Plexiglass pane?

[Dragon311]

Somehow my point about not needing or wanting your lights that close to your plants was lost

CFLs need to be that close. I know, you don't understand because you look down on CFL usage. So just pretend like you didn't see this and move along.

 

[wickedgrow]

lol the problem is the plexiglass could create hot spots by redistributing the light and focusing it in certain areas and you wont get an even distribution of light. It probable wont melt but it will more than likely warp a bit causing even more uneven distribution of light. It could convex and act like magnifying glass but to a much lesser extreme. Same with glass. you dont know how its going to redistribute the light.

Buy or make a cooltube or vented hood.

u totally contradicted ur self man.. u was sayin that it wont distribute the light evenly so go buy a cooltube ... um whats on the cooltube? plexiglass or glass...

but on a different note i have a veg grow box and it kept at a contestant 90+f (dont take air flow i already know air flow and i have very good intake and exhaust) its the cfls i have seem to b the hottest cfls ive used (100watt daylight 5k cfls) but i put a sheet of plexiglass i had laying around from a past sunroof project i had to do and i used my torch i have and melted and bent the plexiglass to fit the box and lights just the right way goin along with my exhaust and now i have my box still bright as shit and temp dropped to nice constant 78f
so i say go for it give it a try. im now thinkin about putting a sheet under my flower light and see if that drops my flower box that tends to hit 90+ also...
stay up stay toastie hope my experence with plexiglass and high heat helps.

 

[Nizza]

people need to understand how to properly cool their rooms if your intake is 20 degrees cooler than their room temp... really with proper air circulation and venting you will see a 10 degree difference, without a cool tube or anything, which is why i dont understand why a lot of people use the cool tubes. you claim they dont reduce lumens when in fact, they reduce your lumens a lot... talk to anyone doing vertical, they believe in physics and its very important you have a fresh air intake and that exhaust air doesnt go back into your intake air, unless you have problems with things being too cool. Cold air will come in naturally through the bottom and hot air will naturally rise up and go out the exhaust fan. I see too many people overlooking the engineering factor of a growroom and they think that if they get all the equipment they'll be fine... you dont need a lot of equipment you just need the know-how, and i'm not saying there arent uses for cool tubes (co2 grows) but i def think that you could just redesign things and not need one.

 

[jrainman]

people need to understand how to properly cool their rooms if your intake is 20 degrees cooler than their room temp... really with proper air circulation and venting you will see a 10 degree difference, without a cool tube or anything, which is why i dont understand why a lot of people use the cool tubes. you claim they dont reduce lumens when in fact, they reduce your lumens a lot... talk to anyone doing vertical, they believe in physics and its very important you have a fresh air intake and that exhaust air doesnt go back into your intake air, unless you have problems with things being too cool. Cold air will come in naturally through the bottom and hot air will naturally rise up and go out the exhaust fan. I see too many people overlooking the engineering factor of a growroom and they think that if they get all the equipment they'll be fine... you dont need a lot of equipment you just need the know-how, and i'm not saying there arent uses for cool tubes (co2 grows) but i def think that you could just redesign things and not need one.

Nizza PERFECTOOOOOOOOOOOOOOOOOOOOOOOOOOO

 

[DWiggles]

people need to understand how to properly cool their rooms if your intake is 20 degrees cooler than their room temp... really with proper air circulation and venting you will see a 10 degree difference, without a cool tube or anything, which is why i dont understand why a lot of people use the cool tubes. you claim they dont reduce lumens when in fact, they reduce your lumens a lot... talk to anyone doing vertical, they believe in physics and its very important you have a fresh air intake and that exhaust air doesnt go back into your intake air, unless you have problems with things being too cool. Cold air will come in naturally through the bottom and hot air will naturally rise up and go out the exhaust fan. I see too many people overlooking the engineering factor of a growroom and they think that if they get all the equipment they'll be fine... you dont need a lot of equipment you just need the know-how, and i'm not saying there arent uses for cool tubes (co2 grows) but i def think that you could just redesign things and not need one.

Somehow my point about not needing or wanting your lights that close to your plants was lost

You too are fuck tards. Did you take a minute to wonder why someone would be asking about the plexi? Nizza youre not as big a fuck tard as the other guy, but no shit the hot air goes out the exhaust, located at the top. What neither of you considered is that maybe we are not using an entire room or that I was practically micro growing. I personally was using a 2.5 x 3 x 3.5 cab with 3 gallon pots. did not leave much room for anything else, also it was the first grow--I thought a 6" fan would be good enough for my ~30ft3 cab what I did not consider was the necessity of a cool tube with my limited height and radiant heat issues. Next time ask urselves some questions about why before assuming-- then you will be thinking critically.