: 1) Suck through the filter or 2) Blow through the filter.

Sucking air through filter is the preferred method. Carbon filters should be placed on the floor standing upright or hung horizontally from the ceiling. Place the fan and filter in the room opposite the intake port. From the fan, attach ducting so as to exhaust the scrubbed air out the room. Keep the ducting as short as possible and avoid any bends in the ducting. Keeping the ducting as short and as straight as possible will reduce the friction loss and noise.

Blowing through the filter is a less commonly used method of exhausting. The benefit is that the fan can be placed at the highest point in the room and the hot air is sucked out of the room and forced through the filter. However, if you're using the fan/filter combination as part of your exhaust system (as opposed to just an odor scrubber), it will need to be placed outside of the growing area.

Before using a carbon filter for the first time always take the filter outside and then first suck, then blow through it before installing it in your growing area. This will blow out any carbon dust which is created in the filter during transport. During normal operation always keep the dust sock on the filter; this stops large dust particles from blocking the filter and will help prolong the life of the filter.

Air Circulation
Always provide your plants with adequate air movement and circulation in the grow room. Air circulation within the room eliminates stale spots and also reduces the formation of micro-climates within the leaf canopy. If air circulation in the grow room is poor then the micro-climate in between the plants increases in humidity and temperature. This can result in mildew and insect problems, as well as less deficiencies. For adequate air circulation use a wall mounted fan; 2-3 fans will provide sufficient air movement. Never switch these fans off unless you are spraying or fogging your room.

 

[Wingman420]

re: 480W & 720W Grow LED Hydro - Land Of Clovers

Happy New Year brother!

Great post on venting and calculations for exhaust, intake and variables! As Always I am impressed even tho you "borrowed" the info it has now become yours.
Great Journal
+Rep
5 Stars

 

[Redoctober]

re: 480W & 720W Grow LED Hydro - Land Of Clovers

Hi Irish, Happy New Year! I'm a new poster here but have been catching up on your journals recently. You have done amazing things and have truly helped LED's come to the forefront where they belong. It was your 600W LED journal that inspired me to purchase two 180W LED's from Mike...they are fantastic! So thank you!

anybody looking to buy one of mikes lights because of my grows let me know. I worked out a deal with mike for my supporters to get a discount, as a thank you from me to you for making my grows what they are. Thanks everyone.

Wish I knew that a few weeks ago haha!
One question that has been rattling through my brain is: what do we do when our lights reach the end of their useful lives?
With most any other type of light, you simply replace the bulb, but we can't exactly do that. So at the end of 10,000 hours or 833 days (12hrs/day) or 2.28 years, what happens? And how much will it cost?

 

[GrowLEDHydro]

re: 480W & 720W Grow LED Hydro - Land Of Clovers

Hi Irish, Happy New Year! I'm a new poster here but have been catching up on your journals recently. You have done amazing things and have truly helped LED's come to the forefront where they belong. It was your 600W LED journal that inspired me to purchase two 180W LED's from Mike...they are fantastic! So thank you!

Wish I knew that a few weeks ago haha!
One question that has been rattling through my brain is: what do we do when our lights reach the end of their useful lives?
With most any other type of light, you simply replace the bulb, but we can't exactly do that. So at the end of 10,000 hours or 833 days (12hrs/day) or 2.28 years, what happens? And how much will it cost?

Happy new year everyone!

In regards to your question about the panels the life expectancy is 50,000 hours for my panels so you have a little longer than two years to use them.

Check out this new Spectra LED grow going on:

Dexter4Morgan's Kill Room - The LED Revolution Continues Grow

 

[CanaHealer]

re: 480W & 720W Grow LED Hydro - Land Of Clovers

I stole this!!!


How to size your exhaust fan

There are many calculations on the web for sizing a fan for ventilating grow rooms; however, what these calculations fail to take into consideration is the friction loss on carbon filters, increased temperatures from HID lights and CO2, etc. The following calculation can be used as a guide for sizing an exhaust fan for a growing area (keep in mind that this calculation will give you the lowest required CFM required to ventilate the grow room):

Step 1 – Room Volume
First the volume of the room needs to be calculated. To calculate multiply length x width x height of growing area e.g. A room that is 8' x 8' x 8' will have a volume of 512 cubic feet.

Step 2 – CFM Required
The fan should be able to adequately exchange the air in a grow room once every three minutes. Therefore, 512 cubic feet/3 minutes = 171 cfm. This will be the absolute minimum cfm for exchanging the air in a grow room.

Step 3 – Additional factors
Unfortunately, the minimum cfm needed to ventilate a grow room is never quite that simple. Once the grower has calculated the minimum cfm required for their grow room the following additional factors need to be considered:
Number of HID lights – add 5% per air cooled light or 10-15% per non-air cooled light.

CO2 – add 5% for rooms with CO2 enrichment

Filters – if a carbon filter is to be used with the exhaust system then add 20%

Ambient temperature – for hot climates (such as Southern California) add 25%, for hot and humid climates (such as Florida) add up to 40%.
Example 1:
In our 8’ x 8’ room we have 2 x 1000w air cooled lights, and we plan to use a carbon filter. We also plan to use CO2 in this room. The ambient temperature is 90°F, however, we will be using air from another room that is air-conditioned.

Minimum Required CFM to ventilate room:
(CFM required for room – step 2) + (CFM required for room – step 2 x 10% (2 air cooled lights)) + (CFM required for room – step 2 x 5% (CO2)) + (CFM required for room – step 2 x 20% (Carbon Filter)) + (Ambient Temperature 0 (Air coming from air-conditioned room)).

= (171cfm) + (171cfm x 10%) +
(171cfm x 5%) + (171cfm x 20%) + ( 0 )

= 231cfm – this is the absolute minimum cfm required to ventilate your room.

.....

Great post! Very nice to have straight forward formula like that.

I am confused by one part however.
My understanding is that with co2 the primary reason for ventilation is temp & humidity control. Also ventilation should not be run continuously with co2 or the gas is wasted. So I don't understand why the formula has increased cfm for co2. Is that because the ventilation should only come on as needed, and then it should exchange the air more rapidly than a continuously vented area? Then get back to no venting and higher co2 levels in less time? Also with co2, above average temps are desired, correct?



SS, Your journal has been amazing! Great work.
I really look forward to your next mythbuster/head2head/experiment/whatever you decide.
Whatever you do decide to do will be detailed, thorough, and well executed. A total pleasure to follow. cant wait.

Irish, I am so glad you doing the all organic XG thing with the one set, and no ph on the watering. I absolutely love the Idea of a super simple, all organic, system like what you are testing out. What a great service you are providing to everyone by testing these products out and letting us all see what happens. Question: Do you know when they plan on putting that tea for sale to the public?
Everything looks incredibly healthy! You are really getting the CRF/TRF stuff dialed in, Much respect!
Cant wait to see some more 2 litre monsters!
Peace, CH

 

[Setting Sun]

re: 480W & 720W Grow LED Hydro - Land Of Clovers

SS, Your journal has been amazing! Great work.
I really look forward to your next mythbuster/head2head/experiment/whatever you decide.
Whatever you do decide to do will be detailed, thorough, and well executed. A total pleasure to follow. cant wait.


Peace, CH

thanks CanaHealer

I'm thinking of doing a very informal journal of my current grow while I figure out what's next .

 

[Redoctober]

re: 480W & 720W Grow LED Hydro - Land Of Clovers

Happy new year everyone!

In regards to your question about the panels the life expectancy is 50,000 hours for my panels so you have a little longer than two years to use them.

Thanks GrowLED (Mike if that's you). That would be more like 11 years then. Much more time than anyone would need...who knows what new technology will be out in 11 years haha!

But just for arguments sake, let's say that after about 5 years there is a drop off in performance, would we send the lights in to be serviced? Can they be serviced? I'm not well enough acquainted with LED technology to know if this is a plausible scenario. For instance, since a HID light is based on filament and gas technology, over time it can lose it's potency. Are LED's the same? Or is an LED an "all or nothing" type of situation where a bulb either put's out all 1k or goes out completely?

LED lights are so new that I don't even know if anyone could even say for certain how they perform after 3 or 5 years, let alone 10. I'm not knocking LED's in any way, I think they are amazing, and probably the future of growing as well as who knows what else. It's just different in the way that you can't just run out and replace a bulb (maybe in the future).

This begs a more likely question, what if a single bulb or two go out?

Thanks GrowLEDHydro, I truly think your lights are unique, incredible, and surpass HID watt for watt in performance!