I just started flowering today on my 2 plants. They are about 2 feet under my 250W HPS in a 8'-5'-8' grow room. The only ventilation i have is a cracked door and as of now i have one fan blowing directly at the HPS. Probably 30% humidity and 70-75 degrees. My question is: Will one fan do the trick or will it still get too hot? Its a pretty big room right? Also, is 2 feet a good distance to keep the HPS away from the plants?

bumpin it up

Depends on whats happening. If what you have now is keeping it in the low 70's then stick with it. Just make sure you have an oscilating fan moving the air and the door always cracked. If temps spike, I'd get atleast a 250 cfm exhaust.

And P.S., I kept my 400w HPS about a foot away from my 1 month olds, so I'd lower atleast a bit.

I meant it was in the 70s before i set up the HPS, i havent checked the temp since i just set it up today