I re- read your first post and it cleared a couple things up for me. What makes your pinkish lights better? Do they cost more or do they have a broader spectrum? Personally i'd add a couple cfl's to the flowering room if the budgets not too tight :thumbsup: . You doing dwc? It appears we might have another thing in common haha. I know this post was about heating, but hey :rastasmoke: cant help it if im interested! Did you do anything about ventilation or a carbon filter?