Night temp higher than day temp.

JustBlazin

JustBlazin

Well-Known Member
Had to put my dehumidifier in my tent for lights out as humidity was getting to 70%+ ,
Now my night temperature are 83 - 84 and my day temperature are anywhere from 79-84.
Anyone know if this a problem?
 
Bukvičák

Bukvičák

Well-Known Member
JustBlazin said:
Had to put my dehumidifier in my tent for lights out as humidity was getting to 70%+ ,
Now my night temperature are 83 - 84 and my day temperature are anywhere from 79-84.
Anyone know if this a problem?
Click to expand...
What is your target RH you set on dehu? With 28 degrees everthing below 50% RH is already stress to the plant (high VPD)…
 
JustBlazin

JustBlazin

Well-Known Member
Its set to 40% now. Might switch it tonight to 50%.
My dehumidifier keeps shutting down
I was reading on the pulse forums the guys who made the pulse where saying the VPD doesn't matter much at night.
community.pulsegrow.com

VPD night settings

Is there a way to incorporate VPD for night; (lights off) so there will be two VPD settings for day and night
community.pulsegrow.com community.pulsegrow.com
 
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Bukvičák

Bukvičák

Well-Known Member
JustBlazin said:
About 4 weeks, trying to get my night humidity in check before they start to get dense
Click to expand...
I am on the same boat. Portable AC did wonder set on auto 22C/50% consumed less than dehu. Later in flower I do not care about shit and dehu is running the lowest during lights off.
 
Bukvičák

Bukvičák

Well-Known Member
JustBlazin said:
So you guys don't think the temp being the same or higher in lights out compared to lights on?
Click to expand...
IMo you should stay at least the same or better lower ofc. It is about transpiration, with high VPD stomata can close does not matter if it is day or night. Dehu alone can not keep temp and Rh in check, it is either lower rh with higher temp or without dehu… or Ac
 
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