Don't worry about heat you don't have enough with a 250. You can go 2 or 3 plants about 2 foot. DON'T TELL ANYONE. My brother busted on me cause mine were doing better. No cops envolved or I would have messed him up bad. But it put me back months. Now I'm coming back better than ever and the rat will never get to taste a dank bud of mine, so sad for family to do that. Keep your enemy close and friends closer. I worry about being ripped off more than anything. Check out my papaya in the hydro section, yum, yum.