Heating problem in grow tent 600w hps + 250w blue cfl

Hi guys,
on the pics below you will see i have a slight heating problem with my 45 days veggin plants (2x chrystal rain 1x unknown indica), the temperature in the room is 33C/92F degrees with the tent door half opened and with a 4" exhaust fan on max speed! My lamps are a 600w hps with an open reflector and 250w blue cfl. Any ideas how i can lower the temp,cause i need to keep the tent door closed so it isnt that obvious that I'm growing in the room(i know its not rly stealthy with the huge size of the tent, but ow well )? Maybe switching the hps off until flowering(which i will leave for last resort)?

Another thing, jugging by the size of the plants, how much longer would you recommend me to veg before switching to flow? I was thinking getting them another 15 days or so, any advice is welcomed

...you can try to exaust your heat from the very top of your room (heat raises). If that don't work, maybe look into getting an aircooled hood...or maybe a smaller light. I'd personally get an aircooled hood.

EDIT... I'd also spread that reflector open wider, and get a carbon filter.

I've put the fan exactly under the hps, because i can tell thats where most of the heat is concentrated, afterwards it goes to the duct and out from the top. An aircooled hood is not an option at the moment for money issues. Will there be any effect if i put a fan blowing towards the hps (pointing up in the center of the plants under the cfl?)

trichlone fiend said:

EDIT... I'd also spread that reflector open wider, and get a carbon filter.

Click to expand...

Yeah, totally blacked out on spreading the reflector thanks!
I have a carbon filter, but will w8 till flowering to put it, cause i think the carbon filter might influence the work of the fan by a bit, and with those temperature problems thats hard to do.
when would you recommend to start flower?

...well, depending on strain, they'll get 2-3 times the size they are at the time of trip'n them. So, that's your call. Good luck man.

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