10x15 grow room

Blue brother

Blue brother

Well-Known Member
Hi all, I’ve been given the opportunity in the near future to fill a room in a friends house while he’s away travelling, probs gonna get a year out of it.

the room is 3mx5.8m, I wanna use 3mx4.5m for flowering and leave the rest of the space for a big res and work bench.

I was thinking I’d use some 1000w lumatek/phototek de 400v hps hung at their highest for the meat and potatoes lol, I might addsome cmh in also.

im thinking about going with 1000w per 5x5 but I allways used one per 4x4 in the past, I was using single ended bulbs in cool tubes back then, but I’ve been assured by someone I know that 1000w de 400v is definitely enough for a 5x5.

so if this is the case I’ll be using 6 to cover the 10x15.

I’m currently in the process of pricing up the other equipment I’ll need and I’ll post more as I narrow my choices down for advice.

does anyone have any experience using these industrial type dehumidifiers

EB529AD5-90E3-4B56-AB99-ED3A80A7DD41.png

how do they work on say a g.a.s vpd controller ? I’ve never used a dehumy like this so have no idea.

Edit: before anyone says use leds, the budget just doesn’t allow for this, but I use them in my own grow and know they’re fantastic.

Thanks for any help guys all input is welcome and I appreciate it
 
Lenin1917

Lenin1917

Well-Known Member
Dehumidifiers all work about the same, I have a similarly specced home grade dehu. I just keep it set at 50 and exhaust the room outside. No problem maintaining granted I’m only using 32sqft of flowering space but there’s 65 gallons of soil in those pots and humidity is good doesn’t get higher than 65% in lights off.
 
thumper60

thumper60

Well-Known Member
I would step it up to at least a 70 90 be better it would run a lot less that 50 be cranking all night.
 
Doggonewild

Doggonewild

Well-Known Member
all that money buying equipment for 1 year weed prices where u live must be expensive as shit its like 1500 a lb here thats like close to top shelf
 
Blue brother

Blue brother

Well-Known Member
Lenin1917 said:
Dehumidifiers all work about the same, I have a similarly specced home grade dehu. I just keep it set at 50 and exhaust the room outside. No problem maintaining granted I’m only using 32sqft of flowering space but there’s 65 gallons of soil in those pots and humidity is good doesn’t get higher than 65% in lights off.
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I too need a lot of soil I use about 100 gallons per 4x4 now in a fabric planter, I’m only really confident with living soil these days, but looking for a way to use less media so there’s less water, I hear grass roots pots do a good job but still water escapes from the top
 
Jjgrow420

Jjgrow420

Well-Known Member
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Blue brother

Blue brother

Well-Known Member
bam0813 said:
Just curious but has this room been set up as s grow before? Curious about electrical capacities
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No but I’m very handy I will be using a large capacity contactor board and can wire that myself, and have an electrician friend connect it up on the mains end
 
Kassiopeija

Kassiopeija

Well-Known Member
Blue brother said:
Can anyone confirm or deny that 1000w de is enough for a 5x5 ?
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The double-ends are about 1700umol and degrade less (-10%) then stabilize. It will do but won't reach the raw output of LED. How are the temps there? You could throw 2 1000w high-K MH in between the square of each 4 HPS, in a vertical reflector hood so the light disperses rather to the sides. For some UVA/blue and colour-true sight
 
MidnightSun72

MidnightSun72

Well-Known Member
My room is 10x17. A 70 pint home grade dehu does fine and controls humidity quite easily.

if you are going with 6 1000W DE you will need around 24,000 BTU of AC minimum.

1000W DE is enough for a 5x5 especially in a multi fixture arrangement. But you need to hang them high 30-36" above your canopy. So if head space is limited it might not be the greatest option.
 
Blue brother

Blue brother

Well-Known Member
MidnightSun72 said:
My room is 10x17. A 70 pint home grade dehu does fine and controls humidity quite easily.

if you are going with 6 1000W DE you will need around 24,000 BTU of AC minimum.

1000W DE is enough for a 5x5 especially in a multi fixture arrangement. But you need to hang them high 30-36" above your canopy. So if head space is limited it might not be the greatest option.
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I won’t be using ac, I can scale up ventilation pretty well and deal with heat that way. There’s high ceilings so 3ft distance is fine

also I use fabric beds full of living soil, 125 gallon per 5x5 and water in the region of 6-7 gallons every 3 days, so that looks like 42 gallons of water every 3 days. I was actually thinking I might need 3 of these dehumys Haha
 
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Blue brother

Blue brother

Well-Known Member
Kassiopeija said:
The double-ends are about 1700umol and degrade less (-10%) then stabilize. It will do but won't reach the raw output of LED. How are the temps there? You could throw 2 1000w high-K MH in between the square of each 4 HPS, in a vertical reflector hood so the light disperses rather to the sides. For some UVA/blue and colour-true sight
Click to expand...
The fixtures apparently put 2100umol/s out but we all know that integrating sphere testing doesn’t translate to real world application. At 1700 per 5x5 I’m thinking I might throw in a couple of 630w de cmh into the room. I’ve used 10k with good results in a chequer board config before so using them as supplemental lighting along side the hps isn’t a bad idea, I did however prefer cmh + hps over 10k mh + hps. Thanks dude
 
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