A/C in a sealed envrionment?

[McKush]

cheers man, is the clear hose the air inlet or the outlet?

They usually have a 6 inch exhaust port which is the left side black insulated duct which i exhaust *outside* and the clear duct is a 12 inch fresh air inlet which draws from the crawl space but outside the room. Note that i do not scavenge any warm exhaust air in my set up. The inlet and exhaust are physically separate. That is important to always pull in fresh air.

I used a 5 gal bucket cut in half and alum vent tape to creat the inlet port that the 12 inch clear flex duct attaches.

Im not advocating for anyone else to do this. this is what i had to work with. this same model had a version i saw browsing which was dual port not just a single port like mine so i reckoned i could convert a single to a double. I dont know if the double ports have any other significant differences than the single port models other than 2 ports....

As i mentioned above u will not have a perfect seal but it is fairly good.

Mini is the way to go tho if you can swing it

 

[moses wellfleet]

https://www.icmag.com/ic/showthread.php?threadid=260794

 

[jav2043]

yea man opting for a 12,000 BTU minisplit AC, 9 x 600w in vented hoods, should put my BTU upto about 9800, so theres a little wiggle room for the dehumidifier and fans running, should be able to keep the temps to a reasonable level

I was running 8 600's 8in vented blockbusters and had to replace my 12k btu with a 24k.

 

[McKush]

^ he said he is using vented hoods ( I presume, enclosed vented hood fixtures?) I don't know how that changes the general formula of 1k/5k though.

You could never run 5.4K open fixtures with only 12k btu of cooling, you would need double that, so numbers are working against that idea for sure.

 

[DemonTrich]

a dual hose is ideal for sealed co2 enriched rooms. one hose is intake, one exhaust. this ONLY helps to cool the compressor, NOT taking any air from inside the room, nor depleting any co2. Ill have my new dual hose in my room, with the intake hose hanging out on the floor taking in lung room air, then run the exhaust out the window. I do run my exhaust about 20', so I use a 6" 440cfm on speed controller. I currently run a 14k and 8k btu portable single hose, non sealed room at this time.

 

[Cork144]

9 600s in vented sealed hoods, read somewhere you can cut the BTU rating in half if using vented hoods, BTU rating being whats actually being emitted into the grow space, not whats enclosed in the hood itself.

 

[Cork144]

Each light 1w = 3.412 BTU, a 600 is 2047BTU,
with the vented hoods and being able to half the BTU output to the actual grow space, puts me to 1023.5BTU per hood
1023.5 x 9 is 9211.5 BTU

There will be slight air exchange in the space, so it wont be a true sealed grow but I am aiming to exhaust the room once every 4-5minutes

 

[Cork144]

Will probably up to a 18,000 or so based on everyones advise, it is cool here in the UK though