4000W no AC

Okay, planning on 4000watts air cooled, with CO2 generator, dehumidifier, with lights running at night. Do I have any shot at staying at 85 degrees with no AC?I've never used 1000s so I don't know how hot they run.

maybe if you live up north and using that cold winter air to cool your lights and you don't have your ballasts in the grow room. but them co2 generators put off heat to you can probally get away with a cheap window a/c but you can do a dry test just run your room with every thing on 12/12 to see if your temps don't get too high but your co2 genorator will be running a lot more with the plants in it. but no way in hell could you run that room in the summer with no a/c or chiller.

bluntmassa1 said:

maybe if you live up north and using that cold winter air to cool your lights and you don't have your ballasts in the grow room. but them co2 generators put off heat to you can probally get away with a cheap window a/c but you can do a dry test just run your room with every thing on 12/12 to see if your temps don't get too high but your co2 genorator will be running a lot more with the plants in it. but no way in hell could you run that room in the summer with no a/c or chiller.

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Thanks for the response man. I'm gonna run a test run soon but haven't gotten to it yet. I'm gonna look into some chillers.

depends on size of room, either way you need to exaust air from the top of the room/cab and intake from somewhere on the ground to keep hotter air movingout and cooler air moving in

cool the light with outside air and let it exaust outside the room...free warm air...you have a carbon filter?

you need to provide more details on size of room ect ect

RetiredMatthebrute said:

cool the light with outside air and let it exaust outside the room...free warm air...you have a carbon filter?you need to provide more details on size of room ect ect

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Yeah, sorry about that. The room is a room within a room, sealed 12x12. Outside air may be a problem, I'll likely have to cool the hoods with air from the space outside the room.

i got 6 adjust a wings 4 1k's and 2 6's in a 500 sq ft. area with no AC.. i love winter.

For sure u will need an a/c. Consider using bottle co2 instead of a generator. If your not air cooling your lights u will need a 16- 24k btu a/c. A totally sealed room that is being co2 enriched main function is an a/c and co2 enrichment function.

a mongo frog said:

For sure u will need an a/c. Consider using bottle co2 instead of a generator. If your not air cooling your lights u will need a 16- 24k btu a/c. A totally sealed room that is being co2 enriched main function is an a/c and co2 enrichment function.

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Yeah, I know all of this, but was hoping beyond hope that maybe I wouldn't need an AC. I've never vented lights before, never had lights on at night, and never used 1000W lamps, so I'm ignorant to just how much heat all of this would generate.And I hate the thought of a CO2 bottle; I really don't want to have to deal with refilling it so often, I think it looks suspicious.

doniawon said:

i got 6 adjust a wings 4 1k's and 2 6's in a 500 sq ft. area with no AC.. i love winter.

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That's a ton more space with only 1200 more watts. If I had that type of space I think I would be fine too.

you would need to pull alot of cold air in from outside and blow the heat out.. probably a constant exchange.. co2 is probably out of the question. but you can get by without an ac for shure

doniawon said:

you would need to pull alot of cold air in from outside and blow the heat out.. probably a constant exchange.. co2 is probably out of the question. but you can get by without an ac for shure

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CO2 is a must and outside air is probably not gonna happen, but thanks for the advice and if you have any other ideas let me know.

i just dont see you getting away with it. you will need an ac, thats a lot of heat to deal with, lights, ballasts, co2 gen, dehumidifier. i run a sealed 6x10 with 3k in lights and same equipment and air cooled lights, there is no way i could do it without a good ac. a minisplit would be perfect for your room.

Can u get 4 digis and bump em down to 600's?

a mongo frog said:

Can u get 4 digis and bump em down to 600's?

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No I can't. But thanks fellas, it looks like I'm gonna have to go with an AC. I'm gonna try and get away with a 10,000-12,000 BTU.

you could water cool the lights but it would take 2hp of chiller or better, then your 12k btu ac may do the trick.

just buy like all the 12 inch fan`s you can afford and then kick your self cos`s 2 12000 btu aircon units would be cheaper.

RetiredMatthebrute said:

depends on size of room, either way you need to exaust air from the top of the room/cab and intake from somewhere on the ground to keep hotter air movingout and cooler air moving in

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Most definitely. I run 2 1000w's in a 4x8x7 with 48F intake air, 400cfm in, 400cfm out and i still bearly manage 80 stable.

4 1000's? yikes. better make it a 12x12 lol

i tried the same thing.used a two burn sentinal co2 generator,took off one burner.had a 10 inch vortex split off into two 8 inch ducts to cool two rows of light.used a sativa that could handle higher heat.didnt work that great.if i did it over i would use two 8 inch vortexs,one per row of lights.tape up your hoods with scott 33 electrical tape,keep your co2 and smell in.all sealed hoods leak.as long as temperatures dont get above 80 outside it should work.cooling your hoods with hot air is pointless.

I battled heat in an 11x11 room w/ 4 600s and batwing reflectors.went thru a window unit and two stand alone air conditioners before i got a set of air cooled sealed reflectors and went with a dual tube 1400btu a.c. and my same old 8in vortex fan...have a 6in pulling in and the 8in pulling out (is split to the veg room and does its job exhausting both)..my problem was I put the exhaust from the a.c. through the floor(heat rises) and it negated the a.c.'s. ability to cool itself and the 4 lights...my point is:: exaust ALL heat effectivly...sealed hoods,the a.c.(if possible a mini split,has no heat brought in the room),and inline fans need to be bigger than you estimate..as far as co2, go with a bottle,maybe two with that size room..a burner will cause more trouble (and worry) in a room that size..burners should be used for 20x20 rooms I would imagine