Micro Muffler **DIY** - Micro Grows - International Cannagraphic Magazine Forums

06-15-2009, 02:07 AM

My new cab will be located a few feet from where I lay my head every night, so I need it to be very quiet. But the fan I'm using is a 197cfm S&P and, although it is relatively silent compared to inline fans, I would like it to be a little quieter still. Most of the noise it makes is from the air rushing around, so a muffler should help a lot. But I also needed it to be micro-sized to fin in my cab, hence the MICRO MUFFLER!

First I built a box the size of a shoe box around the exhaust vent. I used hard-board and aluminum foil tape to construct it.

I lined the inside walls with fiberglass insulation, the type that is designed to be wrapped around water pipes.

I then put the fiberglass around the floor of the muffler and exhaust port. I also put some foam around hole the fan will go into to reduce vibrations.

I turned on the fan and, "WOAH...I DON'T HEAR HARDLY ANYTHING!!" I was really surprised at how much it hushed the fan down and how much air was rushing out of the exhaust port. Its about as loud as a noisy desktop PC and I have no complaints about that

.

I'm really satisfied with the end result and I hope this tutorial can help others out there achieve the same. If you have any questions, I'm all ears!

J-Blunt · 06-15-2009, 04:18 AM

thats hella clean-looking man

i wish i was that handy, my shit always ends up messy

hayze · 06-15-2009, 05:35 AM

Looks good. How big is that cab.

06-15-2009, 06:26 AM

Glad you guys like it!

Quote:

Originally Posted by hayze

Looks good. How big is that cab.

about 3 sqft I think, but only maybe 2 sqft of growing space. I just finished building it today after about 4 days of hard work.

I'm going to add a carbon scrubber later on. That will slow air flow down a bit, but I can afford it. My fan is gushing out plenty of air on the lower speed setting, and I'm thinking about getting a speed controller to turn it down even more! S&P fans are da shit.

buck912 · 06-15-2009, 06:56 AM

Very nice. I want to build my own. Thanks for posting.

Do you think there will be any problem with hairs of the fiberglass being blown out into your room?

Dr 4 four · 06-15-2009, 09:44 AM

Nice build Cozy. Great to see your new cab. Good idea using hard-board. It will be interesting to see how much quieter it will be once your carbon scrubbers installed.

hayze · 06-15-2009, 02:34 PM

If you put the scrubber on the exhaust side it would probably be silent. Like buck said I wonder if loose fiberglass will be an issue.

0p0rat0r · 06-15-2009, 05:20 PM

Cool idea. Nice little cab you got there. Is that for flowering or vegging?

I had a cab running a 105 cfm elicent inline fan that had the air gushing out noise and when I moved the carbon filter so air was being pushed through it rather than pulled through it I found it did indeed act like a muffler.

06-15-2009, 05:38 PM

No problems so far with fiberglass stands getting blown around. Its pretty well matted, even when I was cutting it up it held together. I didn't even use gloves and my hands where not itchy at all.

oporator, it's for both I guess.

BigBlack81 · 06-15-2009, 08:44 PM

Cozy, I beg humbly. Please show us a thread with you mounting a scrubber to this exact setup as it's just what I'd like to do in my cab.

Much thanks. Your ideas are really well thought out.

06-15-2009, 02:07 AM	#1
Cozy Amnesia Guest Posts: n/a	Micro Muffler DIY My new cab will be located a few feet from where I lay my head every night, so I need it to be very quiet. But the fan I'm using is a 197cfm S&P and, although it is relatively silent compared to inline fans, I would like it to be a little quieter still. Most of the noise it makes is from the air rushing around, so a muffler should help a lot. But I also needed it to be micro-sized to fin in my cab, hence the MICRO MUFFLER! First I built a box the size of a shoe box around the exhaust vent. I used hard-board and aluminum foil tape to construct it. I lined the inside walls with fiberglass insulation, the type that is designed to be wrapped around water pipes. I then put the fiberglass around the floor of the muffler and exhaust port. I also put some foam around hole the fan will go into to reduce vibrations. I turned on the fan and, "WOAH...I DON'T HEAR HARDLY ANYTHING!!" I was really surprised at how much it hushed the fan down and how much air was rushing out of the exhaust port. Its about as loud as a noisy desktop PC and I have no complaints about that . I'm really satisfied with the end result and I hope this tutorial can help others out there achieve the same. If you have any questions, I'm all ears!
	Quote

06-15-2009, 04:18 AM	#2
J-Blunt Member Join Date: Jan 2009 Posts: 107	thats hella clean-looking man i wish i was that handy, my shit always ends up messy
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06-15-2009, 05:35 AM	#3
hayze New Member Join Date: Sep 2008 Location: The Dirty Posts: 8	Looks good. How big is that cab.
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06-15-2009, 06:56 AM	#5
buck912 New Member Join Date: May 2009 Posts: 8	Very nice. I want to build my own. Thanks for posting. Do you think there will be any problem with hairs of the fiberglass being blown out into your room?
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06-15-2009, 09:44 AM	#6
Dr 4 four Member Join Date: Mar 2008 Location: Mt. Akina Posts: 151	Nice build Cozy. Great to see your new cab. Good idea using hard-board. It will be interesting to see how much quieter it will be once your carbon scrubbers installed.
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06-15-2009, 02:34 PM	#7
hayze New Member Join Date: Sep 2008 Location: The Dirty Posts: 8	If you put the scrubber on the exhaust side it would probably be silent. Like buck said I wonder if loose fiberglass will be an issue.
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06-15-2009, 05:20 PM	#8
0p0rat0r Member Join Date: Apr 2006 Posts: 170	Cool idea. Nice little cab you got there. Is that for flowering or vegging? I had a cab running a 105 cfm elicent inline fan that had the air gushing out noise and when I moved the carbon filter so air was being pushed through it rather than pulled through it I found it did indeed act like a muffler.
	Quote

06-15-2009, 05:38 PM	#9
Cozy Amnesia Guest Posts: n/a	No problems so far with fiberglass stands getting blown around. Its pretty well matted, even when I was cutting it up it held together. I didn't even use gloves and my hands where not itchy at all. oporator, it's for both I guess.
	Quote

06-15-2009, 08:44 PM	#10
BigBlack81 Member Join Date: Mar 2007 Posts: 124	Cozy, I beg humbly. Please show us a thread with you mounting a scrubber to this exact setup as it's just what I'd like to do in my cab. Much thanks. Your ideas are really well thought out.
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