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Hey! INSULATED ducting or NON INSULATED ducting??? Does it matter???

pftek

pftek

Member
Hey does it matter which ducting I use? I bought both.

Got 2 10" fans.

I bought 8" insulated ducting. 8" non insulated ducting. as well as 10" ducting insulated and 10" non insulated. I can't just use all of one cause 8" lights but 10" fans.

Now do I run all non insulated? all insulated? some non and some insulated? Does it make any difference? Should I only use it near the fan?
 
C

Cheeb

I like to go insulated for noise control - makes things much quieter.

If you go insulated you MUST tape your outer sleeve tight to prevent fiberglass "dust" from falling on your buds. (referring to insulted ducting which has the pink stuff covered by a black plastic outer layer)

1st time installing insulated ducting I didnt tape things up well enough and would notice this "dust" falling from the ends of my reflectors when bumped. Not cool at all.
 
Kingsley Zissou

Kingsley Zissou

Member
I started with the non insulated because I'm cheap. I switched to insulated after reading that it would reduce heat a couple degrees and cut down on sound.

I'll never go cheap again. Insulated is the way to go for me.
 
M

mars_to_uranus

New member
In my location insulated ducting is usually called acoustic ducting. As the others have said above it is much quieter than regular ducting. If ducting is going through a wall or is lying on a solid structure it needs to be acoustic ducting to prevent the fan noise/vibration travelling down the ducting into the surroundings.
 
C

Cheeb

btw,

the silver insulated ducting from HD or Lowes is much nicer then the black coated stuff.

price difference was a lot at one location, but same price as the black at the other location (cant remember which) , but 6"x25' should be around 25-30 bucks.
 
Mr. Stinky

Mr. Stinky

Member
i use 8" insulated from home depot (31 bucks for 25 feet) on 6" inlines. noize is literally zero outside thru about 7 feet of duct. always try to use bigger duct than the fan calls for, because it quiets it down alot. an 8" duct has double the volume of 6", so the air moves much slower. slow air=quiet air :)
 
D

dtfsux

Member
i have always used non insulated. Once in a 15k room while dialing some stuff in I had condensation but after installing the big DH, and making some other changes, that was not an issue anymore.

The points about using insulated seem valid so that may be a good way to go
 
S

shitabyss

Mr. Stinky said:
i use 8" insulated from home depot (31 bucks for 25 feet) on 6" inlines. noize is literally zero outside thru about 7 feet of duct. always try to use bigger duct than the fan calls for, because it quiets it down alot. an 8" duct has double the volume of 6", so the air moves much slower. slow air=quiet air :)
Click to expand...

That's good to hear, I was thinking about going the same route..

How do you go about connecting 8" insulated ducting to a 6" exhaust fan though?

I'm going to be running a 6" Vortex 445cfm in a 3x4x7 sunhut with a speed controller to reduce noise. It's in an apartment so I need to keep noise to a minimum..

The 6" Insulated Ducting at my local HD is only rated for 100cfm.. I was thinking I cannot get this now because of the strain it would put on my fan/airflow...

Looks like I'll get the 8" and see if it fits snug to the tents exhaust ports.
 
sanjuan

sanjuan

Member
shitabyss said:
How do you go about connecting 8" insulated ducting to a 6" exhaust fan though?
. . . Looks like I'll get the 8" and see if it fits snug to the tents exhaust ports.
Click to expand...
The duct needs to fit inside your tent portal (at least I've always seen it that way).
A duct reducer makes the transition between diameters:
picture.php
 
S

shitabyss

Dohh!! Totally forgot about reducers :X Thanks a bunch!

Carbon filter/6" Vortex/8"-6" reducer/8" ducting/exhaust port. Should be good eh?

Just gotta find out if the Sun Hut Silver 2x4x7 has the ability to support 8" duct. If it's only 6", I think I'll cut a custom hole and use my trusty duct tape :p.
 
G

greenmatter

remember the insulation is there more for the heat than the sound. any part of the duct that is inside your grow area after a heat source should be insulated so the heat can not bleed back into the room. on the other side if your grow area itself is much hotter than your intake air you will get some cooling effect by running uninsulated up to the first heat source. the rigid aluminum stuff (not the dryer/slinky stuff) works well for this. REMEMBER that water will condense on anything cold in a warm room so you have to account for this. hope this helps
 
N

noreason

Natural born Grower
ICMag Donor
Veteran
I used a lot of times insulated ducts and they works great to reduce noise.
At now I have no need to use them because noise and temps are not a problem and I think is more convenient to use non insulated.They take less space,are more plain inside so the flow is better and easily to mount and un-mount on cooltube or extractor,so less time to clean.They're also cheaper.

Ps: to lower noise level you can box the extractor yourself.
The more straight is the duct the less pressure drop along to less noise.
 
A

ak-51

For just reducing noise, slipping 8" duct over my 6" duct was effective. The first 2-3 ft of duct on either side of the fan seemed to be where most of the noise was coming from, I just covered that area. Reduced the noise considerably. I didn't have a problem with temps before so I can't speak to that.

I have never used real insulated ducting.
 
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