Help please :)-Grow room temperature control

This question is geared toward controlling temps in grow room.

First a quick idea of my whole grow room. It consists of 5 tents. I have 2 flowering tents with 600w how's, 1 med stacker tent with a 400w cmh for veg, 1 small stacker on top of it with 125w flouro for post cloned early veg plants as well as clones which sit out of the direct light, and last but not least a 2x3x5 grow tent with a 125w flouro for mothers. No CO2 being used.

I am looking to switch over to 1000w lights from my 600w set up. At first I was thinking of just air cooling them since I have the hoods, but then I did not want to deal with the bs of cleaning them and light loss, when I can use the winter weather to cool them.

So here is my plan. I want to draw air in from outside through an inline fan hooked up to a thermostat to keep the grow room temps down. Temps outside will range from the 20's-40's Fahrenheit so should be no problem bringing down the heat.

Question: Would I be able to draw outside air into the grow room itself to maintain the temperatures inside my tents, or would I have to individually get fans for each flower tent and separate thermostats as well, and draw directly in to the tent?

This is relatable to those that utilize air conditioners as well with grow tents and 1000w bulbs. Do you draw directly in to the tent or do you keep the ambient temps in the room itself down?

A few more notes I forgot to add:

My flower tents run one on one off, so there will be 1000w always burning, and my 400w cmh runs 18/6 mostly.

I am currently exhausting my air from my tents back in to my grow room with no problem of heat stress. I will probably switch to venting it out now.

My grow room as a whole measures 10ft X 10ft

My grow medium is coco in 2 gallon smart pots, 9 per light.

I think you need to re-think your whole setup. Sounds way to complicated.

Its not easy drawing cold air from outside. At that temp, anything the air touches will cool the object to below the dew point, causing condensation.

- Jiji

If you pull air that cold into your hot tent it will rain in there!

I think these guys concerns about cold air/condensation are justified but I do something similar and its working great, no problems... and I live in Alaska. You just need to be creative.

I am running a vert barebulb 400w HPS. I have a passive 6" dryer duct coming from an outside window, 5' long and aimed directly beneath the fan. The fan sits on the floor, directly beneath the bulb, blowing upward, and pulls just a little bit of cold air from outside as it circulates/cools the bulb. I can regulate the tent's temp by openin closing flaps, that controls how much outside air comes in but my temps range from 69 to 76 and I like that.

Granted my setups smaller and probably less complicated than yours but where there's a will right?

Thank you for the replies.

I could direct the air to blow away from all of my equipment outside of the tent, that way no condensation gets on the electrical. It will mainly be to control the room temperature outside of the grow tents.

I have yet to setup the 1ks. While running the 2 600s and venting straight back into the room, my room stays at about 80 with the window open. I am wondering if I can achieve the same with the 1k by venting the tents to the attic.

What do you think my best options are?