oh been growing for some years. maybe like 8 or so. maybe more. forgot when i started. i started when my packs use to go for 4400 a lb. lol. but yeah. just havent ran into this problem before. the timer thing just slipped my mind. and i didnt bother to check untill it was too late. but yeah. ive dealth with insulated ducting before. i might think about getting the plastic coating in the ductingg but not the full on sleeved with foam or fiberglass ones, cuz i've dealth with those before, and it was a pain in the ass to put up and take down. it does help i agree, but with my fans with intake and outake, the temps are fine. sometimes it gets reallly cold in there. but yeah. have 10k watts in total.