Question Regarding Inline Fan / Filter and Speed Control - Page 2 - Cannabis Growing Questions - International Cannagraphic Magazine Forums

Vanilla Phoenix · 03-03-2018, 05:29 AM

Quote:

Originally Posted by Americangrower

You could always push air through filter and leave fan in box to help with noise.

I push thru filter and it works good...same as sucking thru.

Americangrower · 03-03-2018, 05:34 AM

Quote:

Originally Posted by Vanilla Phoenix

I push thru filter and it works good...same as sucking thru.

so do I..

devo6786 · 03-03-2018, 07:39 AM

ok cool. so in that case fan inside -> duct to outside -> filter outside?

Would Fan inside -> Muffler -> duct to outside -> filter outside be correct?

Americangrower · 03-03-2018, 10:09 PM

Quote:

Originally Posted by devo6786

ok cool. so in that case fan inside -> duct to outside -> filter outside?

Would Fan inside -> Muffler -> duct to outside -> filter outside be correct?

I don't use a muffler, but I would connect fan to inside top of box with muffler duct and filter outside. That way fan draws the hottest air.

Trich_Tyson · 03-03-2018, 10:32 PM

Air is pulled thru my filter in my big area, but in my tents I️ prefer to push into the filter. Primarily to save space. But the benefits to me are also.. any leaks leading up to the fan will not be an issue, stank air will be pulled into the fan and then pushed thru filtration. But if there is no filter on the other side of the fan that air is getting blown out full of stank. If there is only one piece of duct connected btw the fan and filter at the end you run very little risk of smelly air leaking before it hits the filter

Whereas if you pull thru a filter, then have a light btw filter and fan, or any other connection point, there is a chance that stank air will be pulled in and mixed with clean air. To be dumped out of the area.

I’ve also completely silenced some fairly loud 8inch fans with a rubbermaid tote, a sheet and packing peanuts.. roxul insulation would be even better. Always good to over size and dial down. Which is sounds like you are doing

Dropped Cat · 03-04-2018, 03:43 AM

Here's my first cabinet:

A bit smaller than your build, but the thing grew good buds.

The sketch up shows the fan/muffler stack, which I am
able to conceal in the wall behind the cab, as I do now
with the larger cab I built.

Just a thought, good thread.

devo6786 · 03-04-2018, 04:10 AM

Yea thats kind of what Im thinking Dropped-cat

Filter in the cab-> ducting out of cab -> fan -> Muffler

But now Im kind of debating pushing through the filter, essentially opposite of above

Fan in cab -> Ducting out of cab -> Filter on the outside.

If I went that route, could a muffler still be attached to the fan, would it have to be in the cab as well to be effective? would it make the filter less effective since Im pushing through it instead of pulling?

Dropped Cat · 03-04-2018, 04:21 AM

Muffler on the exit or output of the fan for me.

Bench test the rig prior to installation for confirmation.

devo6786 · 03-04-2018, 04:59 AM

Ok, thats what I thought.

Would one of the cheap ones off amazon work, or DIY or just bite the bullet and spend the additional 75-100$ for a known brand?

Dropped Cat · 03-05-2018, 02:29 AM

Here is a post from an icmag guy, inspired my build:

If you have tin snips and are somewhat handy you could save some coin.

Honestly I guess any of the commercially available mufflers will
reduce the whoosh, the longer the better.

03-03-2018, 10:32 PM	#15
Trich_Tyson Senior Member Join Date: Sep 2015 Posts: 1,042	Air is pulled thru my filter in my big area, but in my tents I️ prefer to push into the filter. Primarily to save space. But the benefits to me are also.. any leaks leading up to the fan will not be an issue, stank air will be pulled into the fan and then pushed thru filtration. But if there is no filter on the other side of the fan that air is getting blown out full of stank. If there is only one piece of duct connected btw the fan and filter at the end you run very little risk of smelly air leaking before it hits the filter Whereas if you pull thru a filter, then have a light btw filter and fan, or any other connection point, there is a chance that stank air will be pulled in and mixed with clean air. To be dumped out of the area. I’ve also completely silenced some fairly loud 8inch fans with a rubbermaid tote, a sheet and packing peanuts.. roxul insulation would be even better. Always good to over size and dial down. Which is sounds like you are doing __________________ IG: @trich_tyson My Current Thread
	Quote

03-04-2018, 03:43 AM	#16
Dropped Cat Six Gummi Bears and Some Scotch Join Date: Jan 2014 Posts: 2,615	Here's my first cabinet: A bit smaller than your build, but the thing grew good buds. The sketch up shows the fan/muffler stack, which I am able to conceal in the wall behind the cab, as I do now with the larger cab I built. Just a thought, good thread. __________________ "So we're just done with phrasing, right, that's not a thing anymore?."
	Quote 1 members found this post helpful.

03-04-2018, 04:10 AM	#17
devo6786 Newbie Join Date: Feb 2018 Posts: 40	Yea thats kind of what Im thinking Dropped-cat Filter in the cab-> ducting out of cab -> fan -> Muffler But now Im kind of debating pushing through the filter, essentially opposite of above Fan in cab -> Ducting out of cab -> Filter on the outside. If I went that route, could a muffler still be attached to the fan, would it have to be in the cab as well to be effective? would it make the filter less effective since Im pushing through it instead of pulling?
	Quote 1 members found this post helpful.

03-04-2018, 04:21 AM	#18
Dropped Cat Six Gummi Bears and Some Scotch Join Date: Jan 2014 Posts: 2,615	Muffler on the exit or output of the fan for me. Bench test the rig prior to installation for confirmation. __________________ "So we're just done with phrasing, right, that's not a thing anymore?."
	Quote

03-05-2018, 02:29 AM	#20
Dropped Cat Six Gummi Bears and Some Scotch Join Date: Jan 2014 Posts: 2,615	Here is a post from an icmag guy, inspired my build: If you have tin snips and are somewhat handy you could save some coin. Honestly I guess any of the commercially available mufflers will reduce the whoosh, the longer the better. __________________ "So we're just done with phrasing, right, that's not a thing anymore?."
	Quote

03-03-2018, 07:39 AM	#13
devo6786 Newbie Join Date: Feb 2018 Posts: 40	ok cool. so in that case fan inside -> duct to outside -> filter outside? Would Fan inside -> Muffler -> duct to outside -> filter outside be correct?
	Quote

03-04-2018, 04:59 AM	#19
devo6786 Newbie Join Date: Feb 2018 Posts: 40	Ok, thats what I thought. Would one of the cheap ones off amazon work, or DIY or just bite the bullet and spend the additional 75-100$ for a known brand?
	Quote