how to build a cool tube? - Growroom Lighting - International Cannagraphic Magazine Forums

berbes · 04-28-2006, 07:23 AM

i guess the question really is, where do i find a 6" diameter glass tube? i know it's been done, but how?

thanks!

berbes

somoz · 04-28-2006, 07:29 AM

why bother with all the fuss when you can get one prewired and fabricated for under 150........................... .....

https://www.nationalgardenwholesale.c...4_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 · 04-28-2006, 08:00 AM

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 · 04-28-2006, 08:07 AM

Quote:

Originally Posted by somoz

why bother with all the fuss when you can get one prewired and fabricated for under 150........................... .....

https://www.nationalgardenwholesale.c...4_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

Yeah! these prices seem reasonable... NOT

#900385 Sun System® 1 400 Watt HPS Super Sun Reflector $ 349.95 Each

Tokin White Guy · 04-28-2006, 08:11 AM

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

green_grow · 04-28-2006, 08:50 AM

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 !

NiteTiger · 04-28-2006, 09:03 AM

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:

Sauce · 04-28-2006, 01:51 PM

I did something similar to Tiger:

NiteTiger · 04-28-2006, 05:08 PM

Quote:

Originally Posted by NiteTiger

For reference, those are 1kw lights. I have two plants currently that are within 3" of the cool tube with no burning.

I love my cool tubes!

Sauce · 04-29-2006, 06:54 AM

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.

04-28-2006, 07:23 AM	#1
berbes Member Join Date: Feb 2006 Posts: 123	how to build a cool tube? i guess the question really is, where do i find a 6" diameter glass tube? i know it's been done, but how? thanks! berbes __________________ there are no stupid questions, just stupid people
	Quote

04-28-2006, 08:00 AM	#3
Tokin White Guy Fluffy Bunny Feet Join Date: Feb 2006 Location: Dark Side of the Moon Posts: 94	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 __________________ The best-kept secret in ventilation (pun intended)
	Quote

04-28-2006, 08:11 AM	#5
Tokin White Guy Fluffy Bunny Feet Join Date: Feb 2006 Location: Dark Side of the Moon Posts: 94	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 __________________ The best-kept secret in ventilation (pun intended) Last edited by Tokin White Guy; 04-28-2006 at 08:13 AM..
	Quote

04-28-2006, 09:03 AM	#7
NiteTiger Tiger, Tiger, burning bright... Join Date: May 2005 Posts: 4,256	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: __________________ *Remember - Every 'elite' started off as someone's bagseed* kingjobber - This hash just uncentered my chi Growing cannabis is only as complicated and expensive as you want it to be. Current Grow: Knowledge Guides: Diatomaceous Earth - The Best Pesticide You've Never Heard Of Pontiac's DIY Link-O-Rama Unofficial Glossary for New Growers The Water Cure- How, when, and why How to remove 'HPS Orange' quick and easy!
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04-28-2006, 01:51 PM	#8
Sauce Member Join Date: Feb 2006 Posts: 713	I did something similar to Tiger: __________________ Recovered Overgrow GrowFAQ's CannaStats Info OG Refugee :
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04-28-2006, 07:29 AM	#2
somoz Senior Member Join Date: Jan 2006 Location: basements barns and fields Posts: 1,128	why bother with all the fuss when you can get one prewired and fabricated for under 150........................... ..... https://www.nationalgardenwholesale.c...4_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
	Quote

04-28-2006, 08:50 AM	#6
green_grow Senior Member Join Date: Mar 2006 Posts: 1,162	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 !
	Quote

04-29-2006, 06:54 AM	#10
Sauce Member Join Date: Feb 2006 Posts: 713	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. __________________ Recovered Overgrow GrowFAQ's CannaStats Info OG Refugee :
	Quote