Control heat in smaller tent

TreeFarmerCharlie said:

If you are using a fan as an intake, and it causes your tent to balloon out, then your exhaust fan isn’t pulling enough air. Most growers don’t bother with intake fans, we just use a suitably sized exhaust fan and open up ports at the bottom of the tent to use as passive intakes.

Click to expand...

The vent intake that i connected the ducting to was way more powerful then my exhaust fan inside. The fan I have inside the tent is a 4" 110cfm.
The vent was blowing almost twice as much as my exhaust
I'll have to measure the airflow in that vent and then buy a stronger exhaust if I'm gonna use it as an active intake.

Maybe I'll just move everything downstairs and fix something to block the lights from my window when I open the tent.
Too much hassle up on the loft.

coreywebster said:

1 shade your thermometer from direct light.
2 make sure your air is well mixed with a circulation fan.

That's should give you a more accurate air temp reading.

Click to expand...

Now it reads 26,5C just above the light line in the shade, I will need better circulation tough.
I was thinking about shading it when I first measured but I thought you needed to measure under the light since it's where your plants are.
My initial thought was that you measure it the same way that you do outside, in the shade.

carecrab1 said:

Now it reads 26,5C just above the light line in the shade, I will need better circulation tough.
I was thinking about shading it when I first measured but I thought you needed to measure under the light since it's where your plants are.
My initial thought was that you measure it the same way that you do outside, in the shade.

Click to expand...

If you want to get technical, the optimal temperature reading would be taken from the surface of the top leaves with an IR thermometer. Most growers just put a temperature sensor at canopy level to get a close reading.

TreeFarmerCharlie said:

If you want to get technical, the optimal temperature reading would be taken from the surface of the top leaves with an IR thermometer. Most growers just put a temperature sensor at canopy level to get a close reading.

Click to expand...

I'll have to get one of those as soon as I start growing. I've been testing everything now so I know what the temps are, if it's to hot/cold and what not.
I don't want to start growing before I know that everything is under control.