HOW MANY BTU's for 3x1K GAVITAS

Im setting up a small grow in a 12 x 10. 3 Gavitas 1K. How many BTU's do You guys recommend?

24k BTUs would just cover cooling needs if ceiling height is 8 feet. I’d go with 36k personally.

3Kw = 10,242 Btu/hr worth of heat

axtorus said:

3Kw = 10,242 Btu/hr worth of heat

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You're missing heat dissipated by the ballasts and the cooling requirements for the room volume as well.

suthrngrwr said:

You're missing heat dissipated by the ballasts and the cooling requirements for the room volume as well.

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The sunlight supply website has a btu calculator that accounts for pretty much everything. It's totally plug and play.

Not sure what that 24k BTU for 3 lights is about. I cool 6 1000w DE's turned up to 1150w and have no issues with getting my temps down to the mid 70's, even with my dehumidifier running.

suthrngrwr said:

24k BTUs would just cover cooling needs if ceiling height is 8 feet. I’d go with 36k personally.

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A ton of cooling for each lamp?? That’s insane lol. I ran 4 phantom de’s last run and cooled them with a single 8” intake from outside. It’s winter so temps would get down to 35-40 at night and my fan would actually turn off on thermostat.

Where are you located and what’s ambient temp of your room? Room dimensions?
I’m in a pretty hot area and a clients sealed/insulated room has 8x 1kw DE’s that a 4 ton can’t keep up with. In overdrive mode, I’m sure a room with an ambient temp of 80-90F would require at least 6000 btu per light between dehuey. Then you gotta step up 1 from there. So I would assume a 24000 btu would be just that.