I know the ideal temperature in the growroom is 24-25 Celsius. Iā??ve just plugged my lamp and the room climbed to 31 Celsius.
What to do ?
Would getting more fan in the room cool things off or do I absolutely need another intake ?
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I know the ideal temperature in the growroom is 24-25 Celsius. Iā??ve just plugged my lamp and the room climbed to 31 Celsius.
What to do ?
Would getting more fan in the room cool things off or do I absolutely need another intake ?
another intake
stronger exhuast... what kind of light are you using?
maybe a cool tube...
love, kp
BLOW A FAN RIGHT ON THE LIGHT.
^^This.Quote:
Originally Posted by kindprincess
^^Not this. Sorry, but it won't help much.Quote:
Originally Posted by BOYZNUS
:thumbsup:
TGF
FUCK ME ... It finally reached 34 Celcious !!!!!!
I'm using Hotilux super HPS (1000W). I'm getting another intake today so all should be well.
The goal is 24 - 25 celcious right ?
Give your plants some silica blast to protect them. It really helps if you have temp problems.
silica blast?
How big is your area? I have a 1K Hortilux in a 4x3 cabinet and I know how hard it is, but now mine stay under 80F which is about under 23C if I remember the math right. and I may have a few tips as well. What are your ambient temps, meaning in the room with out light on? Also, can you modify the home if need be?
Adieu
Having run a 1000 watt in an even smaller area, getting rid of the heat can definitely be a problem. But there are a variety of things you can do to rid this issue; unfortunetly they all cost money and some are impractical (to much noise, etc).
First and foremost, I am going to assume that your 1000 watt hood is aircooled (meaning that air is pulled from the hood, over the bulb, and exhausted out of the grow room. If not, well then obviously this is your biggest problem. If you are venting the hood already, consider making sure that you are getting the absolute most efficient power out of the fan. This can include taping the glass (painters tape leaves no residue and can handle the heat) and the seems, using 90 degree hard elbows where your ducting makes a turn, and setting up the fan with the least amount of turns and distance from the hood. In my experience, you need about 300cfm to vent a hood well enough to provide major cooling (ie a 4" inline fan or a speed controlled 6").
With a Cooltube hood, you can get even more efficient airflow over the bulb resulting in even cooler temperatures. Consider insulating your hood as well. Are you using a passive intake or an active intake? Where is your intake being drawn? Your not drawing intake from the same place your exhausting are you? Im my experiments, I found it is much more efficient to use 1 single powerful fan to exhaust in conjunction with a "sealed" room. With a 300-500cfm fan pulling air from a small closet, all you need is a passive intake and youll have a LOT of air moving through.
A circulating fan inside the room will move air around and help with circulating, and having the fan pass over the hood will also help cool it (but only with dissipation). Finally, make sure your ballast is outside of the grow room; this is a large source of heat.
Aside from that, some people just dont have a cold enough intake charge so your fighting a loosing battle. You can get a small portable A/C to help this problem, or some ingenuity concerning where to pull the air from. Some of my friends pull air from the cool basement and vent into the already warm attic.
Finally...if you can afford to have 2 fans, you can seal the light from your room which will cool the most. Pull air from outside the room, through ducting, through the hood, and then out ducting to outside the room. This means that all the air cooling the bulb and hood is cooler then the ambient temp inside the grow room. You then will need a seperate exhaust fan to exhaust the room itself. One 300cfm inline fan will exhaust a room much better then a 150cfm squirrel cage intake and a 200cfm squirrel cage exhaust.
Woah lots of good information Racerx! For a person about to power an 1,000w HPS You just gave me some great tips (And probably saved me alot of money!)
For an 1,000w pulling cold air from outside would a 4-6" inline work (as an intake)
and
http://www.rewci.com/poatvewith.html
as an out vent/temp control?
FUCK ME! 2 intakes didnā??t fix my problem and actually made things worse as it created a negative air flow.
I have no choice ā?¦ I will change my intake so that it sucks air from outside instead of inside the house. Iā??m also getting one of these power bar / thermometer so that if it gets too cold in the grow room, it will simply stop and start back when the temp is high again.
Thanks again for the help.
Got me thinking as well, why the fuck don't they make fans that have a thermostat, effectively extraction fans with A/C capabilitys.
Anyway, when it comes to cool tubes, its something that needs to be thought about, because the sacrifice you make to remove all the heat off the bulb is losing lumens. In my opinion, an open bulb is much much more efficient than keeping the bulb behind layers of glass.
Someone mentioned that blowing on the bulb with a fan wouldn't be effective, with an extraction setup at the top of the room it would. Just blowing the hot air around the room, obviously not. Alot of people cool open bulbs with a simple fan ---> extraction setup.
If you plug that extraction set up to a vent tube (like a wider vacuum cleaner tubing, f.ex.) that leads right to the lamp, where the air is hottest, that should help.Quote:
with an extraction setup at the top of the room it would
From what I understand, exhausts/outlets need to be bigger than inlets
You mean a cool tube no? That's not what I mean
So here are the results :
With the intake coming from outside, I was able to maintain the temperature to 27 Celsius. I will go with this for now as itā??s getting colder everyday so I should be able to maintain my temp at 24 ā?? 25 within 2 to 3 weeks!
Thanks again
That's great news man!
Our room gets to like 82 degrees fahrenheit (27 degrees C) at plant level with our 1000watt in a cool tube with the only ventilation being a shitty plastic wal-mart fan rigged to pull air out of the room through the cool tube and 2 oscilating fans in the room. Very ghetto exhaust, but keeps the tube cool enough to touch without burning your hand, even though not cool by any means. Imagine how cool it would be with a real exhaust fan? You should try one and I bet it would lower your temp below 27 :rasta:Quote:
Originally Posted by 9KtuFK
Oh, and check out my grow, I don't think the few lumens lost in the glass hurts much, the girls have grown so much since we turned it on :) I can't imagine what my room would be like without the HPS behind glass, something like hell but brighter lol.
Man when I'm high I'm a dick hole and don't read the whole thread before posting :rasta: Lol, racer x already owned the cooling question.
Heat is my biggest enemy with my cabinet-in-a-closet system...
I have an air-cooled 400 watt light in a relatively small cabinet, and the cabinet is a bitch to keep cool. I'm trying different variations on ventilation with a 6" vortex fan and a 265cfm squirrel cage fan. I also have a thermostat and variable speed controller for the vortex fan. A window AC unit cools the ambient air in the room.
The idea is that the room is kept cool with the window AC unit. When the box warms up, the vortex fan kicks on, pulling cooler air from outside the closet and venting the warm air to the attic or outside.
I may use the squirrel fan to cool just the light. I'm also considering an attic fan to cool the attic...
I'll try to remember to post the details of my final setup.
I also have a trouble keeping the room cool im running 85-90 sometimes im thinking about getting one of those portible a/c but i want a cheaper way!!!
thereis a cheapper way! :) get a larger out let fan! it reeaaallly is that simple! there such a worth while investment! :)
I have a huge fukcin fan these days, but it still comes down to if you can access cool air or not for the intake.
yea true! i suppose it depends on your native climate! :)
Or add co2 then u can use the high temps . just antoher idea to bounce around.be safe the postman.
Question about temperature:
Plants in Mexico and southern states grow in very high temperatures. So why is the recommended temp for indoor plants 72-76F ?
different strains do like dif temps! but i think it might be a general ideal temp. it is known that mg grows best at 25c :)
I'm pretty sure it's because maximum photosynthesis occurs between the temperatures of 75-80 degrees F, but don't quote me on that...
Keeping an exact constant temp of around 78 is almost impossible with temps dropping at night i have been trying to acheive this with inlet and exaust fans for years nearest i have got is 78 lights on 72 lights of but was having a chat with tom the hippie the other day and he recomended a site for lights and i came across this at a good price so ive ordered it so when its fitted i will post a report on it afficiency.be safe the postman.Hydroponics grow room control|Grow room heaters an
the first product at top of the page
Arr dam you! lol!! im jealous! I found that 1 which is slightly better than my own just after purchasing the one iv got! Sodding always they way eh? Yea il also post some details on mine. an environmental control unit is the best way to control you temps and humidity! :)
Theres quite a few on the market but theres a lot more in the usa and there cheaper but due to voltage and the plug size you have to order 1 from your own country! :)