Heat signature question (250w HPS)

Hello all, first post, hopefully it's in the right area. I am planning my 1st grow, indoors, and here's what I am sure will be the first of many questions. I have an area in a closet that I would like to put a 2' x 2' x 5' grow box. I am planning on using a 250w ballast, possibly with cooltube, and ducting it out of the top of the box into the attic. What measures, if any, should I take in regards to any heat signature this might create. Looking forward to your input.

Thx,

None. Don't worry about it with a light that small. Only worry if you exceed 1000 watts.

Thanks Warlord. Do you think this size light in the cabinet dimensions I listed would be sufficient for a scrog?

Ya 2ft is probably max though.

What about reflective material on the inside, is there anything out there better than mylar thats not going to cost me an arm and a leg? RJJ's a bad mofo btw.

Mylar is pretty cheap dude... Maybe a can of flat white paint is cheaper I don't know

Cool, wasn't worried about the price of mylar, just thought if there is something better out there I'd get it unless it was like 10x the cost without the benefits.

Check out omniflect, here is a link: http://htgsupply.com/products.asp?categoryID=6&subcategoryID=181

It is a lot easier to hang then mylar and cleans much easier. It is a little more expensive but it is worth it. Mylar is such a bitch to hang it isn't even funny

Thanks for the input tom, since cleaning is not my strong suit seems like the best approach for me.