Intake lights through a window, and up the chimney?

i run 4 600 hps in 2 separate tents, in dual bulb raptor reflectors, so 2 600's per 5x5 tent. I run 600s cause there more efficient then 1ks cause you can get them closer to your plants, that's why 600s cost more then 1000 watt bulbs by 10-$15, lol anyways I wanna run just my lights through both tents intaking through one window and outtaking through the chimney. So there won't be no fucking with any air pressure, I also only run 2 600s at one time cause I use a flip box and run 2 600watt ballasts 24/7 flip flopping my bloom tents. I have run freezing cold air through cool tubes in the past and had no problems.. But what about the 80-90 degree days in the summer.? will I pop my bulbs or over heat my tents? or will it just exhaust the heat out the chimney..? I also forgot I'll be running about 400 cfm through the bulbs if that even matters.