What room do you grow in, if u don't mind me asking? And have you ever tried to grow sativa's in your space during the winter?I have some insulation on top of my tent and I intend on getting more for this winter, whatever heat I generate I want kept in the tent so my exhaust goes on low as does my intake. I'm good overnight so my heaters go off and they drop to around 65-66f at the coldest times of the year but warm up quickly as the lights and heat come on. I get the best colors out of my plants in the winter.