600 HPS Cool Tube Grow Light System

[criom]

haha and hed prolly still do a better job then me

[PharmaCan]

I've got my two cooltubes hooked to one 6" vortex inline 470cfm fan. With all the twists and turns and carbon filter, I'm guessing the cfm is down to around 400cfm. The tubes stay cooler than a cfl. I've got one plant touching the cooltube directly under the bulb and it isn't hurting the plant. My fan is on the exhaust side of the tubes - sucking air.

Dayum - why so much for shipping? Where do you live, at the North Pole?

[criom]

damn 150$ for a 6" vortex too...shiot

thats impressive though youve got it cooler then a cfl. so it must be better to have it exhausting away from the socket and over the bulb...

i like in michigan....the cheapest shipping BGH offers is fedex (I HATE FEDEX) for 65$.

i think that may make me buy elsewhere....

[criom]

with the dayton the shipping is 62$ total is 467$.


this doesnt seem like a good deal anymore

[Al B. Fuct]

crap the BGH guy just emailed me back and said the smallest fan i could probably get away with is Dayton 265 cfm 75$

so that brings the total to like 460$....aaaaaaaaahrg

I hate to second guess the guy... but 265cfm is big enough for a 795 cu ft grow op main exhaust fan. Holy moley. What's your cooltube diameter?

[PharmaCan]

I hate to second guess the guy... but 265cfm is big enough for a 795 cu ft grow op main exhaust fan. Holy moley. What's your cooltube diameter?

I'm thinking this same thing. The 6" fan on my system is overkill. I can turn the fan down to 1/2 speed before any noticable rise in temp.

A 4" fan should do the trick for one cool tube.

Don't you have a local Hydro store? A lot of Hydro stores will match online prices.

[Al B. Fuct]

apparantly all cool tubes are 6" in diameter so i was thinking a Suncourt 6" In-line Duct Fan - 300 cfm would do it...

hmm, OK. I'm doing up some DIY cooltubes absed on the Pyrex "Bake-A-Round" heat-tempered glass tubes. They're supposed to be 3.75" OD.

Zandor has a great photoessay here on DIY "Bake-A-Round" cooltubes. I'm liberally thieving from Zandor's bit for my own.

[criom]

please feel free to second guess him

the cooltube diamter is supposedly 6"

im going to be using about 18 feet of ducting all together, without any major bends or angles....so maybe i dont really need a 265cfm....but the entire point of this is to keep that bulb as cool as possible so im not sure what to do

[criom]

i do have a local hydro store but driving there would probably cost just as much in gas $ as it would to have it shipped. their prices arnt so great either and they dont have any cooltubes on the display floor...

but they sell them on their site

[criom]

oh i love the idea of a DIY cooltube but i keep thinking about "what if it falls/breaks/shatters/comes loose" then it would fry all the plants and goodbye sanity




pharmacan whats the cheapest 4" inline fan you would reccomend? all the ones ive looked at are crappy and have to be wired to a cord to even plugin to an outlet...