If your really worried wait till colder months and use a carbon filter and pump the heat into your home. But I doubt one 150HPS would even make a bleep on there Radar so to speak. I would be worried about using more then a few 1000watters but I use CFL's in the summer and the big boy in the colder months and just heat my home with it. BTW I also put my room next to my furnace. Maybe I'm a bit paranoid.