250watt hps in shed

how much heat am i going to have to deal with using a 250watt hps in a typical garden wooden shed, will i have a lot of heat being created by this and what are the chances of it being lit up on a helicopter. i have to use the shed so there is no other alternative i just need answers people

I am running a 250 HPS in a 3'x1.5'X6' homemade setup right now and heat is not a huge issue. I do have a 4" inlet fan and an exhaust blower but that is mostly for keeping humidity down due to running an aeroponic system that I felt might drive the humidity way up. Light is a little bit older so I imagine newer light may even generate less heat but not sure. As long as any windows on the shed are covered up I can't imagine you would draw a ton of attention relative to a heat footprint with such a small light. Probably going to have to set up some kind of reflective surfaces around plant to get max amount of light, don't want to waste it. I have the whole setup completely wrapped in mylar and the plants are growing like crazy, they love the light. Hope this helps and good luck.

i shall be placing a tent inside the shed and cut a whole in the shed for intake

You should be in good shape then. Just put something over the hole to keep vermin out. Some of the grows I have seen in here that allegedly used a 250 HPS were quite impressive considering. 600 is supposedly the most efficient but I already had a 250 so that is what I used. Maybe upgrade to a 600 at some point but I think heat would definitely need to be addressed more aggresively if I do so.