how to build a cool tube?
- Thread starter berbes
- Start date
why bother with all the fuss when you can get one prewired and fabricated for under 150................................
http://www.nationalgardenwholesale.com/detail_lighting.php?id=04_RF&prod=1353
just me two cents but 6" diamter you can find at flower/vase stores but are expensive and then you have to cut the bottom off.......or get one of those pyrex bakeround things but can only do a 600 or a 400 in em and no MH bulbs.....have fun....somoz
http://www.nationalgardenwholesale.com/detail_lighting.php?id=04_RF&prod=1353
just me two cents but 6" diamter you can find at flower/vase stores but are expensive and then you have to cut the bottom off.......or get one of those pyrex bakeround things but can only do a 600 or a 400 in em and no MH bulbs.....have fun....somoz
Tokin White Guy
Member
ive seen em on ebay for 100...still way overpriced (like alot of the high-end shit in this field) tho if u ask me
admiralcornport
Active member
somoz said:
Yeah! these prices seem reasonable... NOT
#900385 Sun System® 1 400 Watt HPS Super Sun Reflector $ 349.95 Each
Tokin White Guy
Member
hah, yeah exactly...DIY and you can have just as good quality for less than half that
sweet that they can't even spell mogul right with such backstabbing, assraping prices
sweet that they can't even spell mogul right with such backstabbing, assraping prices
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it's more fun to DIY and also, 150.00 is heavy coin for some growers, especially first-timers like me . i started in on this thinking i was going to get up and growing for the price of a couple of flouresecnt fixtures ... DOH !
Go to Michael's or Hobby Lobby (or whatever chain arts and crafts store is near you) and ask for a Hurricane Chimney. Costs about $6.
Then grab a 4" to 6" reducer from Home Depot or Lowes for another $7. While you're there, grab some copper pipe strapping for an extra $2.
Go home.
Attatch mogul socket to pipestrapping with the socket mounting screws. Attatch pipe strapping to large end of reducer with your preferred method (I used 1250 psi 60 second epoxy from Wal-Mart - $3). Attatch Hurricane Shade to small end of reducer with aluminum duct tape. At least that's what I used, use what you'd like.
Attatch 6" ducting to reducer, screw in bulb. Turn on fan. Turn on light.
Total - $18
Going from 120F to 72F - Priceless.
For reference, those are 1kw lights. I have two plants currently that are within 3" of the cool tube with no burning.
'Course, it's your money :wink:
Then grab a 4" to 6" reducer from Home Depot or Lowes for another $7. While you're there, grab some copper pipe strapping for an extra $2.
Go home.
Attatch mogul socket to pipestrapping with the socket mounting screws. Attatch pipe strapping to large end of reducer with your preferred method (I used 1250 psi 60 second epoxy from Wal-Mart - $3). Attatch Hurricane Shade to small end of reducer with aluminum duct tape. At least that's what I used, use what you'd like.
Attatch 6" ducting to reducer, screw in bulb. Turn on fan. Turn on light.
Total - $18
Going from 120F to 72F - Priceless.
For reference, those are 1kw lights. I have two plants currently that are within 3" of the cool tube with no burning.
'Course, it's your money :wink:
Sauce
Active member
Here's something a guy on OG reminded me of that I'll share with you:
Glass will cut down 6% of the light that goes through it. If the reflector is on the outside of the glass, the light must path through the glass (6%), hit the relector, bounce back through the glass (6% of that), and then through the other side (6% of that). If the reflector is placed inside the glass, it only must pass through the glass one. It will still work fine with the reflector on the outside, but you will be cutting down a decent chunk of the available light if the relfector is on the outside.
If you can get the reflector inside the glass. With an air cooled hood this isn't a problem, but with cool tubes it can be a little more challenging.
Hope this helps.
Glass will cut down 6% of the light that goes through it. If the reflector is on the outside of the glass, the light must path through the glass (6%), hit the relector, bounce back through the glass (6% of that), and then through the other side (6% of that). If the reflector is placed inside the glass, it only must pass through the glass one. It will still work fine with the reflector on the outside, but you will be cutting down a decent chunk of the available light if the relfector is on the outside.
If you can get the reflector inside the glass. With an air cooled hood this isn't a problem, but with cool tubes it can be a little more challenging.
Hope this helps.
bostrom155
Active member
Yea it's fun to get into your grow
G
Guest
^^^^^^^^Great job on this thread you guys!!!!!!! 
Bh
Bh
ickster
Member
I found 2 large glass candle tubes at good will. Paid six bucks each. The glass was so thin, I broke one while assembling it. Put a 5" 110v comp. fan on a 6' pipe and a 4' vent on the other end with a reducer. My buddy is using it on his 1000w (in the hood) and it has been working well for several weeks now. Home built is the way to go!!!
I also made this one for 2 150w bulbs
My bud has that one too! What a pal I am!
I also made this one for 2 150w bulbs
My bud has that one too! What a pal I am!
Undrgrnd Armory
Member
Awesome thread. I been searching in vain for the proper size tubes. Thank you.
