rhetorrikz
Well-Known Member
Maybe the fan itself is also creating heat from pulling air through the smallish air intake it may be working to hard?
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Air intake ? Is it drawing enough cooler air from the lowest point in the cab creating a draw through effect?
That's exactly what your problem is. An 8" inch filter needs to be used with an 8" fan and preferably with 8" ducting. A 4" inch fan might be enough for your room, but the 8" filter is what's throwing off your output abilities, which is probably making it so the passive intake isn't really working properly. If the box is closed and the scrubber fan is on, can you feel air being sucked into the room through the passive intake hole?
Is this over or under watered