Jump to content

  • Log in with Facebook Log in with Twitter Log In with Google Sign In »
  • Register Now!
Grass Outdoors Shade Purple Orange Blueberry Watermelon Apple Banana Strawberry Chocolate
WARNING/DISCLAIMER The OZ Stoners cannabis community contains information regarding cannabis & other drugs; it is designed for mature (18+) audiences only. This site in no way condones the use of cannabis by minors. The content here within this cannabis community is for educational & entertainment purposes only. Any buying/selling or trading of illegal cannabis seeds, clones, flowers, resin or oil is strictly prohibited within this cannabis community. - Login to remove this message
CYCO Platinum Series Hydroponics Nutrients & Additives
Massive Bloom

Photo

250w HID light in wardrobe, heat a problem, is light too powerful?

- - - - - stealth light heat wardrobe closet indoor

  • Please log in to reply
19 replies to this topic

#1
SpaceMonkey23

SpaceMonkey23

    Budding

  • Members
  • PipPipPip
  • 186 Posts:
  • Gender:Male
  • Interests:Movies, growing indoors, cooking, coffee.
  • Cannabis Use:Rec. & Medicinal
  • Fav. Type:Raw (i.e. Heads)
  • Fav. Heads:None
  • Fav. Lighting: 250w HID, CFL

Hi everyone. I have a problem with heat in my indoor grow, and I'd really appreciate the input of the experienced indoor growers on this site. 

 

I have a wardrobe. I'm trying to grow two or three small plants (personal use only). They're at the seedling stage now. Anyway, these are the relevant facts as far as I can tell:

 

  • The wardrobe is roughly 45cm deep, 80cm wide, and 120cm high. I have the plants on a shelf, so if necessary I can remove it and extend the height of the wardrobe to 150cm, but it's currently at 120cm. 
  • I have a 250w ballast and two globes: one is HPS and the other MH. Both seem to work in the same ballast (I think it's an HPS ballast and the MH globe is a special one that works with HPS ballasts). 
  • There is a 120mm exhaust fan at the top of the wardrobe, and I've drilled a few passive intake holes along the bottom. 

 

Anyway, the main problem is that when the HID light is on, the heat goes crazy. The wardrobe is in the shed, and it gets hot enough in there during the day, but the light adds about 15C to the ambient shed temperature. Thus when it's about 30C in the shed, I'm reading around 45C or more in the wardrobe. This is too high, obviously. 

 

I'm running the light about 40cm above the plants, but I can raise it if necessary. Regardless, I don't know if it will make a huge distance. The temperature readings that I'm measuring are taken at the seedling level. 

 

What I'm wondering is: is the light just too damn powerful for such a small place? Has anyone ever successfully grown using an HID lamp of this wattage in such a small space? Should I shift to CFL lights? I'd rather not, because I don't want to fork out any more money!

 

Does anybody have any input on this topic? Thanks all in advance for your help. 


  • 0

IF YOU POST IMAGES TO THIS SITE, BE SURE TO REMOVE LOCATION EXIF DATA BEFORE UPLOADING!

Here's how.

 

Current Grow:   1 x Candy Kush Auto Fem - 250W HPS - Top drip recirculating hydro in 100% perlite.

Grow 2014 - 2: 1 x Barney's Liberty Haze Fem - 250W HID - Top drip recirculating hydro in 100% perlite.

Grow 2014 - 1: 3 plants - 250W HID - top drip RTW - 100% perlite.

 

How to make a carbon filter for $20.

My review of the Da Vinci Vaporizer.

 

"He who makes a beast of himself gets rid of the pain of being a man." - Dr Samuel Johnson. 


Say thanks with some bits:  1Ed71abMUAJ3q3XBQzYzSzJRydR58kKeT1

#2
Train Wreck

Train Wreck

    Maturing

  • Members
  • PipPipPipPipPip
  • 352 Posts:
  • Gender:Male
  • Interests:Fishing and Gardening
  • Location:Near to some far from others
  • Cannabis Use:Recreational
  • Fav. Type:Raw (i.e. Heads)
  • Fav. Heads:100% Organic
  • Fav. Lighting: 3 x 315cmh

30C is pushing it, 45 is way over the top.

Have you tried vegging at night, 4pm till 10am, should miss most of the heat of the day ?

I grow and flower over the night hours

More ventilation or larger grow space.

Whatever you do you need get the heat level down.

Cfl’s will reduce the heat but also reduce your yield from what you can get from your HID light.

You have just started growing at the wrong time as the heat will only get worse


  • 1

#3
SpaceMonkey23

SpaceMonkey23

    Budding

  • Members
  • PipPipPip
  • 186 Posts:
  • Gender:Male
  • Interests:Movies, growing indoors, cooking, coffee.
  • Cannabis Use:Rec. & Medicinal
  • Fav. Type:Raw (i.e. Heads)
  • Fav. Heads:None
  • Fav. Lighting: 250w HID, CFL

Have you tried vegging at night, 4pm till 10am, should miss most of the heat of the day ?

...

You have just started growing at the wrong time as the heat will only get worse

Sigh... Yeah, bad timing I know. I tested temps at night a while ago and it was still pretty hot. I'm not surprised to discover that other people have thought of this, though. I guess I'll grow at night as you suggest, but I'd like to also get the heat down even more for those hot summer nights!

 

I'm thinking of getting a cool tube. Has anybody tried them out? Maybe a smaller one might do the trick. More money going into this project. Should have just stuck to buying the stuff!


  • 0

#4
Train Wreck

Train Wreck

    Maturing

  • Members
  • PipPipPipPipPip
  • 352 Posts:
  • Gender:Male
  • Interests:Fishing and Gardening
  • Location:Near to some far from others
  • Cannabis Use:Recreational
  • Fav. Type:Raw (i.e. Heads)
  • Fav. Heads:100% Organic
  • Fav. Lighting: 3 x 315cmh

I forgot about cool tubes, they will help.

You will need to vent the heat out of the shed, not just the wardrobe.

Venting from shed, odour control ?

That combined with night growing should help a lot.

Without aircon you will never escape from the ambient temp.

You may be spending now but if all goes well you will save ??? habit dependant amount.

I have spent thousands over the years on equipment and seeds, saved 10's of thousands

Better in my pocket than some dealer with pissy deals.

No running around trying to score for me. :greedy:


  • 0

#5
SpaceMonkey23

SpaceMonkey23

    Budding

  • Members
  • PipPipPip
  • 186 Posts:
  • Gender:Male
  • Interests:Movies, growing indoors, cooking, coffee.
  • Cannabis Use:Rec. & Medicinal
  • Fav. Type:Raw (i.e. Heads)
  • Fav. Heads:None
  • Fav. Lighting: 250w HID, CFL

Yes, you're right. I'm not a heavy user, but I'm kind of determined to get this growing thing right just as a point of personal pride. I may not save much in the long run but I want to get it sorted out since it's an interesting challenge right now. Also it's more convenient than trying to chase down dealers etc. I don't like having to rely on other people for these sorts of things!

 

Thanks for your input, Train Wreck. 


  • 0

#6
brick

brick

    live the dream

  • Members
  • PipPipPipPipPipPipPipPipPipPip
  • 3841 Posts:
  • Gender:Male
  • Interests:PAKALOLO
  • Location:Alice's Restaurant
  • Cannabis Use:Rec. & Medicinal
  • Fav. Type:Raw (i.e. Heads), Hashish
  • Fav. Heads:Bio-Organic
  • Fav. Lighting: 1x250 MH for veg 1 x 400 watt HPS flower. Mainly the sun.

You did not say if the ballast is inside the drobe or outside. If in move it out, that would be the main cause of high temps. I also think you need to get rid of the shed heat first.


  • 1
When you arise in the morning, give thanks for the morning light, for your life and strength.
Give thanks for your food and the joy of living.
If you see no reason for giving thanks,
The fault lies in yourself.




Experience hath shewn, that even under the best forms of government those entrusted with power have, in time, and by slow operations, perverted it into tyranny.
~ Thomas Jefferson (1743 - 1826)

[/size]


"Anyway i never count on anything until it's in my hand and i've got a good grip of it." d


'A true friend is someone who knows you're
a good egg even if you're a little cracked.'


Man has a poor understanding of life. He mistakes knowledge for wisdom. He tries to unveil the holy secrets of our Father, the Great Spirit.

He attempts to impose his laws and ways on Mother Earth.
Even though he, himself, is a part of nature, he chooses to disregard, and ignore it, for the sake of his own immediate gain.
But the laws of nature are far stronger than those of mankind…

Chief White Cloud. The Circle of life.


"The nine most terrifying words in the English language are, 'I'm from the government, and I'm here to help."' - Former U.S. President,

#7
Lenore

Lenore

    Nevermore

  • Members
  • PipPipPipPipPipPipPipPipPip
  • 1697 Posts:
  • Gender:Female
  • Interests:Cannabis; Crochet; Gardening
  • Location:The Land of The Yellow Brick Road
  • Cannabis Use:Rec. & Medicinal
  • Fav. Type:Raw (i.e. Heads), Hashish, Oil Concentrates
  • Fav. Heads:Bio-Organic

I have a 400w HPS in a drobe roughly 1200mm x 640mm and 1600mm tall.

I'm using a cooltube. I can't begin to imagine the heat without it! :faint:

I also have a fan sucking air out of the room the drobe is in to help keep the ambient temps down.

A shed, you're always going to have issues in I think, unless you have an AC unit out there, or you insulate the shed.
But venting the room the drobe is in, not just the drobe, is important imo.

 

Good luck.


  • 0

One for the rock, one for the crow,

One to die, and one to grow.

 

Any buying/selling or trading of illegal cannabis seeds, clones, flowers, resin or oil is strictly prohibited within this cannabis community.

DO NOT PM me asking for seeds, weed, or clones.


#8
Bat Norman

Bat Norman

    Vegetating

  • Members
  • PipPip
  • 60 Posts:
  • Gender:Male
  • Cannabis Use:Rec. & Medicinal
  • Fav. Heads:"Hydroponic"

Besides increasing your ventilation which is a must, get a couple of milk/coke bottles and freeze so you can put in your nutrient mix to keep it nice and cool, make sure they get plenty to drink.


  • 0

#9
buzzo

buzzo

    Coco rocks the Auto World

  • Members
  • PipPipPipPipPipPipPipPipPip
  • 1308 Posts:
  • Gender:Male
  • Interests:Collecting Red Wine, Growing Pot, Driving Off Road & Camping, Cycling, Pinball Machines, Mechanical Clocks, Coffee roasting
  • Cannabis Use:Recreational
  • Fav. Heads:"Hydroponic"
  • Fav. Lighting: 250 watt HPS

With a cool tube and a seperate 150mm ventilation duct my temp rise is somewhere between 4 to 5 degree's.

That's a 250 Watt HPS in a standard size fridge.

 

This is about right. Bottom line is you need a cool tube and extra cab ventilation.


  • 0

          Click here for my Autoflower growing guide in Coco :egyptdance:
Click here to make Colloidal Silver, go on you know you want to ! :egyptdance:
Colloidal Silver Grow :egyptdance:
 Live fast die young and make a stinking potent corpse.
                         The Autoflower dream :crazytwist:
Auto's Rule OK. Just ask Shroomy! :declare:
Doing BIG things in Small Places gallery_5_33_11555.pnglogo.png


#10
SpaceMonkey23

SpaceMonkey23

    Budding

  • Members
  • PipPipPip
  • 186 Posts:
  • Gender:Male
  • Interests:Movies, growing indoors, cooking, coffee.
  • Cannabis Use:Rec. & Medicinal
  • Fav. Type:Raw (i.e. Heads)
  • Fav. Heads:None
  • Fav. Lighting: 250w HID, CFL
Thanks everyone. Love the coke bottles idea! Think I'm gonna try a cool tube and run lights at night. If I can get the heat down then I reckon it will be great, as the light in that space is BRIGHT!! :D
  • 0





Also tagged with one or more of these keywords: stealth, light, heat, wardrobe, closet, indoor

OZ Stoners 710 Oil Vapour Pen Kit
CYCO Platinum Series Hydroponics Nutrients & Additives
WARNING/DISCLAIMER The OZ Stoners cannabis community contains information regarding cannabis & other drugs; it is designed for mature (18+) audiences only. This site in no way condones the use of cannabis by minors. The content here within this cannabis community is for educational & entertainment purposes only. Any buying/selling or trading of illegal cannabis seeds, clones, flowers, resin or oil is strictly prohibited within this cannabis community.