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RDWC Soon....

Chillers are expensive to purchase. But more efficient than AC is to run. Besides making the room itself cool enough to chill the water, only other option is not to grow hydro.
That’s why I do soil in the summer times.
 
Thumbs up to everything Toker1 suggested. And when he talked about running costs per month, I wonder if your space has the power available? Even if you run 240V everywhere, you're going to be pulling 40-50 Amps, maybe more?

If 2.5 Lbs is the goal, you can do it with less than half of the 4000W you were considering. I'm a hack at growing and I consistently get a pound from my 1000W. For the space I have available, I'm under lit. I'd guess that I could double my weight with two 600s run side by side, and without changing my setup substantially.
 
HappyDaze Toker1 everything can be powered and the environment will be perfect, just need to HACK the pound method per light like you said...
and I do 100% understand the training of the plants to make the light efficient etc

I;m just a little lost at ONE 1000w double ended hps light and how I can yield the goal amount

meaning... in a 4x8 (96 x 48 x 80) big tent environment with THREE plants, big totes/tubs for roots of each plant, ONE double ended of a 1000w can get my desired 2.5 pound yield????

do you think that one light will cover that entire space efficiently ????


also the two 600 side can double that weight??? that's 1200w in total compared to 2000w ??? send me knowledge please lol
 
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One 1000w light with DE bulb will cover a 5x5 space nicely. Yes, you can get that off 1plant if you veg and train long and well enough. You can always buy the book three per light by Joshua Haupt for a full in-depth tutorial on how to accomplish 3 lbs per 1000w light. It’s mostly strain dependent. Like I said before, it’s about discovering your limiting factor and eliminating it. You will find your first limiting factor after growing your first batch. No one here can offer any crystal ball advice...you can either follow what someone else has already done (buy the book or find a tutorial). Or you can figure this out by trial and error. Grower skill level has more to do with yield than anything.
 
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Toker1 understood! I guess the real question I'm asking here is which would be the best / MOST light coverage + wattage combo for a 4x8 rdwc style grow tent AND be most efficient ??????

HappyDaze said I can accomplish a 2.5 pound yield in a 4x8 tent with half of 4000w that I had chosen...

so that's where I'm at RIGHT NOW
 
Depends, are you running co2 or not? Co2 requires heavier light saturation to be efficient.
If not, you can use 2 each 600w lights and yield your goal assuming you can accomplish 1 gram per watt with your skill level.
1000w light could be inefficient in a 4x4 if the light hits the side walls. So that depends on your reflector.
So many factors that determine yield. Not all feet fit one shoe if you know what I mean.
 
When Toker1 says he can get 2.5 / 1000, using a good DE lamp, you have to remember....that guy is very good. I don't think he could or would try to light the whole 4 x 8 space, unless it was on a light rail, which is a good option BTW.

I say 2 x 600 to get 2 Lbs in my 6.5 x 6.5 space, with my limited skills and the genetics I'm growing. Here's why...

Using 2 x 600 vs 1 x 1000 to double yield is possible because you're able to effectively cover a substantially greater footprint, so the ratio isn't 1200/1000, it's greater. The distance / intensity ratio plays a huge factor because light intensity diminishes at the square of the distance from the bulb. Say you have a bulb 2 ft straight up from your buds and you're delivering 600 μmol/s to the center of the canopy. If you measure the light 2ft to one side of center, your bulb is actually closer to 3ft from the bulb and that 600 μmol/s drops down to just 300 μmol/s. If you overlap the beams on the 600s properly, you can effectively cover pretty close to 50% more area than you are able to light with one conventional 1000W HID. You know yourself, those colas in the center are where the weight's at. Easy to see how adding to that perfect light zone can 2x your weight.
 
It took me many years of yielding next to nothing to discover what not to do. Cost a lot of electricity and many moldy jars to get to where I am at over 20 years after my first grow.
 
Toker1 said:
Here is the book I was talking about. He says if you follow his methods to the “T”. You can yield 3lbs per 1000w light.
https://threealight.com/
Click to expand...

yes yes I know about the schwazzing and defoliating the plant along with topping, screening, training etc bro lol

okay so another question and I'm not trying to get you guys to give me an GUARANTEED answer...
I'm asking more of IF YOU HAD THIS SET UP I'm attempting to create WOULD IT BE EFFICIENT FOR YOU IN GENERAL TYPE OF ANSWERS...

like reading it on paper, DOES IT LOOK GREAT ON PAPER TYPE OF ANSWERS YA KNOW LOL

how about 2 600 w hps lights with 2 air cooled hoods and ballasts IF I decide NOT to add an co2 tank, still possible??




I feel like I'm short selling myself with two 600w lights in attempt to equal out to 1000w

but coverage coverage coverage is the goal but I NEED LIGHT PENETRATION INTO THE PLANTS
so I probably will add the co2 tank.... will this help the 2 600w lights??

but if I do will the light of 2 600w hps with the 2 air cooled hoods and c02 tank do the trick of yielding 2 pounds and a half ????

assuming the LIGHT COVERAGE IS THERE from the 2 600w lights..




BUT if I was to buy ONE double ended 1000w light with an AIR COOLED HOOD to stretch the light through out the tent
would that be a enough coverage and light for all THREE plants?????

and I also thought about adding a combo of ONE 1000w HPS DE + 600W HPS + c02 tank .... how does this sound ??
 
Right. But how far apart should the branches be spaced? This has a lot to do with yield and is completely strain dependent. All anyone can say, is with proper set up and technique you can max out at 1g per watt or so.
I have gotten great yields with little to no defoliation.
I would say efficiency is low, especially when you have small little seedlings and you are blasting them with 600-1000w.
Now when the tent is all filled up from one end to the other...that efficiency seems good to me. But the first month or two (juvenile plants) will not be efficient at all.
 
the goal RIGHT is construct the FOUNDATION of the system to yield this amount without question even if I have to make changes which is why I am here...

I will make the changes to be efficient as possible in all areas
 
Something I forgot to include to your detailed list of items was circulation fans. Oscillating fans that blow across the plant tops. Very important.
 
I would start them off on a much smaller wattage. Increase the light intensity as the plants grow larger.
 
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Planting 3 strains that are different will lead to different plant heights. So if one becomes taller, or is more prone to stretching...that could be your limiting factor.
Unfortunately none of those strains will ever yield 1gram per watt no matter what you do. They are all only medium yielding. Expect to max out at 1/2 g per watt. .
 
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Yes, high quality. Just not big yielders. I have had good yields with Sour Diesel, Wonder Woman, white Buffalo, and incredible bulk.
 
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