no pics no care
I live in the UK and outside temp is currently -1C I still have to use a big inline fan to cool my lighting rig and I use a 600w.
With 1200-2000w you will need serious fan power.
You need to make a decision on how much you want to harvest in 1 grow. If it is 2lbs, which room in your house are you gonna convert into a grow room.
Then you need to read about air exchange, temps, nutrient requirements.
J