These calculations are easy but the depend on a number of variable. See the fan link in my signature.
bigsby Reviewed by bigsby on . Some Questions about my newest project. OK, so I'm looking at working with a grow room that measures 8ft x 14ft or 112 ft. sq. Hypothetically, with 32-36 girls in it. So, according to posts I've read, some people use a 50w per square foot ratio for HID lights, and some use a 62w per square foot ratio. By these two numbers that's 5600-6944w of HID lights. Does this sound reasonable? Accurate? Could I get away with less without greatly reducing yield? Moving on to airflow and odor control. The plan is to buy a large air purifier, Rating: 5