mh/HPS reflector

greets gang,

I do not have a way to duct my exhaust outside or in an attic. what kind of reflector should i buy for a 600w?

If you can't get the heat out and fresh air in I think ur gunna be up shit creek without a paddle unless you use a tent or something. Heat will probably be more of an issue than you think. It was with my grow and I had to redo my ventilation after I got my lights set up cuz it wasn't good enough.

A Cheap hood will get it done if you don't want run ducting for cool tube. If you use a tent you definitely want a cool tube of some sort.

im in a basement grow with ambient temp/rh of 73* and 45% (lower in winter (about 30-35%). I do NOT have any fresh air coming in from the outside, nor do I exhaust any basement air outside. I do run an 8000btu portable ac unit in my flower room. I do have the exhaust from the ac ducting outside. im on my 3rd cycle/flip/harvest and everything is spot on. my flower room temps are 70-73* when lights on and 73* lights off. veg room is about 80*. both tents use a 600w xxxl cool tube hood, each with a 440cfm 6" fan for cooling the hoods. check out my grow journal link for all my setup and grow info if you like.

i have access to an attic but its a rental and i would have to just fix the hole in the ceiling. now for fresh intake im screwed. A hole on the outside of my house would be noticeable. i could make a hole for a fan behind my fridge above the fridge exhaust.. they share one wall

if i can duct the hot air from a cool tube to the ceiling would that be enough to lower temps?

so fan,duct,cool tube,duct,flange to hole sound about right? what cfm should i get for intake? has to be super quiet.?


thank you for the different questions i ask. dont wanna clog up the site with small questions.