Closet CFL grow over heating... vent suggestions?

poorcrippledkid

poorcrippledkid

Active Member
I am starting my first grow, and so far I have been messing things up! I did not plan well enough for ventilation, and now one of my sprouts are dead, and the other one does not look well at all. I have more BID BUD seeds so I am not too concerned about losing them, but I need to fix this problem. Here is my setup - https://www.rollitup.org/indoor-growing/159381-1st-time-growing-indoors-suggestions.html

In a nut shell, I am growing in a closet with 4 55 (actual) watt bulbs. I have 2 hydroponic DWC plants going with seeds already sprouting. I only have a big sized fan blowing upwards to circulate the are in the closet, while I open the door multiple times a day to replenish C02. I recently measured the temp next to the sprout and it was 105 degrees!

The closet I am in does not have any vents, and its in the basement so I cant vent from ceiling. I am having this grow be very secretive, so I don't want anything sticking out the crack of the door.

I was thinking about getting a CPU fan hooked up, and hook that to a funnel (so it takes in air through the funnel), and then have a tube that sticks in between the door crack, taking in hallway air. Think this would work? Any other suggestions or advice to help me out? THANKS!



 
Ramona's

Ramona's

Well-Known Member
a closet setup thats closed for most of the day with a 250w metal halide, flouro's and 220w high pressure sodium.... temps can be kept at 73 degrees. keep a fan pointed at the plants and another facing up towards the lights....heat rises. it can be pushed up.
 
Stoney McFried

Stoney McFried

Well-Known Member
I haven't tried this yet, but I was planning on doing it, because I can't drill holes in my walls either.Maybe it would help you.
http://www.youtube.com/watch?v=_PwplxoJSDw
poorcrippledkid said:
I am starting my first grow, and so far I have been messing things up! I did not plan well enough for ventilation, and now one of my sprouts are dead, and the other one does not look well at all. I have more BID BUD seeds so I am not too concerned about losing them, but I need to fix this problem. Here is my setup - https://www.rollitup.org/indoor-growing/159381-1st-time-growing-indoors-suggestions.html

In a nut shell, I am growing in a closet with 4 55 (actual) watt bulbs. I have 2 hydroponic DWC plants going with seeds already sprouting. I only have a big sized fan blowing upwards to circulate the are in the closet, while I open the door multiple times a day to replenish C02. I recently measured the temp next to the sprout and it was 105 degrees!

The closet I am in does not have any vents, and its in the basement so I cant vent from ceiling. I am having this grow be very secretive, so I don't want anything sticking out the crack of the door.

I was thinking about getting a CPU fan hooked up, and hook that to a funnel (so it takes in air through the funnel), and then have a tube that sticks in between the door crack, taking in hallway air. Think this would work? Any other suggestions or advice to help me out? THANKS!



Click to expand...
 
D

defeatedtea

Well-Known Member
this seems easy, I'm going to have to find a fan and get some copper tubing. Where do I get the styrofoam jug thing tho. walmart?
 
poorcrippledkid

poorcrippledkid

Active Member
Thanks for all the advice! I hooked up two fans in there, one blowing on the plants, and then one blowing the air up top. I hope this is working, cause I might just be able to save my sprout so I wont have to regerminate that one. That home made air conditioner I think just might be a little to much/big to but in my really crowded closet. Thanks again for taking a look! I am going to wait some hours and see how the temp is, and update with the results!
 
poorcrippledkid

poorcrippledkid

Active Member
I just checked the temperature, and I got it to a constant 90 Degrees. Is this too hot still? 105 degrees to 90 is quite an improvement, but still seems high. Here are the fans I added...



 
GlassFreak

GlassFreak

Well-Known Member
i dont understand all these people having problems with temps using cfl lighting, i had 200w in my closet and it was never ever a problem, i could have the lights an inch from the plants. now i have a 400w mh in there, it gets up to 100 if its all closed up and no fans are going, but i always have a fan near the openin of the closet and on the floor to blow cooler air up to the plants.

as long as you have a fan going over the top of your plants they should be fine, maybe get one that can just stay on the lights and it will take care of it.
 
GlassFreak

GlassFreak

Well-Known Member
also i try to keep the door open a few inches at least if not all the way durring the day, close it all the way when its dark.
 
Stoney McFried

Stoney McFried

Well-Known Member
I had problems with heat with cfl's,even with a fan.Some folks can't keep their door open because of kids,pets,etc.Must be bad room syndrome,lol.
 
poorcrippledkid

poorcrippledkid

Active Member
Ha ha yea. I guess I'll have to try to keep the door open. I want this grow to be discreet as possible, so I guess I'll have to stop inviting buddys over to toke everyday :-( I guess its the sacrifice us growers have to make!
 
TeaTreeOil

TeaTreeOil

Well-Known Member
Cheap CFLs have cheap ballasts/phosphors and generate more heat. I got these K-Lite(bought uhm at the grocery store) brand bulbs. Absolute shit. Way too hot, and around half the plant growth(seedlings->3 weeks). Switched them out for GE Daylights and they're much more vigorous now.

Walmart has tons of them(GE) for cheap.
 
poorcrippledkid

poorcrippledkid

Active Member
Yea thats what I think is wrong, I think the CFL lights I got have cheap ballasts. They output much more heat that I anticipated. I just need to find some good VEG CFLs that are 55 (actual) watt or higher, or make due with what I have until I get my flowering lights (found some 65 actual watt ones at Lowes that are GE brand)
 
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