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I'm running 3600 watts in cooltubes and was wondering how many btu's it would take to cool my room. It can get to be 110 f around here. Anybody got any rules of thumb to fallow?
i would go with 24,000btu / 2 ton of cooling. i am cooling 6*1000w air cooled lights in one room. but it doesn't get nearly as hot here as it does where you are.
a 2 ton window unit like the LG might work very good for you as it has for me. although I just got my first split AC and I love it. at AC-World.com you can get a 2 ton split AC delivered for around 1500 bucks. I installed mine myself and I was able to place the indoor unit in a more central location in my garden. which helps it work a lot better plus my entire room is the same temperature.
Vented hood around 3000btu per 1000w of lighting if ballast outside of room ,add 500btu for each ballast inside room,for bare bulb count around 5000btu per 1k of lighting.
Rule of thumb has always been 4000 btu`s of cooling per 1KW bare bulbs , so with even 5000 btu`s for 3600 watts @ 18000 btu`s constant required , you made a good decision to go with a solid 2 ton/24000 btu wall banger setup with heat exhausted outside using air-cooled tubes....and why ?......
Overkill`s underrated.....A/C will run less and not be strained while lasting longer , and that`s a good thing.....also....
Make sure you get a unit with "auto re-start" when power outages occur cuz they will , and there`s nothing worse than going to a setup and finding fried plants cuz the A/C didn`t come back on once power was restored....anyways.......