Will this be too hot?

I am currently using an aerogarden inside a 2'dx4'wx8'h closet with cfls added on. I have 1 plant starting in soil. Will this 150w HPS system be ok for a small grow? http://www.dchydro.com/product/2775/150-HPS-Sun-System-Complete/

There is also no place to vent it right now other than leaving the door open. Will it get really hot in that amount of space? Thanks in advance.

It will probably be ok with the door open if you put a fan in there blowing out the hot air and creating circulation.

Air circulation in a small space is very important.

Good luck.

Thanks it will only be temporary until I can afford one of them grow labs.