My green house gets very hot and I have to open the doors to keep it from roasting the plants inside so I figured I needed vent fan in my green house so I got one and put it in this week end. I put a louvered vent cover on the out side where the fan vents and one intake vent in another spot. I put in an outlet plug and light at the same time and ran some water into it. The hard part was digging a ditch by hand to get the power and water to the green house. It took me the better part of 3 days to finish. Now all I need is a bigger green house.