Open vs closed loop electricity usage

[Andy]

Hi all,

For a relatively small setup (say 2.5KW of lighting) and assuming the same yield, how much more power does a closed loop setup use vs an open loop setup? Obviously the main extra draw in closed loop will be the AC unit.

cheers.

 

[Grapefruitroop]

Obviously the main extra draw in closed loop will be the AC unit.

many years ago yes...but now the main draw will be the dehum
My 13000 btu Panasonic When operates at full, consumes less than 200w....i have installed to a voltage stabilizer with analyzer that tells me realtime the consume..its spikes for few seconds to 800w but then get stable on 180!!!..damn its cheaper than running fans!!!
With Leds also i start doubting a sealed room is much more expensive than a vented one....
Go sealed! no smells, no noise, no holes nothing happened......