Heat issues

I got a tent set up, I believe 5' x 5' and 7' tall, 400w HPS and 400w MH side by side, it's getting pretty hot in there, I got some pretty hardcore 8" intake and outtake fans set up on full power and the air is getting blown directly outside the house, I have a generic oscillating fan set up spinning back and forth inside the tent as well, just wondering if adding more oscillating fans would make much of a difference in terms of heat, or is one of them enough?

Try leaving the tent open if that is an option along with the oscillating fans , or look into portable A/C you can pick some up for very cheap from Craigslist or Goodwill . They should also get the humidity down .

Is your thermometer under the light - if so its in the wrong place. Outside your tent will be pretty similar to inside with inline fans so control that rather than your tent.

I cannot stress enough that most have zero ide where a thermometer should be placed and convection conduction and radiation

Open your tent and put a fan on them from the outside

Kingrow1 said:

Is your thermometer under the light - if so its in the wrong place. Outside your tent will be pretty similar to inside with inline fans so control that rather than your tent.

I cannot stress enough that most have zero ide where a thermometer should be placed and convection conduction and radiation

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I heard the thermometer should be placed at canopy level? Is that not true?

Hymselph said:

I heard the thermometer should be placed at canopy level? Is that not true?

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Light is radiation - it passes unhindered through air without warming it but whatever surface it strikes it warms.

Air temps are not read by placing a thermometer in the light and the peeps who wrote what you read did not give basic scientific fact to allow you to understand the difference between conduction convection and radiation.

For this very same exact scientific reason thermometers are shaded from all indirect and direct light - the met office use a stevenson screen, mere mortals place thermometers indoors in shaded locations, nasa reports space at almost absolute zero yet the sums rays do a shit job of changing that.

Once you work out your real air temps and turn down that wind tunnel youve created growing gets a ton easier just leaving you to focus on watering and fertilizing

I'm still wondering how hot "pretty hot" is. You say you have an intake and an exhaust fan, do you need the intake fan, what about using that fan with air-cooled reflectors and the exhaust fan with carbon filter for smell.