Growing in winter- winter temps!!

If you're willing to pay for heaters, you might as well pay for more lighting. You'll get heat with enough light, trust me

I've heard and read that 1000 watts is plenty for a 4 X4 area for flower ( 16 plants ), I thought doing 2000 watts would sort of be overkill. I've also heard that the more light the better no matter what Jorge Cervantes says and some people like yourself will usually only put 4 plants max under one 1000 watt. It's surprising to me that no one encounters cold issues during the winter, it could be killing my yield!

I was thinking about making plastic walls to make the space a little smaller, but I don't think that will retain heat. I can't run more light and thought 3000 would be plenty to pull maybe a lb which is terrible but hey its all I need. Purple urkle is also really slow growing and low yielding but my favorite so it is possible with the cold I get as little as a half lb, that would be terrible at half oz a plant.

go with 4000w.