First HPS Grow - 600w - Multiple Strains - Closest

amgprb

Well-Known Member
U could run it into your room, keep it low enough, and go to your local builders supply store and buy an actual intake grate (used in alot of home for heating and cooling) as long as you dont draw attention to it, or make it look gauty, most people would believe it is just part of your heating and cooling of the house. Just a suggestion
 

lilroach

Well-Known Member
I like the vent-cover idea. Another thing that may help a little is cut another 1/2" from the bottom of the door. It helped my grow room by 3-5 degrees.
 

AllDayToker

Well-Known Member
I say keep on truckin brotha.. I'm fighting 88-91f temps right now till I get a better hood but my girls are doing great.
Sounds great I am going to have to check out grow. I just raised my lights to 17in above the pots and with the 6in exhaust and tiny floor fan I got it to 84f. I think if I get one of those nice $50 tower fans that control full room temperatures I'll be able to get it lowered below 80 no doubt.
 

TheDude0007

Active Member
Sounds great I am going to have to check out grow. I just raised my lights to 17in above the pots and with the 6in exhaust and tiny floor fan I got it to 84f. I think if I get one of those nice $50 tower fans that control full room temperatures I'll be able to get it lowered below 80 no doubt.
I am currently doing my first cab grow, size is simialer to yours so I am interested in asking a couple of questions.

Firstly what is your ambiant temp outside the cab? Do you still have the ballast inside the cab?

You see I need to have my ballast inside the cab for stealth, so that is why i am asking as I am trying to figure out what the heat will be like for me.

Good luck bro
 

AllDayToker

Well-Known Member
I am currently doing my first cab grow, size is simialer to yours so I am interested in asking a couple of questions.

Firstly what is your ambiant temp outside the cab? Do you still have the ballast inside the cab?

You see I need to have my ballast inside the cab for stealth, so that is why i am asking as I am trying to figure out what the heat will be like for me.

Good luck bro
My temperatures outside and around inside the tent is 72-75f but the temp right on top of the pots are hitting 90, which I heard is fine but not optimal. Moving the ballast out of the room did not change the heat at all. My heat has been changing from 84 to 86 to 88 to 86 to 90 to 84 to 88 to 86 and so forth and I'm still trying to dial mine down.
 

AllDayToker

Well-Known Member
Well I woke up this morning and noticed my temps were topping out at 90f. I don't understand why it's changing so much and everything I do is suppose to be cooling it down. I mean if you can see from the last post everywhere else in my grow room is 75f and my entire house being 68-72f, then 17in under the hps it's 90f. Having all sorts of problems. Should I be aiming for a sog, a scrog/lst type training, or lollipopping.
 

AllDayToker

Well-Known Member
Well I'm kind of confused at this point. My temps seem to be rising every time I do something to cool them. Something I noticed though is that my soil isn't drying out at all. When I was using CFLs and it was getting to hot, around temps I've been seeing now, the top of the soil would dry quickly, and it's been wet this entire time only after one water after seeds were placed. I'm just getting real frustrated.
 

TheDude0007

Active Member
Well I'm kind of confused at this point. My temps seem to be rising every time I do something to cool them. Something I noticed though is that my soil isn't drying out at all. When I was using CFLs and it was getting to hot, around temps I've been seeing now, the top of the soil would dry quickly, and it's been wet this entire time only after one water after seeds were placed. I'm just getting real frustrated.
Man it is a hard one. Temps should not go up just by you doing effort to lower them. I would say it is probably that you pay closer attention to the temps after you have done something so maybe you notice it more. Basicly as long as they dont go much above 90 if at all you will be fine with good airflow. Especially if you are flowering, vegging under high temps for a long time can cause problems but in the end every grow has problems at some stage.

I remember strugling with high temps in summer and low temps in winter in my previous setup. In winter at least I could ad heating but in summer I could not afford to runa A/C so I just had to do what I could with fans and lifting the lights etc.

Good luck bro you will get there I promise you, in the end all you can do is to increase airflow and maybe buy a better extractor, that will help heaps if you are not already using one, maybe along with some ducting.
 

TheDude0007

Active Member
My temperatures outside and around inside the tent is 72-75f but the temp right on top of the pots are hitting 90, which I heard is fine but not optimal. Moving the ballast out of the room did not change the heat at all. My heat has been changing from 84 to 86 to 88 to 86 to 90 to 84 to 88 to 86 and so forth and I'm still trying to dial mine down.
This is interesting to me , very very interesting. Maybe I should just have the ballast inside the cab then. If my temps increase, then ad more extraction and airflow. Stealth is a big issue for me, I can't have my landlord looking at a ballast with wires running into a cab he will think WTF and ask me what that is. Imagine growing right under the nose of someone and getting away with it. That is my situation. It works fine with my CFL's I have it dialed nicely now. But I will need to add to a hps in a couple of months for flowering.

Can't tell you how much I appreciate your reply, you have been the most help to me thus far. Others just keep telling me why it is a bad idea to have it in the cab, somehting I already know, but it will be necesary for now unfortunately.

**EDIT**

Had another look at your pics and I think I understand your setup better now. The end of your cooltube is still open inside your room. Here is my idea, connect ducting to the open end and have it connected to the outside of your cab. So the air is sucked from outside through your bulb and back out again. Then have another extractor sucking air from inside your cab and out. This way the heat from your light can't escape inside your cab, that should lower temps for sure I think.

Also a fan right across the plant blowing the hot air away from under the light, and lift the lights slightly, they are still small plants and you have a 600watt hps so they should still get plenty of light, all of this should help I think.
 

AllDayToker

Well-Known Member
This is interesting to me , very very interesting. Maybe I should just have the ballast inside the cab then. If my temps increase, then ad more extraction and airflow. Stealth is a big issue for me, I can't have my landlord looking at a ballast with wires running into a cab he will think WTF and ask me what that is. Imagine growing right under the nose of someone and getting away with it. That is my situation. It works fine with my CFL's I have it dialed nicely now. But I will need to add to a hps in a couple of months for flowering.

Can't tell you how much I appreciate your reply, you have been the most help to me thus far. Others just keep telling me why it is a bad idea to have it in the cab, somehting I already know, but it will be necesary for now unfortunately.

**EDIT**

Had another look at your pics and I think I understand your setup better now. The end of your cooltube is still open inside your room. Here is my idea, connect ducting to the open end and have it connected to the outside of your cab. So the air is sucked from outside through your bulb and back out again. Then have another extractor sucking air from inside your cab and out. This way the heat from your light can't escape inside your cab, that should lower temps for sure I think.

Also a fan right across the plant blowing the hot air away from under the light, and lift the lights slightly, they are still small plants and you have a 600watt hps so they should still get plenty of light, all of this should help I think.
Thanks for your input. I would do that if I could but if you read up on a couple previous post you'd know I don't have the ability to put an intake on the other side of my bulb. Honestly I think the ballast is fine in the grow room it's just your perfections will tell you a bunch of reasons why its bad. If you take the right precautions it'll be fine just but it doesn't affect the heat at all. Thanks for the good wishes, I'm hoping for the best as well.
 

AllDayToker

Well-Known Member
Well I put the temp gage right next to the pots, it's about maybe an inch under and it's reading 82. My buddy informed me that I could have had the sensor on my hygrometer right in the heat and that's why I it was reading such high temps. Either way if that was the case it's around 82-85 it seems like around the pots which is fine for me, but would prefer lower. My buddy also has a 42" tower fan that cools down my entire room so I'm thinking even if I put a small one in the cab that I will be able to get under the 80s no problem. Thanks to everyone following along and contributing, can't thank you all enough. The cannabis community just has too great of people.
 

SOMEBEECH

Well-Known Member
Subn up to the grow.I think you will be fine,By the time flower comes should start to cool down....Some!
Beech:mrgreen:
 

AllDayToker

Well-Known Member
Subn up to the grow.I think you will be fine,By the time flower comes should start to cool down....Some!
Beech:mrgreen:
Great! Yeah I think I'll be ok just some few first days freak outs. I just want my seedlings to freaking pop up so boring looking at dirt lol.
 

AllDayToker

Well-Known Member
Well after sitting around watching for my seeds to pop, still thinking about how to lower the temperature. I figured hey why do I have this tiny fan on the ground trying to cool down the light, so I raised it up and aimed it at the light, nothing. Then I thought, damn why am I so blind, I need to push the hot air from in between the light and the pots, so I straightened out the fan and BAM! 75-77f average. So at least that problem is solved for now, until the plants get too big, then I'll upgrade to one of the 3-4ft tower fans, they are super efficient. I have no fun pictures to post so I thought I would post what I just told you lol. And yes that is a 25 cent fan doing the job :lol:
 

youngsta

Active Member
Good shit. Glad to hear you got the temp issue under control. You should consider co2 for later in the grow to take advantage of the higher temps. Even just some sugar water and yeast in soda bottles next to your pots
 

AllDayToker

Well-Known Member
Good shit. Glad to hear you got the temp issue under control. You should consider co2 for later in the grow to take advantage of the higher temps. Even just some sugar water and yeast in soda bottles next to your pots
Yeah I'll have to see if there is a noticeable difference with the homemade yeast and sugar systems. I use to make some rigged for my planted aquariums so familiar with the process but in water.
 

TheDude0007

Active Member
Thanks for your input. I would do that if I could but if you read up on a couple previous post you'd know I don't have the ability to put an intake on the other side of my bulb. Honestly I think the ballast is fine in the grow room it's just your perfections will tell you a bunch of reasons why its bad. If you take the right precautions it'll be fine just but it doesn't affect the heat at all. Thanks for the good wishes, I'm hoping for the best as well.
I did read that you can only have the insake on one wall and not have it extrating to the other walls, but what if you extract it back to the the same wall you have the intake :-) but yes it could be a bit weird dealing with the ducting. :-)

Thanks for the advice re the ballast, it really makes me hopefull, that my setup could work. Good luck bro, I am going to follow your thread to see how you go with your grow. All the best.
 
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