Please Help Me Solve My Problem :(

well basically i have been using a 2x2x2 tent for some time now with 3 x 600's but have been wanting to use 4 x 600w but heat will not let me do so, but now my tent is old and stitching ripping zips broken etc i decided to drop the tent now making my room 3m x 2.5m and lined it with reflective sheeting thinking with the extra space etc i could now run the 4 i have been waiting so long to use.... but that was not the case i am now struggling to control the temps with 2 x 600's i originally put the 4 up thinking every thing would be ok but boy was i wrong temps were hitting 98.F could not figure out why so i turned 2 lights off leaving me with 2 on and temps are still at 91.F..

what is going on? i cant get my head round it bigger space etc same equipment im really baffled could it be the reflective sheeting??

my extraction going out is a 200mm 8'' L1 fan and filter

and i have a 5'' A1 for intake.. (also have a 6'' A1 but it raises temps even more)

after swapping intake fans around etc i have found no fan is keeping it cooler getting me a 91.F with 2 600's (passive intake) with a fan attached the temps climb higher... so far im a couple hundred quid light and a none functional room im worse off now than i was before i started

any help / ideas would be great

now that you have a bigger space you need bigger fans to clear the room of that hot air thats why its getting so hot man what is the cfm rateing on your fans?

i would personaly recomend getting some cool tubes or a few air cool hoods cool tubes would be the cheap way to go you could probably get 4 for 80$ then you would be good

its a systemair 200mm 8'' 983 m³/h , its weird because i have had temps perfect with a 6'' extractor a few years back with 2 600's and this 8'' is a beast it has the reflective sheeting sucking in like its going to pull if off the wall and you can feel the pull on the door of the room when you turn the handle it try's to snatch the door out your hand its so powerful, i thought i would of easy dealt with 4 x 600's in that space i had to turn my extractor fan turn down slightly (it has a dimmer switch on it) in the 2x2x2 tent cuz it made it a bit cold a full pelt now the fan is flat out and carnt handle 2 600's never mind 3

stickyicky0420 said:

i would personaly recomend getting some cool tubes or a few air cool hoods cool tubes would be the cheap way to go you could probably get 4 for 80$ then you would be good

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A chain breaks on its weakest link. In this case that is a lot of heat in a very confined, not to mention small, space. Corralling that heat and moving it away ASAP is key to trying to get temps down. Fans only move it. They don't cool it. Good advice and biggest bang for the buck IMO.

you need to think ac or water cooling. there is no way around it indoors with that many lights.

now the tent is down the room is now 3m by 2.5 ( about 10ft by 8ft ) dont you think 8'' out and 5inch or a big passive intake should be enough to handle them lights? im just thinking maybe something else is wrong due to me running more watts than that in there in a smaller space before with no problems

superstoner1 said:

you need to think ac or water cooling. there is no way around it indoors with that many lights.

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but i dont understand why though?? im struggling with 2 600's now, i was running 3 600's with fan turned down a little with no water cooling of A/C and temps were perfect 2 lights is not many

well you can keep struggling with it but its not going to change it. you need some sort of cooling system if you plan on having any decent sized indoor grow, period.

i think your missing the point to my problem... well you can keep struggling with it but its not going to change it. you need some sort of cooling system if you plan on having any decent sized indoor grow, period. ...... if i put my tent back up etc and everything back to how it was it can run 3 600's no problem in a 2m x 2m x 2m no wont be struggling with no heat... i just thought if the extra 1.5m of space plus .5m in height i will be able to run the 4 600's.. didnt ever think i would be worse off than when i started i just presumed 3 600's would be minimum, do you think the reflective sheet could be playing a big part of the heat? under the sheet the walls are white? if so would i be loosing much light/yield by removing it?

i use flat white paint.

is your exaust runnign back into the room the grow room is in? if so i would deff vent it out side or in another room away from your intake i upgraded my 1k hps lights to air cooled hoods saved me all kinds of money im serious it is worth the 60$ i payed 4 them. if u need somehitng cheaper you can just get a cool tube for 20$ get a few and you can use the same fan u have for exause to blow the source of the heat right out of the room trusst me on this one it is well worth the small invesment i got mine off of amazon

after all thats where all the heat comes from wouldnt it make sence to vent out the source of the heat
good luck friend

yes mate it does seem to make sence im just shocked at the heat difference just by opening the room up bigger and adding reflective sheet but you are right i guess it is going to be the best way to solve the problem but at 91.F with 2 lights if i used 4 cooltube hoods do you think i could run the 4 600's in there?? if not i might aswell just put everything back as it was and just stick with the 3 600's, also does the white reflective sheeting cause much heat i only ask because after checking today during light off the room is sitting at 70.F where as it was around 60.F before??

the extraction goes out the room up into the loft, the intake is from a vent in the actual room

im thinking some how you heat is geting blown right back into your room did you acidently cover up any ac vents or anyting? i mean this heat has to be comeing from somewhere and i wouldnt think that that refective material would raise the temps in the room but hey anythings possible i would go back to that old tent or stay in the new one with 4 air cooled tubes either way your wining because you can finaly run 4 of them in you old tent and yea my room would get into the 90,S before i got my air cooled tubes now they are in the high 70 sometimes low 80 82 is as high as mine get. i relly think that you would benifet from some air cooled tubes or hoods in the long run and you would save allot of money time and frusteration on heat management. i relly hate it for you though let me know if you ever need anyting elts

hi mate how would you set up the 4 cool tubes in the room? as i only have the 1 vent for my intake which is taken up, say if i was to get 4 6'' cool tubes i wont be able to add it part of my extraction due to it being 8''... i can also get my hands on another 8'' 200mm fan/filter which can also be turned down etc free of charge from a very good friend could i put that up aswell so i got 2 of them 1 each end of the room? and adjust speed to ideal temp would this solve the heat problem or cause more problems i don't mind getting the cool tubes im not trying to skimp out im just looking for the easiest way to get round it i has gave me a banging headache already lol