Roger A. Shrubber
Well-Known Member
I have a 400 watt hps in a 28 x 36 x54 cab, vented by a 4 inch 190 cfm fan that runs at about 80% during lights on, with passive intake.When the doors shut it gets to 82, with the door open its 78-79, drawing in the 72-74 degree air in my house. if my 4 inch fan can keep that small a space under 82, something aint right with your setup.
i guess the big difference is that i'm using a hood with the glass in it. i'm lucky enough that i don't need to use a filter, my fan vents onto a hillside behind my house with no neighboors.
use the glass.
if you want the UV, get a tanning lamp, or reptile lamp. usually 10% of your output in uv is enough to effect potency, so you'd only need 30 watts or so of UVB. they do run warm, but not nearly warm enough to equal having the glass out of your hood.
i guess the big difference is that i'm using a hood with the glass in it. i'm lucky enough that i don't need to use a filter, my fan vents onto a hillside behind my house with no neighboors.
use the glass.
if you want the UV, get a tanning lamp, or reptile lamp. usually 10% of your output in uv is enough to effect potency, so you'd only need 30 watts or so of UVB. they do run warm, but not nearly warm enough to equal having the glass out of your hood.