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Clean, Easy Cool Tube Tutorial

NightFire

Member
An MH lamp is usually to fat to fit inside the bake-a-round.

Running a 1k HPS with a cool tube and a 8" vortex in a 5'x5'x5' area (125 cu.ft.), I had no heat issues.

I have also run a 600 HPS in a 4x4x2 (32 cu.ft.) area with minor heat issues, without a cool tube.
 

Bedlam

Member
hey man, i'm trying to do this DIY, along with quazi's convert-150w-security-light to remote balast mod. eventually, when next year starts up, i want to switch to a 400w light. would i have to prepare a different socket for the more powerful light? is there a way to make this less permanent so i could do that? thanks.
 

green_grow

Active member
Veteran
if your 150 uses a mogul base, then any other wattage hps bulb will fit in it.
mogul base = bigger threads
standard base = smaller threads (the same size that a regular incandescent or cfl screws into.
i sure hope i am making sense.
 

beej

Member
Thanks for the tut lemon! I've been using this setup for about 8 months and it works great!
 

jarff

Member
I bought about 30 of these Pyrex tubes several yrs ago with the intention of building cool tubes but alas they are still in the closet...I must put themon Ebay ...or ....build some cool tubes with the great tutorial I just read...great stuff and cheap to build..
jarff
 
LEMON!!! You are the shit. How creative. I know you didn't invent it, but dude, that came out incredible. I'm gonna have to do this with my next setup in Jan. I can't tell you enough how much people amaze me on this site. We have people that can do shit like this and a fucking numbskull for a president that can't even cover up a war. We just need to have growers run the country.
 

Captain Parker

New member
I found one of these bake tubes at a second hand store. As soon as I seen it and the words, "Pyrex" I knew what *I* was going to use it for. I had wanted to build a cool tube for awhile, but could never find hurricane lamps at reasonable prices (I'm cheap).

I seen the bake tube kit, and figured I could make various conversions from the hurricane lamp cool tube DIY write ups. But to my surprise, you already had one specifically for the pyrex tube I got.
I'm going to use my 400w HPS flowering for this (I still use daylight CFL's for veggie time with great success).

Anyways, I wanted to send you a whole bag of kudos and good karma for this write-up, thank you.

BTW, the Pyrex Bake tube (same as yours 3 3/4 O.D.) I found at the second hand store for only $1 (I did mention I was cheap). Only one they had, I may never see one again in my life - hope I never break it.
 
S

SmokeToLive

This is pretty awesome dude. I'm going to do this. :) Already ordered my Pyrex tube.
 
Man, you just saved me $100. I don't know how I've managed to miss this thread...

I found a bake-a-round at a thrift store for FOUR BUCKS!

+rep for you, Lemon.
 
S

SmokeToLive

Mine wasn't quite the same as the project above, but I had to make due with insufficient parts. However, it still turned out very well. :D

 

KickNader

Member
to anyone who accually has this how small of a space could you put it in? meaning i have a small box what is the length with the bend on the ducting? should fit im just making sure :))
 

forester

Member
Any ideas of substitutes for Bake-a-rounds? Getting hard to come by.

Or perhaps ways to modufy laboratory beakers etc?
 
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