Hi Macnasty,

Saw you said hi to me on another thread, did not mean to ignore you just ran out of time....then continued my self imposed "time out".

Like Dutch said it should be fine.

Portables and windowless are the least efficent ACs, better is window or sleeve and best are the small split AC systems. With that said, there are advantages to the portable...like easy venting of the heat, simple one hose. I used a Sharp's 12,000btu windowless in a sealed room and it works great and deals with 1320watts of LEDs and 2,000watts of PSMH.

For you and others, I'll repeat this advice. When dealing with sizing AC or other cooling treat the lights like they are electric heaters. Since there are 3.413 BTUs in 1 Watt, so in mini-mac's example 1000w of HPS means 3,413 BTU to be cooled. Once you cover the wattage producing heat, you then need to figure out and guessimate what, if any, cooling you need between the room and ambient temp outside the room.

OM