What size mini split to cool 4 gavidas ?

MrStickyScissors

MrStickyScissors

Well-Known Member
I found a mitubishi 16 seer 36,000 btu for 2100. Do you think I will need a 3600 or should I get a 24,000 btu. I just want to make sure I have enough cooling power for summer.
 
Smidge34

Smidge34

Well-Known Member
I'd get the extra 12K for that price. Who knows, you might want to add a couple more lights down the road.
 
Smidge34

Smidge34

Well-Known Member
I'm not sure, as I still haven't fired mine up for more than an hour. I'm still setting my new grow up. I hear they are pretty hot, but to be honest, I'm gonna concentrate less on A/C in this grow and more on removing the heat produced. I'm going with a 14" 2300 cfm fan and a matching phresh filter and eventually as I add two more Gavitas I'll likely add another fan and filter just like them. BUT I'm looking at close to $800 per combination for them, more if I go with a Vortex fan. I'm basically gonna keep the rest of my house grow room comfy and rely on air movement.
 
MrStickyScissors

MrStickyScissors

Well-Known Member
Smidge34 said:
I'm not sure, as I still haven't fired mine up for more than an hour. I'm still setting my new grow up. I hear they are pretty hot, but to be honest, I'm gonna concentrate less on A/C in this grow and more on removing the heat produced. I'm going with a 14" 2300 cfm fan and a matching phresh filter and eventually as I add two more Gavitas I'll likely add another fan and filter just like them. BUT I'm looking at close to $800 per combination for them, more if I go with a Vortex fan. I'm basically gonna keep the rest of my house grow room comfy and rely on air movement.
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I'm running max fans. I like them better than vortex. I plan on running a nice a/c and having a 14 inch max fan pulling air our of the room. along with some 18 inch wall mount fans. I had an idea of taking a 4 or 6 inch exhaust fan and putting the ducting thru the wall so that in the winter I could pull cold air from outside and just run a dehumidifer if I needed it. only thing I don't like about that idea is I'm opening a gate way for pests.
 
MrStickyScissors

MrStickyScissors

Well-Known Member
Oh yeah, I was going to put a 4 inch exhaust fan str8 thru the door that leads into my house and then run ducting over head down the hall way pulling air from the area that we are always in. I was thinking it couldnt hurt to have all that co2 we are exhaling plus the cool fresh air
 
Carolina Dream'n

Carolina Dream'n

Well-Known Member
MrStickyScissors said:
I'm running max fans. I like them better than vortex. I plan on running a nice a/c and having a 14 inch max fan pulling air our of the room. along with some 18 inch wall mount fans. I had an idea of taking a 4 or 6 inch exhaust fan and putting the ducting thru the wall so that in the winter I could pull cold air from outside and just run a dehumidifer if I needed it. only thing I don't like about that idea is I'm opening a gate way for pests.
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I recommend to go fresh air or sealed. The mix of both is an absolute waste of power.

Think about it this way. When you turn on the ac in your house what's the first thing you check? To make sure that the windows and doors are shut because your don't wanna pay to air condition the outdoors.

Same concept here. Your plan would be sucking the cold air your paying for right out of the room. Get that 36k and you'll literally never worry about temps. Set it and forget it.

Only inline fan you NEED is on your carbon filter that just scrubs the air, no exhaust. You can have one for an O2 and co2 dump. Not a must though
MrStickyScissors said:
Oh yeah, I was going to put a 4 inch exhaust fan str8 thru the door that leads into my house and then run ducting over head down the hall way pulling air from the area that we are always in. I was thinking it couldnt hurt to have all that co2 we are exhaling plus the cool fresh air
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Your going to create negative pressure in your housing doing this. Which means every crack on your windows and doors will suck air right into your house. Making your central ac work hard as hell.
 
Smidge34

Smidge34

Well-Known Member
Man I was thinking myself about the sealed off route, but there is no way to get around co2 enrichment then that I know of. Or am I all wrong? I'm really struggling on just exhausting like a mfer but now you have me questioning myself. I can go either way so long as I can maintain my temps running these lights and still have plenty of "fresh" (or co2 enriched) air.
 
Smidge34

Smidge34

Well-Known Member
What I was gonna do was keep my living area the perfect temp/humidity, install an intake with Phresh intake filter into my grow room and exhaust the shit out of the room, through a larger Phresh carbon can filter to remove the heat. So you are saying the suction created would be bad on my a/c in the summer?
 
Smidge34

Smidge34

Well-Known Member
I'm not trying to hijack your thread Mr. Sticky, BTW, just really curious about this. My grow room is big for a personal grow space, 30'X15' with 10 ft ceilings. I'm just using a 10'X5' footprint, so there is a LOT of cf left to hold and dissipate heat or I think it should.
 
Carolina Dream'n

Carolina Dream'n

Well-Known Member
Smidge34 said:
Man I was thinking myself about the sealed off route, but there is no way to get around co2 enrichment then that I know of. Or am I all wrong? I'm really struggling on just exhausting like a mfer but now you have me questioning myself. I can go either way so long as I can maintain my temps running these lights and still have plenty of "fresh" (or co2 enriched) air.
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Enrich with co2 with tanks or a burner.
Smidge34 said:
What I was gonna do was keep my living area the perfect temp/humidity, install an intake with Phresh intake filter into my grow room and exhaust the shit out of the room, through a larger Phresh carbon can filter to remove the heat. So you are saying the suction created would be bad on my a/c in the summer?
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Yea it creates a suction in your house. So every little crack will suck in hot air in summer and cold air in winter.
 
MrStickyScissors

MrStickyScissors

Well-Known Member
no problem smidge I learn from other peoples questions as well. I don't agree though that exhausting air from your room would be a waste. in the summer then yeah but if you house is cool in the winter and you have a sealed room exhausting the air would allow your room to breathe no?
 
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