I noticed in the pic with yellow top totes your light just has vent tubing on one side so do you just suck the hot air off the light? Way I have mine the inline fan or whatever you cal it not duct fan way bigger looks like jet engine anyway it pulls cool fresh air from outside which is blown across the light then vented out of my tent back outside via attic vent. But your able to keep light cool that way ha? Maybe sime you have much larger space it's better my smal 3x3x6 tent gets hot as fuxk even though it's on concrete in my garage. If I didn't cool the light it's probly catch fire
I've ran a 600w MH 24/7 for a couple months without air cooling and it didnt catch fire lol.
I dont have a fan on it currently. I need the heat it was winter. Even with the light going my room was low 70s. Which sets my vapor pressure deficit (VPD) about right with my 60% humidity.
But the plan is to cut a hole into the veg area and suck air from there, creating a negative pressure in the veg which sucks in air through a filter box in the veg room(not buiilt yet, lazy stoner i am) and that pumps into my basement to heat it up.
Then I have a carbon filter that sucks are from the flower room to the outside, air comes into the flower room through a filter box(not build yet, lazy stoner i am) so I jsut leave the door opened a crack.
But the plan is to have the flower room being able to be sealed and supplement CO2 in the summer when im using the AC to cool the room. Be a waste of AC to exhaust it. But I still need CO2. And the fan isnt enough to cool the room on its own, so I need AC.
I have an exterior door on each room.