If you had to choose. High temp or high humidity?

Would you rather have high humidity or high temp?

  • High temp

    Votes: 4 50.0%

  • High humidity

    Votes: 4 50.0%
  • Total voters
    8
stickyfly

stickyfly

Well-Known Member
So yea, it appears that my humidity rises to mid 70% when lights and fans are off during dark cycle. Im trying to keep everything off during dark so that it is silent. I have dark hours set during the day for temp and visitors. My temps are 77 during lights on and 70 with lights off. I have an evap cooler which is bringing my humidity up, and that is producing moisture regardless of whether it is on or not. I flipped to 12/12 8 days ago and I dont want to have any bud rot issues when things really get going. My question is...do I remove the evap cooler and run 2-3 degrees hotter? I was hoping to turn up my light a bit as well as I dimmed it about 30% in veg. If I do I think I will be running 80-82 with lights on. So...would you rather have high humidity or high temp?
 
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natureboygrower

natureboygrower

Well-Known Member
i'd personally want higher heat but i'm growing with cobs which higher heat is beneficial.i'm around the 80-81° mark.Man,bud rot sucks.It's the main reason i moved my grow indoors.i've read with enough air movement high humidity is possible,but F that.i'm sitting at 35% lights on,40% lights off.i'd lose the evap if you're ok with that.
 
BigHornBuds

BigHornBuds

Well-Known Member
if you want to grow something to be proud of, you need to be able to control all of the environment. Not one or the other.
Your probably wasting your $ until u can provide what they want.

You need to have a Dehumitifer in there for lights off or you need air circulation of fresh air to drop it.

Search stealth exhaust fan .
Buy a big fan , run on very low, used a exhaust for it, build a box , you can hide sounds, hard to hide a bunch of moldy bud , or airy loose bud .
 
natureboygrower

natureboygrower

Well-Known Member
stickyfly said:
I have an HLG 100W quantum board in my cab. Not sure what the recommended temps for this light would be, I didnt know it depended on type of light. 1st grow so Im a total noob.
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you should be fine with a little higher heat.
i agree with BHB though,you need to get that humidity lower.how much does it drop at night with the evap shut off?
 
stickyfly

stickyfly

Well-Known Member
The evap is only on when the lights are on and stays at about 54% but the paper blades inside the cooler which absorb the water dont stop absorbing when it is off with lights off. That is when the humidity rises. I think I will try removing that paper blades from the evap cooler and just let it be a circulation fan. Thanks for the input guys, much appreciated and I definitely want to make conditions as perfect as possible to get something I can be proud to smoke :)
 
BigHornBuds

BigHornBuds

Well-Known Member
Why not have an exhaust fan in the box and on a power bar , when your alone business as usual, if you get a pop in , hit the off switch back to stealth mode till they leave , then carry on.

I have 2 veg rooms on there own breaker
If I have someone coming over , I hit the breaker .
Even my best friends don’t get to see behind closed doors , “my buddy grows for me” even tho I’d like the credit of all the happy people , “ya he can grow some good smoke”
 
BigHornBuds

BigHornBuds

Well-Known Member
stickyfly said:
The evap is only on when the lights are on and stays at about 54% but the paper blades inside the cooler which absorb the water dont stop absorbing when it is off with lights off. That is when the humidity rises. I think I will try removing that paper blades from the evap cooler and just let it be a circulation fan. Thanks for the input guys, much appreciated and I definitely want to make conditions as perfect as possible to get something I can be proud to smoke :)
Click to expand...
Your humidity spike has nothing to do with the evap. It’s all physics and the development of weather .
 
stickyfly

stickyfly

Well-Known Member
BigHornBuds said:
Why not have an exhaust fan in the box and on a power bar , when your alone business as usual, if you get a pop in , hit the off switch back to stealth mode till they leave , then carry on.

I have 2 veg rooms on there own breaker
If I have someone coming over , I hit the breaker .
Even my best friends don’t get to see behind closed doors , “my buddy grows for me” even tho I’d like the credit of all the happy people , “ya he can grow some good smoke”
Click to expand...
I have the whole cab on a Wemo wireless outlet which I control with my phone and is controlling my schedule. I think I will buy a 2nd outlet and put my light on one and the whole cab on the other so I can keep fans on while lights are off but have the ability to kill the whole box remotely if needed. This is of course if removing the paper blades from my cooler will not suffice.
 
stickyfly

stickyfly

Well-Known Member
BigHornBuds said:
Your humidity spike has nothing to do with the evap. It’s all physics and the development of weather .
Click to expand...
I will test your theory. My cab is very small so the weather inside is very sensitive to minor changes. Im early enough in my flip to play a bit with the setup.
 
BigHornBuds

BigHornBuds

Well-Known Member
My room will hit 100% humidity when the lights go out. All sealed spaces will.

I would monitor the humidity in your room and use that to make an equilibrium with the cab . Should be ok with the given sizes of both.

Also water at 1st light , and only give enough to last 24hrs , this will help a little , but will not fix anything.
 
GroErr

GroErr

Well-Known Member
Neither, you need to control both or suffer in one area or another. In your case running a small dehumidifier with a built-in humidistat, run it on a timer to run only during lights out. your temps are good, if you can control the RH during lights out you'd have an almost ideal environment.
 
ThatSpudGuy

ThatSpudGuy

Well-Known Member
Ive been reaching 99% humidity when my lights go out. Have never ran into mold issues. But i think its been the cause of my last 4 runs throwing out nanners. I would get both under control
 
since1991

since1991

Well-Known Member
Wow. You guys that have massive humidity spikes at lights out need to get that under control. You might not see any issues but its not good for the plant..at all. And your end product is nowhere near what it could be. 100% rh at lights out? Damn. You all need to invest in the proper equipment to control the environment. Exhaust and intake blowers..Heaters... Ac's...dehueys...some may actually need humidifiers - especially in veg and depending on where you live. But one or all of these you need to set up to get your temperatures and relative humidity levels in the sweet spot lights on and off for maximum plant health. Yeah..its that important. Just as important as the light itself and the strains your growing. And once you wrestle the environment/climate and are able to control it with precision..you open up a whole new way of really controlling how plants can grow indoors. For many years I didnt pay alot of attention to temps and rh. Once I did and invested in the equipment to control it...changed up my entire operation for the better. Temps and humidity is EVERYTHING for me nowadays.
 
BigHornBuds

BigHornBuds

Well-Known Member
since1991 said:
Wow. You guys that have massive humidity spikes at lights out need to get that under control. You might not see any issues but its not good for the plant..at all. And your end product is nowhere near what it could be. 100% rh at lights out? Damn. You all need to invest in the proper equipment to control the environment. Exhaust and intake blowers..Heaters... Ac's...dehueys...some may actually need humidifiers - especially in veg and depending on where you live. But one or all of these you need to set up to get your temperatures and relative humidity levels in the sweet spot lights on and off for maximum plant health. Yeah..its that important. Just as important as the light itself and the strains your growing. And once you wrestle the environment/climate and are able to control it with precision..you open up a whole new way of really controlling how plants can grow indoors. For many years I didnt pay alot of attention to temps and rh. Once I did and invested in the equipment to control it...changed up my entire operation for the better. Temps and humidity is EVERYTHING for me nowadays.
Click to expand...

My post should read
My room would hit 100% if I didn’t have the proper controls in place.
I’m running a sealed room , with 3.5ton mini, Quest dual 105 Dehumitifer, CO2 etc.
Everything stays Right where I want it .
 
since1991

since1991

Well-Known Member
BigHornBuds said:
My post should read
My room would hit 100% if I didn’t have the proper controls in place.
I’m running a sealed room , with 3.5ton mini, Quest dual 105 Dehumitifer, CO2 etc.
Everything stays Right where I want it .
Click to expand...
Our rooms are similar. Sante Fe Classic dehuey here (I would have gotten a Quest 110 if they were out on the market then) and a Mitsubishi Mr. Slim mini split. Sealed is the only way to grow for real rooms in my opinion.
 
BigHornBuds

BigHornBuds

Well-Known Member
since1991 said:
Our rooms are similar. Sante Fe Classic dehuey here (I would have gotten a Quest 110 if they were out on the market then) and a Mitsubishi Mr. Slim mini split. Sealed is the only way to grow for real rooms in my opinion.
Click to expand...
I’m very happy with the 105.
I cheaped out on the mini to get going , and I’m scared everyday it’s going to pop, & I’ll b fucked. I think next winter I’m going to buy a Mitsubishi n just have it ready n waiting .
Just can’t justify the cost atm to have it sitting there, to big to hide from the wife.
 
since1991

since1991

Well-Known Member
BigHornBuds said:
I’m very happy with the 105.
I cheaped out on the mini to get going , and I’m scared everyday it’s going to pop, & I’ll b fucked. I think next winter I’m going to buy a Mitsubishi n just have it ready n waiting .
Just can’t justify the cost atm to have it sitting there, to big to hide from the wife.
Click to expand...
Shit isnt cheap is it? To do it right and build a proper sealed and precision controlled grow room is pricey.
 
BigHornBuds

BigHornBuds

Well-Known Member
since1991 said:
Shit isnt cheap is it? To do it right and build a proper sealed and precision controlled grow room is pricey.
Click to expand...
To do it right it is not cheap. And my mini wasn’t cheap, just not a Mitsubishi
Every time I try n cheap out it bites me in the ass. I have a love for high end gear.
It gives piece of mind , usually last 10x longer, then cheap gear , &it always leaves you wanting and you upgrade down the road anyway,
Buy once cry once.
Repeatedly buying junk costs more in the end, and the learning curve it a lot steeper .
 
stickyfly

stickyfly

Well-Known Member
Alright alright, I ran the box with everything except water in the cooler and humidity dropped to high 40% over night but temps went up to 81F high. Soooo I caved and decided to let all of the ventilation run and only the light goes off during dark hours. Had to run on an overnight trip so I wont get to check my stats till tomorrow night but I think I should be able to hold. Im curious how far the humidity would have dropped had I let it keep running with no water. Time will tell if I need a mini dehumidifier. Only thing about a dehumidifier is that it produces warm air which is defeating the purpose of the evap cooler. However i didnt know my evap cooler was dropping my box by a total of 4F, impressed for the tiny size.
 
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