What the hell can I do to lower the temperature?!!

[Kushnblayzin]

Seriously guys I've asked 3 or 4 times now and still fuck all, the temperature has even gone up with a couple of the suggestions! I have my exhaust going to a window practically on a level straight from the tent, no drops or hills or curves or bends! my Intake line has been shortened giving it a little more power and is drawn from my landing outside of the room the tent is in. my fan is on full blowing through my air cooled hood and out by the window, both are 6", my intake fan is 4". I also have an oscillating fan for circulation blowing onto my canopy which is on 24/7 this is 7". My 6" fan has a temperature probe on it but I don't know how to use it whatsoever I have it centred beneath my lights at canopy level in the shade, my hygrometer is in the back corner, it was under the light and when it was it was reading 30 degrees Celsius, after everything I have done from suggestions from this site the temperature is now at 32 degrees Celsius, and this is with both side doors wide open on the fucking thing! if I can't get this sorted I'll have to pull the plug and stop the grow because I have no more £ at hand to invest in other shit like an AC I've seen people on this very site from the same country as me with the same sort of shit I have and they are sitting pretty at 26/27 degrees Celsius and if they need to raise or lower it they can, where have I gone wrong and what can I do to sort this mess out?

 

[Holylander]

Hey man. It's going to be hard to cool anything below what the ambient temperatures are outside. If you are air cooling your light, the temps in the grow area will probably be 2-3 C above the ambient temperature of the air you are bringing in. That's normal. Even if you are power exhausting, without active AC cooling (which most people do not use) you won't get things down below what the actual temps are of the air outside which you are in taking in. I hope that relieves a bit of the pressure you are feeling re your setup. I live in a very hot place, my temps are 27-28 night, and 31-34 C during lights on.

Don't scrap your grow, just make sure there is plenty of fresh air for the plant. It will grow, flower and yield too. You are only a few degrees from the 'optimal' temps, and the air outside will start to cool by itself soon. Don't go crazy trying to get temps down to please any optimal guideline.. That's an optimal guideline, nothing more. Few things in life, or the life of a plant are 'optimal'. People are growing with awesome results with your temps. Don't be discouraged. Keep the plant watered, and give it a lot of air. Good luck.

 

[ThorGanjason]

Yup, if you're pulling air from outside consider that the minimum, and its only going ton get higher from there.

The more equipment you have the better. Bigger fans, bigger hood, etc. Personally I had to go out and drop $100 on a window mounted air conditioner. It works wonders, provides fresh intake (not too strong so its easily exhausted with a decent fan), and can help keep your humidity low in flowering

 

[Kushnblayzin]

That's the part I don't get man I put my hand over the plant for around 10 minutes earlier and it wasn't hot or uncomfortable at all I could have stayed there longer if it weren't for the awkward position, there's plenty of air flow in and around the tent the ambient temp is around 26/27C or 80F I live on the coast and not one famed for it's hot weather but more so for it's fucking rain, my head is seriously twisted up on this one it's bugging the shit out of me dude, Thanks for the reply though man! I'll be switching the intake and outtake around tomorrow maybe this will do something? all windows and doors are open throughout the house save for the front and back so it's not like I have stagnant air anywhere and there is one hell of a breeze coming through the windows.

 

[topfuel29]

-First thing look at the weather on-line for the area you live. Find out what time at night the Temp. goes down. Only run your lights after the temp dips.

-Crazy Light Schedules/ you don't have to run 12/12 or 18/6 or 24/0 or any constant light cycle. There was this light schedule I seen here on RIU. Where your light came on for only 4 or 5 hours and went off for 2-3 hours, and then back on for 4-5 hours for flowering. Or something like that you'd have to research it. I know the photo receptors in the pigment of the plant stay active quite a long time after the lights have gone off. Even though there is no photosynthesis going on the plant still thinks the lights are on.

-you can cool the air with more fans.

-you can leave the doors open during the day. don't run the lights at all during those really hot days. Your plant can go quite a few days with out light.

-If you can't get a A/C when temps get really hot your options are limited.

 

[Kushnblayzin]

the time is 9 pm so if anything the temps should be lower now than mid day I get that but they remain the same

 

[Kushnblayzin]

Gas Lantern Routine is this what you mean Top Fuel?

 

[grorite]

is the outtake fan a legit fan is it an inline? or one of the cheap booster fans

 

[fir3dragon]

How to lower temp?

-ccooltube
-bigger ac
-bigger exhaust
-bigger passive intake
-vent all heat outside grow area.

 

[Kushnblayzin]

the exhaust fan is an inline

 

[grorite]

well there isn't much you can do without an ac. you will never get it cooler than ambient temps. most likely be a few degrees warmer than ambient.

 

[fir3dragon]

the exhaust fan is an inline

Ok, hook the filter to the fan, suck air through the filter push through cooltube and vent into roof. Intake should be passive and a bigger ac then needed is recommended in my opinion, id rather have a ac that turns on and off then have one that stays on constantly..

 

[Highocaine]

Swamp cooler + more airflow to battle increased humidity.. Although you said you had lots of rain, and swamp coolers aren't as effective in places with high humidity. Just one more option that's a little more affordable than AC.

 

[topfuel29]

Gas Lantern Routine is this what you mean Top Fuel?

Good Info man
It's something similiar to that, but I thought it was shorter cycles when the light was on. so it wouldn't get to hot in the tent.

 

[Kushnblayzin]

Ok, hook the filter to the fan, suck air through the filter push through cooltube and vent into roof. Intake should be passive and a bigger ac then needed is recommended in my opinion, id rather have a ac that turns on and off then have one that stays on constantly..

Does venting into the ceiling actually work or does it just dissipate the heat along the ceiling? I have tried having the filter hooked up outside the tent with no change I will try it in the tent when I get a chance to get in there. Thanks man

 

[fir3dragon]

Does venting into the ceiling actually work or does it just dissipate the heat along the ceiling? I have tried having the filter hooked up outside the tent with no change I will try it in the tent when I get a chance to get in there. Thanks man

When I vented into the roof, I could feel the air coming out of the walls through the power outlets I hook fan and filter inside the tent I got them real long hvac zip ties and zip tied it to the bars

 

[tekdc911]

My 6" fan has a temperature probe on it but I don't know how to use it whatsoever I have it centred beneath my lights at canopy level in the shade

he answered it in his own post
raise your probe higher
im assuming it turns the fan on and off ?
is there a controller any pics ?

 

[Kushnblayzin]

No smart ass I didn't answer my own post I only stated where I have placed the temperature probe, the issue is it doesn't turn the fan on/off nor does it tell the fan it needs a bit more power to lower the temps, so far no one has been able to give me any helpful advice on this section of my query. There is a controller above the fan yes with two knobs, one for speed the other for temp. I will upload a picture when it's more convenient as right now the house is asleep.

 

[Kushnblayzin]

When I vented into the roof, I could feel the air coming out of the walls through the power outlets I hook fan and filter inside the tent I got them real long hvac zip ties and zip tied it to the bars

So it works or doesn't I dunno if hot air blowing through my outlets is a good thing? or is it something that doesn't really matter as it's not hot enough to do any real damage?

 

[smokinafatty]

My tents stay 85-100 all summer and it isn't a reason to murder your plants. They still grow, maybe a little slower. Run the lights at night. Mine currently (it's summer) are on from 10:30pm - 10:30am.