why is my room not cooling!!!

as long as the room is enriched with full levels of co2, and the nutrient solution remains in the high 60's or 70's that amount of heat is no issue at all. I am a little concerned at the slow growth though.....those should be much bigger by now concentrate.

Hey, so I see you have a mini split, love the idea and I know they are rated with the use of CO2 in the room as well.. The problem is, everything on the market is based on Marketing****.. People say u need to account for 3500BTU for 1000watt, some say 4 but its really 5000BTUs I find in a seal room for each 1000Watt bulb. In all honestly.. So your AC unit is maxed just with your lights.. But how come your AC unit is not dehumiding your room for you? ANd how come u need the two other dehumd units?? At 83degrees your RH in flower could be around 70% but your dehum should bring it down to 60 for sure!! Yea they do produce heat too and so does the ballasts but I would still think your AC unit should do a bit better job than 83... One way to solve is get some Co2 in the room Than your 83degrees is fine.. Did u install the mini split or get a hvac tec in ? Maybe your lines are running with to lil HFC in the unit. I would go check the outside unit and see how hot it is running. U check all the gauges to make sure they are running at optimal?? My guess the AC unit is not running at full complicity.

concentrate101 said:

i am trying to get all the light i can and in my opinion i loss 10 percent light when i put the glass on my hoods

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From experience using a light meter I noticed only when my glass was dirty did I lose a percentage of light and it was about 4 percent on a 600 watt cooltube. Also noticed that when i connect the inline to the light it isnt as effective.. Im having major issues with intake and exhaust. I just have no way of bringing fresh in... I can exhaust but no fresh cool coming in.

Can u hook up a filter than pull through the filter. This works if your not pulling through 6 lights, works good with 4 in a row, maybe take the prefilter off. I hooked a system like this up for a friend and it worked well.. The difference between the temps in each shade did not vary much! All he had was a window to vent out of.

i'd go with tavidude or get some wings, those steel reflectors are the source of the heat problem

jrainman said:

how big is the room? have you always had this issue are is it somthing new, have you serviced your mini split, were the dehumidifiers something you just added, I ask this because the dehumidifiers may be pulling to much moisture leaving the mini split unable to absorb ( btus) heat load effectivly.At 2.5 tons I think you are rite on the threshold of the units capabilty vs the rooms total output of heat. so any added heat load or proper maintaning of the minisplit might play in to this

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Rainmans right. Too much heat from lights for the size of your a/c. Dehumidifiers can put a lot of heat off too. I read somewhere that you should have 6k btu of cooling for every 1kw of uncooled light and 3k btu for 1kw cooled light. I have found this to be close to accurate.