Hey,
basically i am going to make a cool tube soon and i was wondering if it has to be pyrex glass tubing to withstand the heat...or could i use n ordinary glass vase with the end cut off with a tile cutter?

cheers

Thats hard to answer because it would depend on the quality of glass/thickness of the vase, it might not be pyrex, but it might be tempered or not.

It might work, it might work for ever, it might explode after 2 weeks, the fact is if your running any HID lighting theres gonna be a lot of heat, and when the light comes off if your fans are running the glass will cool fast and if its cheap glass it will shatter.

i cut a 4 inch flower vase that was a 1/4 thick and about 16 inches long get 2 4 to 6 inch vent pipe adapters and their u go minew works killer i can touch the glass

cheers lol. thats what i will be doing tonite then . whats your fan rated at thats pulling the air out

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Signed, Dr. Dawson.

they make a tube for making bread called the bakearound,saw a diy on 420 about it.You failed to mention if its a 1000 or what size bulb i know i was f around with just a 400 and the glass off an old kerosene lantern and it burnt the chiot out of me.

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http://www.rollitup.org/indoor-growi...icy-fruit.html

mines only a 400 watt. ithink i need to invest in a new fan ....

__________________
Signed, Dr. Dawson.

the fan i got on their is a 270 cfm but i think i could go bigger and get a remote axial fan it would be much better for passing through the carbon filter

you can order pired tubes in any size you want but a cooltube is cheap

also a bake a round is small

Ive used the good ol hurricane tubes from Wal-mart. They are 1/8" thick glass. not thick at all; but they are cost effective. As long as you dont run the bulbs with no fans while splashing water on them you will be fine with 3mm glass. (1/8 inch)

The bulbs themselves are 3mm plain glass. not tempered. They would respond similar to the hurricane tubes in that it would take RAPID cooling like the addition of water to make tham crack. air cooling cannot achieve this...ever. (unless there is a fracture already and you have north pole winds directed at your overheating, fractured lamps...even then...k im stoned and rambling)

i was at ikea and they had a big ass Vase for 24 bucks with 1/4 inch thick glass and it was at least 8 inch tube and at least 24 inches tall or longer