loftygoals
Well-Known Member
My setup is not actively water chilled. I run a car radiator and a 12V car radiator fan (at 5V so its barely audible).
Water pump: 28w (Eheim 1250)
Rad fan: 35w (80w "universal" 16 inch fan running at 5V)
Total 63w.
To cool 3600w of COBs that's not too bad. Under 2% of total power draw is for water cooling the lights.
In an active setup like ttystikk's he's using a water chiller in place of (or in addition to?) aircon. Instead of using air as your medium of heat transfer, he uses water to transfer heat away from the grow. Water chillers are more efficient than aircon units so he probably is paying less for his cooling than someone using passive/active COB heatsinks but then running aircon. He also has the advantage of getting more lumens with the cooler COBs. So it's a win/win.
Water pump: 28w (Eheim 1250)
Rad fan: 35w (80w "universal" 16 inch fan running at 5V)
Total 63w.
To cool 3600w of COBs that's not too bad. Under 2% of total power draw is for water cooling the lights.
In an active setup like ttystikk's he's using a water chiller in place of (or in addition to?) aircon. Instead of using air as your medium of heat transfer, he uses water to transfer heat away from the grow. Water chillers are more efficient than aircon units so he probably is paying less for his cooling than someone using passive/active COB heatsinks but then running aircon. He also has the advantage of getting more lumens with the cooler COBs. So it's a win/win.