Heat issue in flower room

Shadytrees88

Active Member
I'm running two 1k watt lights in a 7foot

By 8foot 6.5 foot tall grow room in basement I have two inline fans one push air thru the lights and one pulling air out of the room , both fans r 6inch and r connected together with a y pipe before they leave window , the light fan runs wide open , the exhaust fan I have cut back to bout half speed cause the run is like 2 foot

My basement temps r 72 but

My flower room is gettin 91 degrees .. I have had the fan running threw the lights pulling basement air and also pulling the room air with no change , I've turned the main exhaust fan down to allow more air to be pulled thru the lights cause it seems as if the fan connected to the lights slows since I have that y pipe connecting the two .. attached at drawing of the layout ,

Temps r 89 to 91 lights on

Temps at lights off r 79 even above the basement temps which I do have a dehumidifier running exhausting in the flower room .

Humidity is 45 to 55 percent


My veg room is 4x7

With a 600w one inline fan and a oscillating fan and them temps never get above 75

So since the two inline fans r connected together before they leave the room causing some restrictions and allowing heat to build up ..

I no that the dehumidifier is raising it a couple degrees , the dehum isn't running with lights on mayb right at lights on , it mainly runs at night hours , cause when the lights r off both my inline fans shut off for 3 hours then on for a hour then off for a hour , the oscillating fans still run constant . I know the fans r working atleast somewhat bc the humidity drops to 35 to 40 percent at lights on and at night it goes up to 50 to 55 were the dehumidifier is set .. i got one 6inch inlet with a small 6 inch like ac duct fan pulling air in the room , the basement is 68 to 72 degrees right now and the temps r 84 in the grow room , if the temps rise in the basement then the flower room temps go up even before I added that new inlet , my room is insulated with r19 on the walls the basement walls concrete with fan fold over that and orca film, the floors r 2 inch foam with wood on top , so my room is insulted , I think the issue is the two fans being hooked together but even then it should be keeping the temps down at whatever the temp is outside the grow
 

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Creature1969

Well-Known Member
Try removing the inline fan and turn the exhaust fan on high. Could shave 5 degrees right there. If it doesn't, next I'd try moving the inline between the lights in a push/pull type o' deal with the exhaust fan running faster than the inline..

It's more efficient to pull the air for heat removal.
 

Diabolical666

Well-Known Member
Veg wouldnt mind some extra heat..i would run the light ducting straight across to the 600 and then out..more intake too may be needed. Dont worry its always shifting fans around to make it work
 
91 is really hot. It will cause stretch and fluff. I would incorporate co2. Shut off theb exhaust you can get down to 85 which is perfectly fine as long as you have co2. Some people have been running high and low systems of exhaust where they run everything hot and exhaust every couple of hours. Apparently they have been killing it with yeild
 
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