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921  Bitcoin / Mining / Re: Miner's Heat Generation on: September 21, 2014, 05:57:11 PM
1 BTU/hr = 0.29307107 W. It does not matter what the application is that consumed the watts and produced heat in the form of BTU/hr.

Thanks for the info. So 5.5-6 tons of cooling if I max the breakers.

Cooling ganna cost you a lot, better to just use fan?

Fans definitely will not be enough for this much heat.  This is more heat then an outdoor gas grill. I should be fine, you can buy used 5 ton cooling units for around $3000.
You are completely confused.  Don't even think about attempting this.  It won't work.  You can't AC miners.  You must blow the heat into the atmosphere with a fan.  If you attempt to use AC, you are going to be stunned how much energy you will consume.  It's not engineering, it's physics.  

Nope not confused. Of course you can AC miners, how do you think large datacenters do it?  Fans are not a viable option as Houston has 99F+ degree days with 80%+ Humidity.  I may be able to do a hybrid and AC outdoor air to below 80F and pipe it in for the miner intakes the exhaust outside, but that is a lot of ducting.  Full blown ACing them still seems like the best option.
922  Bitcoin / Mining / Re: Miner's Heat Generation on: September 21, 2014, 05:49:14 PM
Have you read this? ---> http://www.coindesk.com/cryptocurrency-miners-turn-exotic-cooling-systems-competition-heats/
It's more targeted at data centers, but they say liquid immersion cooling systems are becoming more common these days.

Very interesting concept and could cut cost in cooling.  Grin

LOL that is too hardcore for a house.
923  Bitcoin / Mining / Re: Miner's Heat Generation on: September 20, 2014, 03:35:48 AM
Geesh with a price like that definitely grab all the mining gear you can. Wouldn't doubt to go with AC cooling then if you can afford the AC units.

If you don't mind me asking, how do you get a price like that?

Moved into a house that had been emptied for a long time and signed a contract for flat rate power, monthly rate is based on the previous 12 months.  Basically unlimited power for a flat rate every month. Talking to local transport company about taking my service line from 200A to 400A.  Smiley
924  Economy / Computer hardware / Re: [WTS] 155 Ant Miner S1's - Houston Texas on: September 18, 2014, 07:22:20 PM
Will you accept cash and picked up locally? PM Sent
925  Bitcoin / Mining / Re: Miner's Heat Generation on: September 18, 2014, 06:38:35 PM
As others have said, look into fan cooling. If you go the AC route, that'll really cut into your profits by using all that electricity on air conditioning. I'm guessing AC will use about the same amount of power as the miners themselves, or near that.

My power is less then .001 cents per KWH, maybe even cheaper.
926  Economy / Computer hardware / Re: Free Hardware (lots of it) on: September 16, 2014, 01:20:09 PM
What city are you located in?  I can do local pickup and even give you some cash for your trouble.
927  Bitcoin / Mining / Re: Miner's Heat Generation on: September 15, 2014, 02:17:13 PM
1 BTU/hr = 0.29307107 W. It does not matter what the application is that consumed the watts and produced heat in the form of BTU/hr.

Thanks for the info. So 5.5-6 tons of cooling if I max the breakers.

Cooling ganna cost you a lot, better to just use fan?

Fans definitely will not be enough for this much heat.  This is more heat then an outdoor gas grill. I should be fine, you can buy used 5 ton cooling units for around $3000.
928  Economy / Computer hardware / Re: Selling 27 Antminer S1 units, USA conus delivery only on: September 15, 2014, 05:56:49 AM
Would you consider local pickup and paying in cash?
929  Bitcoin / Mining / Re: Miner's Heat Generation on: September 15, 2014, 02:40:03 AM
1 BTU/hr = 0.29307107 W. It does not matter what the application is that consumed the watts and produced heat in the form of BTU/hr.

Thanks for the info. So 5.5-6 tons of cooling if I max the breakers.
930  Bitcoin / Mining / Miner's Heat Generation on: September 15, 2014, 02:16:55 AM
Hi,

Got a question.  Building an area of my house to house a dense amount of miners.  Going to dedicate about 90A of 220V to the miners and the supporting infrastructure and possible the A/C to cool them. Currently have 4 tons of cooling but that is for the whole house, so I know I will need to dedicate more A/C to the miners.  MY question is usually when I build datacenter for traditional uses I estimate 3.5 BTU per watt of power, do miners fall into this same ratio of heat per watt?  Since the power supplies are usually from servers/computers I am going to use that ratio on them but any help with heat generation on miners would be helpful.

Normally for datacenters I also do lights, breakers, wiring, etc, but in the case of this room in my house just worried about the computers, miners and the window.  The only one I am not sure about is if the miners fall into the 3.5 ratio.

Thanks.
931  Economy / Computer hardware / Re: [WTS] $650/$550 Antminer S2 1 TH/s Upgradable on: September 15, 2014, 02:02:30 AM
How does the HW error rate look on the one that has something wrong?
932  Economy / Computer hardware / Re: WTS: Black Widow, Antminer S1, PSU's, GPUs and other misc stuff on: September 11, 2014, 08:50:49 PM
PM Sent. Made offer on Raspberry's and one of the PSU's.
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