mello
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X2I go by 6000btu of cooling per 1000w un aircooled.
I also mount ballast outside of the room.
leadsled, thanks for that Excel link.
According to them, their 4 ton 48,000 BTU unit will cool 12 K, plus CO2.
All input here has been much appreciated!
I use 4000 btus/hr for properly air cooled lights and 6000 btus/hr for unvented lights. Some climates will allow somewhat less but never go below 4000 btus/ 1kw. I am an HVAC tech doing grow room installs in SoCal. My bottom line is if you want to take a chance and lose ur crop then go for it.
Cannabisjohn, thanks for your input.
What would you suggest for 12 k, co2, 3 dehus, 360 sq ft room with 10 ft ceilings?
The room will be built to spec so I can use whatever insulation necessary. And I'm in the NW so climate is generally pretty cool.
Cheers!
I have a 4x4x6.5 tent in which I run a 1000watt HPS in a cool tube setup (w/ digital ballast). The light has its own intake and exhaust using a 270CFM booster fan (pulling ambient air from the bedroom through the hood to cool). The tent has a 6-in centrifugal fan rated at 470CFM pulling in air through a passive intake in the tent. The fan currently runs full-boar, but will get a speed control once I get the carbon air scrubber (to slow down the fan to improve odor removal). There is a tower-type oscillating fan in the tent to circulate air.
Here in OR it hits the 90's for about 2-3 weeks a year. I want to install a window A/C unit to cool the bedroom and ostensibly the tent itself. The exhaust from the tent AND the light will eventually dump out the window through a vent to the outside.
Should a 5000-btu unit cover my needs?
Right now, with daytime temps around 55-65 the tent hits as high as 80* with the HPS on and the light/tent exhausts dumping back into the bedroom (I just need about 8ft of 6-in tubing to finish the exhaust to the outside...).
Thanks!!!
greener
1000 watts equals 3412 BTU.
Should be close. Might go a little bigger to like 7000 btus
I have 8 unvented (adjust a wings) 600's being cooled by a 24k mini split and it is having no problem so far, it was 100 degrees outside today.
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