The smallest, lightest, quietest, most efficient, most powerful fan. Period!

[queequeg152]

axial fans = almost 0 static pressure but huge cfms.

mixed flow = some static pressure...at moderate to low cfms.

centrifugal backwards swept = moderate static pressure at low-medium cfms.

centrifugal with radial blades = moderate to high static pressure at very cfms.

with forward swept blades = high to very high static pressures at low to very low cfms.

oh a per hp basis the above is generally true.

you need to identify your static pressure needs, THEN find a fan of the appropriate type.

high bypass mixed flow fans are good up to .25 inches and no more imo.

above that you should look at centrifugal blowers mounted inside MDF or plywood boxes. if you need thousands of cfm at high static pressures, look into modular air handlers for HVAC equipment.

 

[Dog Star]

Ola Snook,kind regards man..

here is a link for a model S&P 1000 TD http://www.solerpalau.com/td-1000-200-silent-230v-50.html

Where did you read those data you talking about??

Mine pulls constantly,have inlet of 560 cubic meters and a fan still made good negative pressure over those inlet so i dont get why you think that fan loose half of power..

or did i get wrong your post??

And a 1000 TD model is a 1000 cubic meters per hour.


Looks like Galactica ship compared to other models on market and it pulls
like a bull... even after he falls and i breake bad his plastic overwrap cassings..
but a mechanic parts stays cool and he works like nothing happends...

G-Shock proof for sure.

Will never again use any other fan..,whisper quiet compared to others and that
1000 model is biggest one in a group... so other smaller are even more quiet..
and cheaper..

 

[Huckster79]

Put those things back in shipping boxes cut holes for intake and exhaust, hook up a piece of solid duct on either side, fill that box up w spray foam! After that I wrapped box w foil styrofoam and taped up w metallic pleuenem tape and looks profesional. Cut sound way down, won't overheat centrifugal fan as its motor is inline with air flow. No matter how quiet fan is this will make it quieter...

 

[Snook]

Ola Snook,kind regards man..

here is a link for a model S&P 1000 TD http://www.solerpalau.com/td-1000-200-silent-230v-50.html

Where did you read those data you talking about??

Mine pulls constantly,have inlet of 560 cubic meters and a fan still made good negative pressure over those inlet so i dont get why you think that fan loose half of power..

or did i get wrong your post??

And a 1000 TD model is a 1000 cubic meters per hour.


Looks like Galactica ship compared to other models on market and it pulls
like a bull... even after he falls and i breake bad his plastic overwrap cassings..
but a mechanic parts stays cool and he works like nothing happends...

G-Shock proof for sure.

Will never again use any other fan..,whisper quiet compared to others and that
1000 model is biggest one in a group... so other smaller are even more quiet..
and cheaper..

thanks for the link DS . I was looking at the sheets on static pressure.. was cutting staic pressure (snook logic here) at 1" by 50% or more.. but I do not know exactly what i'm talking about. going on to your link, I forget youre in Australia, 230v50.. I typically read you saying you cant always get what you want<sounds like a good title for a song. don't see a 120v model at that cuft requirement.. I go look some more... tks.. I like the box idea huckster.


sorry for the hijack scrappy...

 

[Huckster79]

Thanks, it really helped. I didn't buy super expensive so I'm sure mine was noisier than yours. But even if yours is quieter it probably would take it down another notch. hung it by bungies too to isolate the vibration further.

 

[TreehouseJ]

Put those things back in shipping boxes cut holes for intake and exhaust, hook up a piece of solid duct on either side, fill that box up w spray foam! After that I wrapped box w foil styrofoam and taped up w metallic pleuenem tape and looks profesional. Cut sound way down, won't overheat centrifugal fan as its motor is inline with air flow. No matter how quiet fan is this will make it quieter...

Sounds.. too good to be true. I want to go and do this right right now, but I am still not 100% convinced that it's safe to insulate all the electrical components. Why doesn't everybody do this? Did Huckster just reinvent the wheel? Can anybody else verify that this is a safe practice? (Sorry Huckster, I'm the super skeptic/paranoid type.)

 

[Snook]

I donno but if it does work and I will try it, I'll box up the whole run of ducting to the ceiling. not worried about the electrics inside the fan, bungees are good even if youre not going to boxitup.


EDIT: over thinking this idea, probably a 6" duct (hard) inside an 8" hard duct and crazy foam the in between ?
and obtaining quiet is only because I'm inan non mmj state...

 

[Intimea]

Sounds.. too good to be true. I want to go and do this right right now, but I am still not 100% convinced that it's safe to insulate all the electrical components. Why doesn't everybody do this? Did Huckster just reinvent the wheel? Can anybody else verify that this is a safe practice? (Sorry Huckster, I'm the super skeptic/paranoid type.)

This is a very safe way to reduce the noise...here it's my centrifugal insulated in a plastic pot

 

[Snook]

axial fans = almost 0 static pressure but huge cfms.

mixed flow = some static pressure...at moderate to low cfms.

centrifugal backwards swept = moderate static pressure at low-medium cfms.

centrifugal with radial blades = moderate to high static pressure at very cfms.

with forward swept blades = high to very high static pressures at low to very low cfms.

oh a per hp basis the above is generally true.

you need to identify your static pressure needs, THEN find a fan of the appropriate type.

high bypass mixed flow fans are good up to .25 inches and no more imo.

above that you should look at centrifugal blowers mounted inside MDF or plywood boxes. if you need thousands of cfm at high static pressures, look into modular air handlers for HVAC equipment.

queequeg thanks for all this... is there a US version of what dog star is showin us ?? OTOH, I like scoobys fan too and available in the US.

 

[TreehouseJ]

This is a very safe way to reduce the noise...here it's my centrifugal insulated in a plastic pot
View Image

Just to verify, you filled that bucket with spray foam top to bottom, completely covering the exterior of your centrifugal? (Sry)

 

[Intimea]

Just to verify, you filled that bucket with spray foam top to bottom, completely covering the exterior of your centrifugal? (Sry)

You can use whatever you like, just keep in mind that for an effective soundproofing, you must alternate layers of different density materials.

I have used sound-absorbing foam

 

[Huckster79]

Sounds.. too good to be true. I want to go and do this right right now, but I am still not 100% convinced that it's safe to insulate all the electrical components. Why doesn't everybody do this? Did Huckster just reinvent the wheel? Can anybody else verify that this is a safe practice? (Sorry Huckster, I'm the super skeptic/paranoid type.)

No offense taken, I would verify too, I didn't invent idea, others did and I found it on here or just googling. I'll get you a pic of mine too.

The reason it's okay to insulate is due too the fan motor being housed inside the centrifugal fan, so it has just as much cooling with or without the foam box as its inline with therapy flow inside the fan. I like the idea of doing duct work, or portion of it in it too, I need some flexibility as I raise and lower my light...

 

[TreehouseJ]

No offense taken, I would verify too, I didn't invent idea, others did and I found it on here or just googling. I'll get you a pic of mine too.

I've seen people building boxes out of plywood or mdf and stuffing it with sound proofing material, I've even collected said material and sketched out a housing, but in the end I decided was too big and obtrusive so I just tried to forget about it. I must'a missed this little gem of an idea along the way. Good look.

 

[Snook]

This is a very safe way to reduce the noise...here it's my centrifugal insulated in a plastic pot
View Image

Now heres a good idea... and I have only about 30 buckets on hand waiting for the trash bin... some with allot of holes in them already!


EDIT: all good stuff but this is scrappys thread about that little fan... and allot of it is already in the ventilation 101 thread.. but good ideas to come out in the open again... fukin stoners forget... sometimes..

 

[Scrappy-doo]

I don't mind. Silence is important and I wasn't planning on taking the thread much further with the hyper fan. Just spreading some info on the best I've come across.

I've used a box stuffed with insulation. Works great! Insulated duct is extremely helpful as well.

 

[Snook]

I don't mind. Silence is important and I wasn't planning on taking the thread much further with the hyper fan. Just spreading some info on the best I've come across.

I've used a box stuffed with insulation. Works great! Insulated duct is extremely helpful as well.

are you still good with this fan SD?? re you going to put it ina can/box w cfoam?? should b undetectable in the next room..

 

[Dr.Suess]

I'm no audible expert.....but I'm pretty sure a 10 decible increase is twice as loud. I may need to play with the locations of the mufflers to see how it affects the decibels. Again, I have never tried metering the decibels till now. Just a newbie.

Most manufactures take their decibel reading from a certain distance like 3m

I am an expert, and 6db is twice as loud. So 10db is a little more than 2.5 times louder.

".

An ex-spurt is essentially a drip under pressure. Lolz

The sound intensity increases tenfold or multiplies by 10 with every 10db increase

Just trying to get my post count up, not being a smartass

 

[hyposomniac]

This link and chart can be helpful
http://www.gcaudio.com/resources/howtos/voltageloudness.html

 

[Scrappy-doo]

are you still good with this fan SD?? re you going to put it ina can/box w cfoam?? should b undetectable in the next room..

Yeah man I love this fan! I don't need to put it in a box, already completely silent with the door closed. If I had to raise the speed I would need to do something like that but for my needs having it dimmed all the way down it's still plenty powerful.

I'm considering purchasing the stealth version as well just out of curiousity. Already planning to trade in all my other fans to the hydro shop for store credit. I won't ever use them again. This one is by far my favorite ever.

 

[AppliedScience]

You can use whatever you like, just keep in mind that for an effective soundproofing, you must alternate layers of different density materials.

I have used sound-absorbing foam

View Image

I used to be a sound engineer.

Alternating layers of different materials doesn't increase its effectiveness. The thickness of the sound insulating material is the only thing that matters, one material or not. Of course using a uniform material with the best sound insulating properties is best.

FYI the picture of foam you posted is more for attenuating high frequencies which probably still works well for this application, but may not be the best. Professional recording studios typically use rigid rockwool/fiberglass for building rooms and soundproof boxes to record guitar cabs cranked to 11 while being right next to them.