Building Antminer Shed. Any suggestions on design or air flow?

[kthejung]

                     


It's 6 Antminers stacked on its side(ethernet port on the outside) and lashed together with zip-ties that came with the psu; the small holes at the tips of the frame are what I lashed together.  The vent at the back of the unit consists of vent scoop, reducer, and a 90 degree elbow.  The fan is a 4" inline duct fan by Ventech I bought on Amazon for $60 and it blows the heat out the dryer vent pipe in my apartment.  The tubing is a 4" semi-rigid aluminum dryer hose.  Everything is held together with metallic duct tape.  I got everything but the duct fan at Home Depot in the same aisle.  I previously had the vent placed at the top of the room but found that it is MUCH more efficient at removing heat when placed behind the unit.  Don't buy a cheap duct fan, the more powerful, the better.  You can improve the design by having a bigger scoop behind the antminers; big as the entire miner rig.  I just worked with the biggest scoop I could find at Home Depot.       After installing the improved system, heat in the mining room is very manageable.  Don't go cheap on the inline duct fan!

[1715355311]

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[1715355311]

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[hurricandave]

   I only wish I had the spare coin for a couple of S1's but if I did...I would be thinking of going to the automotive junkyard and buy two radiator fan shrouds from the same kind of cars like a pair of pick ups or SUV's that came from the factory with electric fans. The nice thing about auto fans is that most are reversible so you can easily have one shroud pull in while the other pulls out. SUV's and pickups usually have 21"+ size rads so you would have plenty of room. Then I would buy a sheet of aluminized foam board from home depot. Cut the foam to fit the shrouds and tape with the metal tape. You could even trick it out with a household a/c vent filter on the intake side and use household size A/C round flex vent tubing to direct the output directly to an attic vent. You can buy auto fans in a range of cfm's for most sizes and even look for lower amp units if you want.

[kthejung]

   I only wish I had the spare coin for a couple of S1's but if I did...I would be thinking of going to the automotive junkyard and buy two radiator fan shrouds from the same kind of cars like a pair of pick ups or SUV's that came from the factory with electric fans. The nice thing about auto fans is that most are reversible so you can easily have one shroud pull in while the other pulls out. SUV's and pickups usually have 21"+ size rads so you would have plenty of room. Then I would buy a sheet of aluminized foam board from home depot. Cut the foam to fit the shrouds and tape with the metal tape. You could even trick it out with a household a/c vent filter on the intake side and use household size A/C round flex vent tubing to direct the output directly to an attic vent. You can buy auto fans in a range of cfm's for most sizes and even look for lower amp units if you want.

Mining isn't all that it's cracked up to be...  I spent over 7btcs on equipment and supplies and the rig is quite noisy.  It's almost like picking up a part time job because of the extra stress and concern that I have due to the miners; and I'm only going to profit about $800 at the end of 3 months time of continuous run.  I have no idea how long it will stay profitable.  I have learned a lot about electricity and its components from it so I guess it's a good learning experience.  Hopefully, I at least make my money back.

[shaxs]

   I only wish I had the spare coin for a couple of S1's but if I did...I would be thinking of going to the automotive junkyard and buy two radiator fan shrouds from the same kind of cars like a pair of pick ups or SUV's that came from the factory with electric fans. The nice thing about auto fans is that most are reversible so you can easily have one shroud pull in while the other pulls out. SUV's and pickups usually have 21"+ size rads so you would have plenty of room. Then I would buy a sheet of aluminized foam board from home depot. Cut the foam to fit the shrouds and tape with the metal tape. You could even trick it out with a household a/c vent filter on the intake side and use household size A/C round flex vent tubing to direct the output directly to an attic vent. You can buy auto fans in a range of cfm's for most sizes and even look for lower amp units if you want.

Mining isn't all that it's cracked up to be...  I spent over 7btcs on equipment and supplies and the rig is quite noisy.  It's almost like picking up a part time job because of the extra stress and concern that I have due to the miners; and I'm only going to profit about $800 at the end of 3 months time of continuous run.  I have no idea how long it will stay profitable.  I have learned a lot about electricity and its components from it so I guess it's a good learning experience.  Hopefully, I at least make my money back.

Hah! Good point...I am not stressed but I find it fun. But it has helped me learn a lot about electricity

[jeppe]

I bought one of those cheap 4x6 feet sheds on ebay. Used a day to build it and another one with silicone to make it water tight. I live in scotland atm with teps at max 20C. In the shed atm i have one ant for testing and its over clocked with only stock fan, it runs at 35-38C. If this works out well i will get another 7 ants up in there with a small aircon unit. I have been thinking if they can be overclocked more than the 205th/s??  I can install 2 push pull deltas
Good luck with your shed,
JT

[Entropy-uc]

Think carefully about fire safety.

If something catches fire in the shed, what else is combustible nearby?  How will you discover the fire?  Will it be when your house starts burning too, and your smoke detectors activate?

I would consider a simple sprinkler system.

[shaxs]

Think carefully about fire safety.

If something catches fire in the shed, what else is combustible nearby?  How will you discover the fire?  Will it be when your house starts burning too, and your smoke detectors activate?

I would consider a simple sprinkler system.

Good point. Im going to call my home warranty and see if a fire would be covered. I might also put a Nest Smoke Detector in there which will send me alerts if any smoke is detected. Not sure if they make easy to install one room sprinkler systems. I cant find any at least.

[seriouscoin]

Think carefully about fire safety.

If something catches fire in the shed, what else is combustible nearby?  How will you discover the fire?  Will it be when your house starts burning too, and your smoke detectors activate?

I would consider a simple sprinkler system.

Good point. Im going to call my home warranty and see if a fire would be covered. I might also put a Nest Smoke Detector in there which will send me alerts if any smoke is detected. Not sure if they make easy to install one room sprinkler systems. I cant find any at least.

If you have Nest or any smart smoke detector , you can built your own sprinkler...

Its very easy using RPi, Nest and 1 valve actuator.

[shaxs]

Oh? Do share how!

[southerngentuk]

Oh? Do share how!

No, please don't. Water and miners do not mix.

I recommended a couple of Brooks smoke detectors (wireless linked) one for shed the other in house.

You could mod this to shut off the supply or operate an Halon fire suppressant but sprinkler? I suggest not.  

Edit : small thought experiment

Metal Shed (or other with wet floor) + Electricity + Water + Mad nerd trying to save $$$ of miners on hearing Smoke detector

Shocking

[seriouscoin]

Oh? Do share how!

No, please don't. Water and miners do not mix.

I recommended a couple of Brooks smoke detectors (wireless linked) one for shed the other in house.

You could mod this to shut off the supply or operate an Halon fire suppressant but sprinkler? I suggest not.  

Edit : small thought experiment

Metal Shed (or other with wet floor) + Electricity + Water + Mad nerd trying to save $$$ of miners on hearing Smoke detector

Shocking

Whats shocking is that you dont know what you're talking about.

Goodluck with your solution when you're not at home.

[southerngentuk]

Oh? Do share how!

No, please don't. Water and miners do not mix.

I recommended a couple of Brooks smoke detectors (wireless linked) one for shed the other in house.

You could mod this to shut off the supply or operate an Halon fire suppressant but sprinkler? I suggest not.  

Edit : small thought experiment

Metal Shed (or other with wet floor) + Electricity + Water + Mad nerd trying to save $$$ of miners on hearing Smoke detector

Shocking

Whats shocking is that you dont know what you're talking about.

Goodluck with your solution when you're not at home.

  Really

You best make sure that shed is bonded to earth and has an Residual Current Device on its supply 

[shaxs]

Oh? Do share how!

No, please don't. Water and miners do not mix.

I recommended a couple of Brooks smoke detectors (wireless linked) one for shed the other in house.

You could mod this to shut off the supply or operate an Halon fire suppressant but sprinkler? I suggest not.  

Edit : small thought experiment

Metal Shed (or other with wet floor) + Electricity + Water + Mad nerd trying to save $$$ of miners on hearing Smoke detector

Shocking

It will not be metal. I twill be cement board which doesnt burn. It will also be pretty water tight- about as tight as you can get. I have another shed on the opposite side of my yard that was custom build that doesn't leak a tad. I think it will be alright.

[philipma1957]

I found my stash of fans and a variac (speed controller)


https://bitcointalk.org/index.php?topic=537431.msg5919196#msg5919196

[shaxs]

I found my stash of fans and a variac (speed controller)


https://bitcointalk.org/index.php?topic=537431.msg5919196#msg5919196

Looks pretty good! I think I am going to go with inline for sucking hot air through ducts and out the building

[southerngentuk]

Oh? Do share how!

No, please don't. Water and miners do not mix.

I recommended a couple of Brooks smoke detectors (wireless linked) one for shed the other in house.

You could mod this to shut off the supply or operate an Halon fire suppressant but sprinkler? I suggest not.  

Edit : small thought experiment

Metal Shed (or other with wet floor) + Electricity + Water + Mad nerd trying to save $$$ of miners on hearing Smoke detector

Shocking

It will not be metal. I twill be cement board which doesnt burn. It will also be pretty water tight- about as tight as you can get. I have another shed on the opposite side of my yard that was custom build that doesn't leak a tad. I think it will be alright.

No worries, my comments where more in respect of those suggesting putting in a wet sprinkler system not the shed itself. I would recommend a co2 extinguisher by the door though.

[shaxs]

Oh? Do share how!

No, please don't. Water and miners do not mix.

I recommended a couple of Brooks smoke detectors (wireless linked) one for shed the other in house.

You could mod this to shut off the supply or operate an Halon fire suppressant but sprinkler? I suggest not.  

Edit : small thought experiment

Metal Shed (or other with wet floor) + Electricity + Water + Mad nerd trying to save $$$ of miners on hearing Smoke detector

Shocking

It will not be metal. I twill be cement board which doesnt burn. It will also be pretty water tight- about as tight as you can get. I have another shed on the opposite side of my yard that was custom build that doesn't leak a tad. I think it will be alright.

No worries, my comments where more in respect of those suggesting putting in a wet sprinkler system not the shed itself. I would recommend a co2 extinguisher by the door though.

Absolutely will


soo... Fire extinguisher, Nest Smoke Detector, remotely operated light switch and IP cmera to look and see inside if I get alerts. Should be good to go.

[southerngentuk]

Absolutely will


soo... Fire extinguisher, Nest Smoke Detector, remotely operated light switch and IP cmera to look and see inside if I get alerts. Should be good to go.

+100
I have little experience with the nest smokies so can't vouch for them (I have been installing smokies for over 10 years and no-one has ever asked for them) however am sure there good, all good quality mains smoke detectors have an option to interlink to each other with an extra wire ( so you can have one in the house that will activate at the same time) There are also some battery models that have a wireless radio link to each other. Like this http://www.sdfirealarms.co.uk/fire-protection/radio-wireless-fire-alarms/battery-only-radiolink-alarms/ei3105rf-radiolink-wireless-optical-9v-smoke-alarm.html, wired link is obviously better but not always practical.

[shaxs]

Absolutely will


soo... Fire extinguisher, Nest Smoke Detector, remotely operated light switch and IP cmera to look and see inside if I get alerts. Should be good to go.

+100
I have little experience with the nest smokies so can't vouch for them (I have been installing smokies for over 10 years and no-one has ever asked for them) however am sure there good, all good quality mains smoke detectors have an option to interlink to each other with an extra wire ( so you can have one in the house that will activate at the same time) There are also some battery models that have a wireless radio link to each other. Like this http://www.sdfirealarms.co.uk/fire-protection/radio-wireless-fire-alarms/battery-only-radiolink-alarms/ei3105rf-radiolink-wireless-optical-9v-smoke-alarm.html, wired link is obviously better but not always practical.

The nest will actually link to each other using the same wifi network I believe. I have another in the house by my bedroom. So with the phone alerts and link to that one I should be good. Im mostly worried about when I am out of the house.

[southerngentuk]

The nest will actually link to each other using the same wifi network I believe. I have another in the house by my bedroom. So with the phone alerts and link to that one I should be good. Im mostly worried about when I am out of the house.

If you already have nest in the house then yes, defiantly stick with them.

If your really paranoid ( no offense meant, I myself have turned mining gear off whilst away for a weekend) there are a few options.

If the nest has an auxiliary output you could switch a contactor with it ( if it activates your miners are shut down ) without electricity you will limit the damage.

If you really want some form of suppressant perhaps a large bottle of co2 ( ask in your local pub, they have bottles out the back ) and a gas valve coupled with shutting off the electricity may do the trick.