Hey can anyone help me out? I'm designing a solar system for off-grid use. The inverters ( 6 PV based and 6 battery based) will be housed in a 6'x6'x10' room. These 6000 watt inverters are 95% efficient so the 5% inefficiency turns into heat. That is 3600 watts of heat that will be produced when they are all running at max power. My question is what size should the AC unit be to keep the equipment from derating. The inverters can operate at their rated efficiency at 104 degrees farenhiet.