how much A/C power for 3400 watts?

[black_thumb]

thinking of going vertical bare bulbs seald room with co2.

summer temps get over 100f so ventting only works in winter for my location.

 

[newhiddengrower]

Each 1000watt hps not including the ballast generates about 2500btu of heat.

so to cool 3000watt you need 7500BTU of cooling

 

[B. Friendly]

http://vancouver.en.craigslist.ca/van/grd/2044440577.html
a blower like one of these with only one not 4 fans in the pictures would be ideal worked for me for the same wattage in the past.

 

[newhiddengrower]

http://vancouver.en.craigslist.ca/van/grd/2044440577.html
a blower like one of these with only one not 4 fans in the pictures would be ideal worked for me for the same wattage in the past.

They are just fans?

 

[newhiddengrower]

http://vancouver.en.craigslist.ca/van/grd/2044440577.html
a blower like one of these with only one not 4 fans in the pictures would be ideal worked for me for the same wattage in the past.

What makes these fans special?

 

[mg75]

water cooled...
save electricity... money... or put in another light if you like...

they don't do a good job if it is really humid. you will need a dehumidifier to lower humidity. they rely on water temperature which is usually much cooler than the ambient air. they do use a lot of water and somewhat noisy.

mini-split AC are another option. get the largest BTU you can afford.

 

[black_thumb]

the room is 10x10x8 feet would a 12k btu mini split be enough to get temps down to say 75f even with outside temp over 100f?

 

[DHF]

Rule of thumb for bare bulbs has ALWAYS been 4000 BTU`s of cooling per 1000 watts , so 13600 btu`s for guaranteed conditions using elevated temps with a sealed room runnin CO2........

A 12000 btu mini-split`s borderline/not enough cooling for deep summer temps IME , and if yas use a CO2 generator/burner , that`s just more heat inside the sealed area ta deal with......

Lot ta be said for overkill on a/c`s.......I used 2 ton/24000 BTU wall bangers for my krusty buckets with the same 3400 watts for many yrs and never had anything but optimum conditions in the grow areas with the ac`s never havin ta work too hard........

Good luck BT.....DHF...........

 

[mg75]

the room is 10x10x8 feet would a 12k btu mini split be enough to get temps down to say 75f even with outside temp over 100f?

Get a brand name that has an inverter and a heat pump. Those will tolerate more extreme temperatures. I would be more worried about compressors freezing than over-heating.

12K should be enough for the wattage you are using. You need a professional to install it/vacuum it unless it is a DIY pre-charged model.

I recommend you seal the room and use a CO2 burner. No in or out vents (except the hoods if you like). With CO2 in the room, you can climb up to mid 80s with no problem.

 

[black_thumb]

these that has the inverter??


http://cgi.ebay.com/12000-BTU-Ductl...445378?pt=Air_Conditioner&hash=item518ed17fc2

 

[Bob Smith]

FYI, the efficiency ratings of the AC model do come into play; i.e., I tried to cool 4 600s bare bulb with a 14K portable AC and it couldn't keep up.

If you're in that hot of a climate, I have doubts that the 12K mini-split (which outperforms a 14K portable, all else equal) will be able to keep up.

14K minimum, and that's assuming your room is very well insulated.

 

[black_thumb]

what if i installed cool tubes and had them vented outside the room but not pulling any air out the room just run the ducting though the walls and back out to the roof.

or would i be wasting to many lumenes with cool tubes?

each corner of the room will have a 600 and there will be a 1000 in the center.
each 600 will have a hole cut inthe wall for sucking outside air in.
the 600's will tee off to the 1000 and back outside.

 

[Bob Smith]

It'd be a bitch to work around/design to have five different vertical cooltubes running, but yes, that would seriously lessen the load on your AC.

I had to go with a cooltube, but mine is an 8' tall vertical cooltube because my 600s are stacked on top of each other, so I only need one one intake and one exhaust to cool it.

Couldn't imagine the hassle you're gonna have to deal with to run that many cooltubes vertically, sounds like more trouble than it's worth.

Insulate the hell outta your room, get an 18K mini-split, and call it a day (that's my vote, anyways).

 

[black_thumb]

It'd be a bitch to work around/design to have five different vertical cooltubes running, but yes, that would seriously lessen the load on your AC.

I had to go with a cooltube, but mine is an 8' tall vertical cooltube because my 600s are stacked on top of each other, so I only need one one intake and one exhaust to cool it.

Couldn't imagine the hassle you're gonna have to deal with to run that many cooltubes vertically, sounds like more trouble than it's worth.

Insulate the hell outta your room, get an 18K mini-split, and call it a day (that's my vote, anyways).

yeah i guess your right it would be a lot of hassl but i would really like to setup efficent power wise. i already i have the cool tubes anyways might as well use them hu?

 

[Bob Smith]

Only you can decide if it'd be worth your time to try and set something like that up - you'd need to have a fan for every two runs, so you're looking at three fans for cooling, plus the miles of ductwork, added places for smell to escape, etc............your call, but you know what my vote is.