Temp/Hum baseline

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Tom369

Member
Would 12hrs be long enough to give me a baseline for what the temperatures and humidities are like in my tent?
I turned in the the light and fan last night so I could see what I was dealing with so I can then see what I need to adjust etc before starting my grow but wasn’t sure how long was beat to leave it.
its been about 12hrs now but I don’t mind leaving it longer for a proper reading.
 
bernie344

bernie344

Well-Known Member
Tom369 said:
Would 12hrs be long enough to give me a baseline for what the temperatures and humidities are like in my tent?
I turned in the the light and fan last night so I could see what I was dealing with so I can then see what I need to adjust etc before starting my grow but wasn’t sure how long was beat to leave it.
its been about 12hrs now but I don’t mind leaving it longer for a proper reading.
Click to expand...
What reading you gonna do?
 
T

Tom369

Member
bernie344 said:
You got the seeds in?
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No. I just want to see what the readings are with the gear going before I put seeds in so everything is optimal.
Don’t want to put seeds in to realise I need something else, prefer to get everything that’s needed and then put the seeds in.
but I want to make sure that the gear has been running and air circulating for long enough before opening the tent back up and looking at the min/max readings
This way I should have an idea of the baseline conditions for my grow area for this time of year. I thought this would be a good idea to know?
 
bernie344

bernie344

Well-Known Member
Tom369 said:
No. I just want to see what the readings are with the gear going before I put seeds in so everything is optimal.
Don’t want to put seeds in to realise I need something else, prefer to get everything that’s needed and then put the seeds in.
but I want to make sure that the gear has been running and air circulating for long enough before opening the tent back up and looking at the min/max readings
Click to expand...
What else have you got ready?
 
WaxertheRadical

WaxertheRadical

Well-Known Member
Smart move. I would personally let it go for a full 24 hours at the very least so you can get a good picture of what 1 full cycle looks like. Day and night temp/rh swings a bit depending on where your space is located. If you are in an uninsulated attic/garage, you are definitely right to try to mitigate all environment issues now. If you are in a conditioned space, it really comes down to lighting. Or have i missed something?

What kind of light are you running btw?
 
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Tom369

Member
WaxertheRadical said:
Smart move. I would personally let it go for a full 24 hours at the very least so you can get a good picture of what 1 full cycle looks like. Day and night temp/rh swings a bit depending on where your space is located. If you are in an uninsulated attic/garage, you are definitely right to try to mitigate all environment issues now. If you are in a conditioned space, it really comes down to lighting. Or have i missed something?

What kind of light are you running btw?
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Cheers pal, ye 24 makes sense
ye it in an outside garage so want to see what the crack is beforehand. Il
I’ve got an 600w hps but only running it at 250 at min and then plan to up it through stages.
Will the humidity be effected at all when plants are in there or do they not effect the humidity??
 
WaxertheRadical

WaxertheRadical

Well-Known Member
Tom369 said:
Cheers pal, ye 24 makes sense
ye it in an outside garage so want to see what the crack is beforehand. Il
I’ve got an 600w hps but only running it at 250 at min and then plan to up it through stages.
Will the humidity be effected at all when plants are in there or do they not effect the humidity??
Click to expand...
No worries!

That 600w is going to be your lifesaver in this case. Are you planning on using the whole shed as your space or are you going to be running a tent inside the shed? (A space inside of a space so to speak.) I'll touch on that later.

Yes the humidity if going to change pretty drastically depending on medium, size of pots, ect but it is good to get a baseline to see just where your starting point is. For example, if i have a 3x3 space that typically runs 55% RH (without plants), I typically land around 60-70% without a dehumidifier and a fully occupied space. On the other-hand, if you have what you have and can't be asked to mess with the humidity right now, having a higher RH during veg usually proves to be more beneficial than detrimental. You should have plenty of time to play with the humidity and find a solution that fits your space. I recommend looking into Vapor Pressure Deficit (VPD) The charts are rather handy when it comes to knowing where your RH should be during different stages of growth.
 
T

Tom369

Member
WaxertheRadical said:
No worries!

That 600w is going to be your lifesaver in this case. Are you planning on using the whole shed as your space or are you going to be running a tent inside the shed? (A space inside of a space so to speak.) I'll touch on that later.

Yes the humidity if going to change pretty drastically depending on medium, size of pots, ect but it is good to get a baseline to see just where your starting point is. For example, if i have a 3x3 space that typically runs 55% RH (without plants), I typically land around 60-70% without a dehumidifier and a fully occupied space. On the other-hand, if you have what you have and can't be asked to mess with the humidity right now, having a higher RH during veg usually proves to be more beneficial than detrimental. You should have plenty of time to play with the humidity and find a solution that fits your space. I recommend looking into Vapor Pressure Deficit (VPD) The charts are rather handy when it comes to knowing where your RH should be during different stages of growth.
Click to expand...
Yes I’ve got a 4x4 tent within the garage.
Yes it’s been pretty high here lately. Around high 80’s but obvs need to check the actual tent readings later but I’m guessing I will need to figure out quite ways to dehumidify
 
WaxertheRadical

WaxertheRadical

Well-Known Member
Tom369 said:
Yes I’ve got a 4x4 tent within the garage.
Yes it’s been pretty high here lately. Around high 80’s but obvs need to check the actual tent readings later but I’m guessing I will need to figure out quite ways to dehumidify
Click to expand...
Nice! Well if your temps get too high, you can always make a hole through the wall and vent to atmosphere outside so the heat isn't staying inside the garage, thus pulling in fresh cool air from your space instead.

As for quiet ways of dehumidification, there are things that are like one time use dehumidifiers that are pretty handy but that won't remedy any sort of big humidity swings.

Hope that helps!
 
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