What is your average temperature when your lights are on? (VOTE THIS POLL!!)

Whats your average temperature with lights on?

  • 70-75

    Votes: 15 14.7%
  • 75-80

    Votes: 40 39.2%
  • 80-85

    Votes: 29 28.4%
  • 85-90

    Votes: 13 12.7%
  • 90-95

    Votes: 3 2.9%
  • 95-100

    Votes: 1 1.0%
  • No response.

    Votes: 1 1.0%

  • Total voters
    102

community

Active Member
Ok, this is a repost from yesterday, I made a mistake in the last poll.

I am trying to research and see what is the average temperature you guys grow at. So take a second and vote on this poll: What is your average temperature when your lights are on?

I know many of grow spaces are poorly vented and this can effect yields.

So how hot is too hot? At what temperature do you guys notice a decrease in yields?

 

malbulja

Well-Known Member
Ok, this is a repost from yesterday, I made a mistake in the last poll.

I am trying to research and see what is the average temperature you guys grow at. So take a second and vote on this poll: What is your average temperature when your lights are on?

I know many of grow spaces are poorly vented and this can effect yields.

So how hot is too hot? At what temperature do you guys notice a decrease in yields?

The general rule is 70-80 during light cycles and 60-70 during dark cycles. If you have CO2 supplementation then 80-90 is fine for the light cycle. I don't have CO2 and I'm using CFLs and I'm struggling to keep my temps below 80F.

I've read from several sources that 85+F is the critical upper bound for effecting yield without CO2
 

mixin

Well-Known Member
85-90 here until i get my digital ballast and cooltube fully functioning. can't wait to get the temps near 80
 

beastinit702

Well-Known Member
I got my 1000 watter with air cooled hood and nights its around 79 to 80 and during the day it can hit 83 to 84. Which I feel is fine since the damn light is so big and puts out hella light for my babies.
 

Greyskull

Well-Known Member
70-75f, 45-50rh lights on
65-70, 45-50rh lights off

i haven't experienced yeild loss because i don't have temps in the 85-90 range...

if I was rocking my CO2 like I should be (to lazy o set up my halos and turn the tank on if you believe that!) temps can be a bit higher (75-80f)...

I have 3 temp/hygrometers per room, each in different places so I can see the whole room is happy/.
 

beastinit702

Well-Known Member
i voted 85-90 but it might be more like a 100 sometimes but i cant really tell with out a thermometer
Damn bro I would get a thermometer if I were u. I know when I got mine it helped alot. Some times temps won't feel hot but then i check my meter and the shit says 85 or 90.
 

GrowinBigRed

Active Member
Ok heres my situation,
I have one 600w MH bulb for Veg stage and HPS for flowering, both create C02 emmisons when on. Now since my reflector is a Euro inline cooler it has a clear sheet of flexiglas(i think) between light and Plant, so i can get the light close, with 2 inline holes for a cooler fan or tubing either way.
Im putting a fan on one side and haveing it vent out all the heat and Co2, then i take a small little house fan and blow it back at plant with plant on a circular rotator. so it absorbs the Co2 but doesnt get much heat since that is reduced from the small house fan....

Is this Effective??
 

community

Active Member
Same here, but I find its better to cool the cab and the intake for the fan is hook through the euro 6. Bring in fresh air to the cab, hot air brought through the euro 6, in the fan, out the fan, into a carbon filter.
 
My room temp is in the low 70's usually 72-74. Canopy temp is about 80-82( all these are F). Can anyone tell me what temps are ideal?

BTW me night(lites off) temp is around 65.
 
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