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Hey guys, big fan of the vibe here...I have been doing some insane research but still have no clear result, as to what path to take.

PROBLEM: I need to get my 30 gpu mining cards out of my house, I live in Florida and heat is not helping with my a.c. and cost.

SOLUTION INTENDED: place rigs in my garage.

I need ideas as to how to vent the rigs in my garage. My issue is garage has no windows, just the garage door. And also my HOA is a b i t c h with doing mods.

I was thinking venting out thru the garage roof but I bet the air coming out will be loud. My neighbors are close. Any ideas?

Pics: https://imgur.com/gallery/Q3UAm

GPU miners shouldn't be that loud.  In the picture at the top of the garage door where the light is coming through, are those panels removable in anyway?  Maybe you could put a vent and some type of fan connected there to pull the air out of the garage.

Or what about making a vent out the roof of the garage? 

I have an office attached to my garage and I setup a gable fan from Amazon to constantly suck the air out of the room so it keeps the air flowing and the hot air is being removed.  (It's not summer here yet, will see how that goes).

Just a thought.

Thanks for the tips :)

GPU miners shouldn't be that loud.  In the picture at the top of the garage door where the light is coming through, are those panels removable in anyway?  They are not loud at all. Its just that if i vent thru the garage door, then that air coming out, whatever healthy cfm (3000 cfm for example) will be a loud enough to echo.


Or what about making a vent out the roof of the garage?  I thought about this. Maybe a fan in the ceiling thru the attic with some gooseneck at the roof. My concern there is that high flow air, once again will be loud and HOA is all over any mod.

I have an office attached to my garage and I setup a gable fan from Amazon to constantly suck the air out of the room so it keeps the air flowing and the hot air is being removed.  (It's not summer here yet, will see how that goes).

I really hope it works well.

I guess it would depend on how big of a vent fan you are using.  I'm using one that pushes 3010 cfm.. It's about 80DB right next to it, but say 10 feet away it's only like 65 db. 

I'm using this one  https://www.amazon.com/dp/B0116TNQJ0/ref=twister_B073ZNGR6S

It draws 250w power when on so not terrible there either and definitely moves some air.

Good luck! let me know what you come up with.

One of the comments on this imgur set:

Don't pay any attention to him. But your house could probably do better with more windows on the side and a roof that extends past the walls. You know, like a normal house roof.

That vent out of your roof on your garage, is that just in an attic above the garage? If so you could just vent directly into the attic and that would work perfect.

i use six attic fans for 200 gpu , my neighbor are closer than urs but my garage
is detached

What size attic fans CFM wise?

1500 cfm each , they use around 260 watts each

noemaly i only ever have 4 on but with comininf spring
ive had to turn all six on which is not ideal.  Next few weeks
ill add ain intake fan 2500 cfm , to bring in outside air , that way the
total air in the garage gets exchanged faster ,

it should reall help impove tempa even further

If you want to vent out through the roof, make sure that there's an opening (air intake) at the lower level of your garage.
GPUs aren't noisy at all (except from Low Quality Heatsink Fans of substandard/old GPUs)

You need a proper airflow:

• Hot Air (Light) - Venting out to the top area
• Cool Air (Heavy) - Intake from the lower area, not necessarily need fans
• Mining Rigs - as low as possible

You don't have to click "Share" images on IMGUR in order to link them here.
I did that once and I got much, much weirder comments from the users.

Get some ventilation in top and bottom of your garage.
Even if it is a couple of small openings on each face of the garage will dramatically improve airflow.

[/quote]

This looks good thanks.

DO you have this fan placed in your ceiling towards the attic and then attic exhausts passively thru a vent?

Or do you have this installed on a wall inside the attic?

How long have you been running your farm?  Just the Winter?

I'm going to be using something like this during the summer to suck hot air out of my mining room from the ceiling into my attic.

https://www.homedepot.com/p/QuietCool-Classic-CL-3100-Advanced-Direct-Drive-Whole-House-Fan-with-Dampers-QC-CL-3100/206047343?MERCH=REC-_-rv_gm_pip_rr-_-206000297-_-206047343-_-N

You're going to want some sort of opening for a fan or multiple fans to bring air into the garage.  Since you don't already have a window there, I'm guessing you'll want to just go as low as you can go.

I have two of these (one for each window) that I'll be pulling air in with.  Not sure if I'm really going to need to use both, but we'll see.

https://www.amazon.com/AirKing-9166-Whole-House-Window/dp/B0007Q3RQ6/ref=sr_1_5?ie=UTF8&qid=1520872377&sr=8-5&keywords=whole+house+fan

I rigged the shit out of it lol.  Basically it's mounted to the ceiling so it draws all the air out of the room and into the attic (which has 2 big vents outside).  I have one of those pull down stairs so you can access the atic, so i just made a cut out that the fan fits in and seals to so i didn't have to cut a hole into the ceiling.  So far it seems to be working fairly well, but again, it's winter here so i'm not so sure how summer is going to go.   I have a backdoor that I've put a security door on and then covered it with Styrofoam sheets and air filters to bring in cool air by the rigs themselves (I have 6 GPU rigs of 8 cards and 2 Antminer A3's sitting there).    My airflow could use some work because it draws it so quickly to the ceiling rather than through the rigs but that's on my to do list.

I can post a picture if you are curious.    



This looks good thanks.

DO you have this fan placed in your ceiling towards the attic and then attic exhausts passively thru a vent?

Or do you have this installed on a wall inside the attic?


[/quote]

Do you guys deal with humidity where you live? I assume it's probably not the best for rigs and was curious on how to prepare for the coming humid months. Dehumidifiers, airflow or just crank the AC 24/7?

typically not a problem, the heat given off the from GPUs keeps the moister in the air at bay.

moving the hot air away always better than using A/C

I haven't experienced it, because this will be my first summer mining, but I live in midwestern part of the USA, and we have some humid days in July and August.  I'm very curious to see how that goes.

I installed a garage door vent in mine, still have another that I need to install in the top, but it's already improved the temperatures a lot!

https://imgur.com/a/qw1gK (https://imgur.com/a/qw1gK)

Took a little less than an hour to install.

Long-term I plan on installing some gable vents along the top sides of my garage to allow for more airflow.

So here is my fun setup.

https://imgur.com/a/GlE1c

Right now it's functional.  Summer time I'm not sure.  I may bring in a portable swamp cooler and see if that helps with cooling assuming I can keep the humidity at bay.  The gable fan has a thermostat and humidistat so I can easily pull out air if the humidity gets to high.   The room it's in right now is approximately 10x20x9 so the air circulates almost twice every minute.   

I've been looking at warehouses to setup my own mining hosting operation (and I could use the space for my existing business) so I might switch it up when I find something.

Same here man. But turns out rigs are essentially expensive dehumidifiers as greenfailure pointed out lol. Just gonna buy more fans to improve airflow and mine on!

Why do you need a lock on the door?  Can't you just kick out the filters and climb through?

There's a security screen door there you can't see (#1 to keep people out, #2 to help keep bugs out).   I kept the top part covered in Styrofoam to help keep the air coming in at the floor level but could easily remove that and bring more air in if needed.   Rain/Snow can come in through the door for now until I cover it outside more to help keep that out.  The door leads to my back yard, so not a lot of people would even notice it.   It's not something they are going to be easily getting through.   I hope no one does, I don't want to clean up blood off my equipment (bullets do that :)   ).  I have a security camera/alarm system running 24/7 also along with smoke detectors that link across my house (if one goes off, they all go off). 

Hopefully that makes sense.

Not the optimal system but it works.  Equipment is nice and cool and fans are usually only 33% on the GPU's and < 5000 RPM on the Asic's.

The guy in florida, two ton hasher, does great stuff on his porch, if youve got a porch to do it i'd go with that.

You need intake at the garage door, I'd get these for security reason.

https://www.homedepot.com/p/WindeeVent-2-75-in-x-12-in-x-17-5-in-Aluminum-Garage-Door-Vent-2-Pack-WV1001W/205911851

Then make sure that your roof has an opening for the air to release.

This has a nice thermostat feature

https://www.homedepot.com/p/QuietCool-Smart-2830-CFM-Power-Gable-Mount-Attic-Fan-AFG-SMT-3-0/302177914

Then I'd get a return vent mount it to the ceiling, connect ducting in the attic so it isn't uber loud and connect it to this

https://www.homedepot.com/p/QuietCool-Professional-3013-CFM-Power-Gable-Mount-Attic-Fan-AFG-PRO-3-0/206047381

My 2c

You should not have troubles by opening the venting through the roof although im not sure if that would be enough to keep all cool, anyways, noise can be controlled with acoustic foam as well

I've seen his youtube videos, if we're talking about the same guy.  Rigs in wooden boxes on the enclosed porch?  You're right.  Seems like he's doing very well even in the humid weather down there.

OP said he has an HOA, I doubt they would approve of anything like that sitting outside (at least in his front yard/porch).

Garage works, just have to be creative in how you vent things and create air flow.

Setup looks decent so far. As others have said, it shouldn't be too loud overall, at least not so much that it would be an issue with neighbours.

Could try to design it like a server farm and have a wind tunnel in the middle.

I have 49 GPU's and 7 ASIC miners in my garage.  Cooling has been tough.  I cut two 5" holes in the side of the house and put dryer vent 'shields' over the holes to make them look like ordinary household vents from the outside.  One sucks air in, the other pumps hot air out.  I use Vortex 8" ducted fans on both holes.  The Vortex fans are really loud, but at least inside the garage the sound is muffled.  Then I have an AC unit which vents its hot air also through the 5" vent exit.

This worked okay in winter but now I am putting all the rigs into a tent inside the garage.  Stacking them inside the tent.  With ducting pushing outside air into the tent, and the other vortex fan via ducting pushing the tent air outside, it should be really cool, also the AC will pump its cold air into the tent.

Setting up my garage cooling (and constantly adjusting/improving it) has taken way longer than building the rigs themselves.

I agree for sure with that statement.  Setting up the rigs to run isn't hard, getting them to stay cooled 24/7 is another story.  It's not so bad with 1 or 2 rigs but when you start multiplying that or adding ASIC's to the mix, it's crazy how hot a room can get in a few minutes of them running without proper (any?) airflow.  If I only had 240v in every room during the winter, I could save money on my heating bill.

nah but last yearci had half the gpus i had and no s9s or d3s
basically outputting twice the heat i did last year, but last year i had nothing to exhaust the heat
with till late summer when i added two exhuast fans.  No i have six but i still need a
way to cycle in fresh air

Two ton hasher did a great job in that video so much so that i thought i'd take it to a slightly larger/more permanent scale being in a similar climate for almost half of the year here.
I'm in Australia and getting daily external temps of 25-40degC, and humidity from 60% up to 95%. I previously had 6 x 6card rigs in my double garage and the ambient temperature was always sitting around 40-50degC  even after i put in an extraction fan in the roof to get the heat out over the eve. My wife hated the garage that hot so i built a shed in the back yard that is only 3m x 2m x 3m high that i thought was going to have been a waste of money with the first cooling iteration, i had only put in a wall extraction fan that did ~160m2/hr.

Next attempt i built a bulkhead about 400mm square against the back wall of the shed across the entire length and put 2 x 250mm 320m2/hr bathroom exhaust fans(with room for at least 2 more) in the underneath of the bulkhead and at either end of the bulkhead on the outside i put 100x200mm vents for the hot air to evacuate.

There are 3 air intake vents 100x200mm on the lower front of the shed that originally i put box fans in front of to blow the cool incoming air at the rigs however i have now removed them to do a test to see if the air would flow naturally in the vent and out the exhaust without extra fans and the internal temp has dropped ~5degC.

I have  thermal sensors on the intake, outtake and middle racks of the shed and I am averaging 15degC difference on the incoming temps to the outgoing temps. There is very little noise from these exhaust fans, now i have no idea how long they will last being on 24/7 so time will tell but i'm happy to replace $20 ceiling exhaust fans every few months than deal with loud commercial fans.

So far i think heat is under control so time to add a few more rigs and see :)

What kind of power usage on the bathroom exhaust fans?

If you have enough air being pushed out of an area, you don't really need fans for instake anyway as it will be pulled in naturally.  (That's how my setup is)

They are 38 watts each, it's the "Arlec 250mm White Exhaust Fan" .

Yeah, he's smart.  AC is stupid

Iam sorry you said there is no window in the garage but cant you open a window (i cannot see the picture of the garage because it doesn't work) or get some kind of a desert airconditioning it could help out in this hot weather
And please if you found a better soluation dont histate to share it with us because i suffer from the same problem my self

I built the outdoor box rig under a covered deck....

Works incredibly well except my issue was being able to bring enough power to the box under the covered deck as compared to the 2/30 A @240V I have in the garage.


https://cdn.discordapp.com/attachments/405929816953716746/409845662696472586/20180121_124029.jpg

Now I vent into the attic with 1250 cfm fan @ 90Watts and have filtered venting on my garage door.

Working quite well thus far with 30 GPU.

attic gable style fans from home depot (Amazon as them $40 cheaper) will get you 1300+CFM exhaust. I just put 2 in my Mining Shed. I live in Texas and temps in my area have gotten to 85-90F already this year for multiple days in a row.

Cards stayed about 50-65C inside the shed. Hottest cards were in the middle of all the rigs too.

Exhausting more hot air is the key to managing Temps. A/C should be a last solution imo (more electric and can mess with humidity levels if fans go out)

Air conditioning is certainly not an option. He will never be able to compensate for heating from the work of the GPU. It is also important that the work of the air conditioner will increase the power consumption. It is necessary to properly direct the air flow for better circulation. This must be done by the experts. In the organization of ventilation is of great importance even the location of air vents.

As much exhaust as you can stuff in there. Don't even consider cooling until you've done all that you can with the exhaust side. Then, if you want to run AC to drop the miner's intake air temps, so be it. I'd recommend an evap type of cooler rather than an air conditioner, far less amperage diverted.

Ive been looking at dual zone split acs they have a rediculous 22 ser rating
can cool up to 24k btus and cost only 2300 or so.

wattage is 1600 very reaonaable and you can get a heating and cooling model
which helps with humidity in the winter.

https://www.ebay.com/i/332395637591?chn=ps&var=541410197174&dispItem=1&ul_ref=http%253A%252F%252Frover.ebay.com%252Frover%252F1%252F711-117182-37290-0%252F2%253Fmpre%253Dhttps%25253A%25252F%25252Fwww.ebay.com%25252Fi%25252F332395637591%25253Fchn%25253Dps%252526var%25253D541410197174%252526dispItem%25253D1%2526itemid%253D541410197174_332395637591%2526targetid%253D441940624444%2526device%253Dm%2526adtype%253Dpla%2526googleloc%253D9019664%2526poi%253D%2526campaignid%253D1058340450%2526adgroupid%253D52757731435%2526rlsatarget%253Dpla-441940624444%2526abcId%253D1133886%2526merchantid%253D115324784%2526gclid%253DCjwKCAjwhcjVBRBHEiwAoDe5x8TVwIG03kgWbxkbnR0AW58ZfFkI7ZJ7xmvkzpK1n5O_hhuTCIDPzxoCZAEQAvD_BwE%2526srcrot%253D711-117182-37290-0%2526rvr_id%253D1474104211920

Thats some pretty wood!

If you run in the room itself also you need to exhaust and air conditioned for it bro. There is no heat issue will be produced if there is good temparature in your room bro. I see you are recommending big estimation for running with the high cost of electricity already with the miner.
Garage such a hot place. If you add the EVAP coolers are heating in the roof means it still as very bad temparature.

Here are my few Tips for have the Rig cool.
The best ist to have the rig in a cool place. I have them in the undergroundfloor, there it is the whole year cool.
I know a big fan which pushes the cold winter air inside the room to cool down the temperature a bit more that the fans are not so loud.
In the summer time I reverse the fan and push the hot air to the outside that It not start to getting warm inside.
This solution works perfekt for me. Nothing more is needed.

What?

My electric cost is very low. Why would I spend 10A on an air conditioning when I can spend 2A on an evap cooler and use the other 8A for miners?

Ambient outside temp here reaches over 36c for months. The evap cooler allows me to keep miner rack air intake temps under 27c which allows me to run the cards hard but they stay under 70c.

I don't know what cards you have but if for example you have 30 GPU @ 200W each that is 6,000W, so (not even counting PSU & CPU heat) you will need 20,500 BTU. The remaining 4k BTU that you're talking about will probably barely cover your PSUs, CPUs, etc. In the end you're best case stuck with ambient temps in the room.
If you find a way to exhaust the heat to the outside then you will only need a small AC unit to cool the room.

In the past I used one of these 14k BTU @ 10.8A, and had external intake & exhaust so in an 27c room it would pump out 16c air all day long. https://www.amazon.com/Whynter-Dual-Portable-Conditioner-ARC-14S/dp/B0028AYQDC

$9.99 CAD  a sheet (4ftx4ft) 1/4 inch ;)

yeah I alaready have an external exhaust, I have six atttic fans.  I will be installing an intake fan next week.  The AC is just to help like you said cool the hotspots and add a few degrees of lower temps.

Plus it can help with humidity build up

I think using air conditioner is not good idea for garage cooling. Before I have a mini garage which is 9m2 with 2 AC, but it seems stuck at ventilation and not effective.
Finally, I have to setup again with 2 box fans and 2 high speed fans and remove all AC. The ventilation is very good, the room temperature is kept at around 34C, but these high speed fans are quite noisy.

https://i.imgur.com/2hTPl0x.jpg
https://i.imgur.com/T9erhvb.jpg