How to determine size of Co2 Gen/Air Conditioner?

This is my first large scale grow ... I have 6 closet grows under my belt but thats about it.

I'm trying to determine what size Ac Unit and Co2 Generator I need for my new grow room.

The room is 12 x 10 and has 4 600w HPS and ts a basement grow so it stays relatvily cool.

The Co2 Generator, AC Unit, Ballasts and Outlets are all in a separate room from the plants to reduce heat.

Any one have a formula to figure out how many btu my AC needs or how big my Generator should be

1 ton for every 500 sqft

Here you go. It's how I picked mine. Scroll down a little to input your room dimensions and desired PPM (about 1500). Your question will be answered by the best in the field.

Green Air Products - Principles of CO2 Enrichment

For CO2, not AC.

Quote:

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Originally Posted by Thehulkster321

so it stays relatvily cool.

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Then why bother with AC?

For AC I use 3000 BTU's for each 1k of light.