Bitcoin Forum

Hi,
How can I host (safely) several Cointerra units at home, without overstaining my electricity circuit ?
They consume between 1900W and 2100W.

I would be willing to make some adjustments (if price is reasonable).

Thanks for your help !

Several? Your going to have issues, A single CT needs 2 separate 15A 120v breakers to function, unless you have spare 20/30A breakers for stove/dryer etc.

Put one on each ring?

Your are likely going to need two 240V 45AMP circuits installed. A whole house surge protector is recommended also, as 240V surge protectors for high AMP devices are much more expensive than using a single whole house protector. You would likely need 200AMP mains service to support this along with your normal needs, which not all house have.  Best bet is going to be calling up a electrician and them come out to give a quote.

I thought this is gonna happen, I hope i do not have to convince my friends to babysit the miners.
Do you think it would be very difficult /expensive to install the right breakers ? Obviously done by an "electricity expert".

Since you are asking these question, I would call a electrician. If you screw up you can burn down your house.

That sounds like the best solution. I will give a few calls to some electricians and let you guys know what the outcome will be.
Anyone an idea what this could cost  ?

PMed you. I will send you a hosting quote.  These units eat a ton of juice and need good cooling.

Cheers,
Dalkore

$68 month for $7 your cost in electricity? No thank you.  That's like a 900% mark up, I am in the wrong business.

Is my math wrong? That seems a bit steep.

I think it is: $295.64/month

http://bitcoinasichosting.com/pricing (http://bitcoinasichosting.com/pricing)

I took the calculation form the BFL Single SC #.

The Terraminer IV is a much better deal. Only about 10-15% markup. Maybe this is due to the rack mount nature of TMIV.

A liberal estimate (using a *good* electrician) would be about $2000.

Thanks. Dalkore's offer sounds as well interesting  :)

I got 4x 20A circuits installed for $200, including parts.

Sure the power is cheap but the redundant power infrastructure, large commercial HVAC, redundant fiber connection, 24 hour monitoring and tech support (they do have issues) is not $7.    You need the low power cost to keep everything else cheaper.  I will be doing a video tour soon and that will help people see what it entails.  Thank you for your question. 

0.o here in uk its 32A 230v, whats ur V rating

Don't forget your cooling.   75 degrees or less is where you need to keep the room for optimal hashing.

It's in a cold basement. 37F is ambient temp.

Hey Hiroaki, I'm Dalkore's business partner and another owner at www.bitcoinasichosting.com

Something I need to stress is making sure you calculate the total cost of everything required to do an electrical upgrade to a residential unit.  Permitting, wiring, paneling, and installation of A/C are the things that come immediately to mind.  Also, unless you are the owner of the house, doing extensive power upgrades that will be left at the house might be something to consider.  Last thing is simply the noise and the heat.  These Cointerras are LOUD, expect to hear one from 2-3 rooms away in a residential setting.

Hope you find the best solution for your mining needs!

StringTheory

PS. Don't run 3 or more in a small house unless you love nonstop Dubstep   :P

They are far too loud for a residential setup.

And at $300 per month for hosting, you will lose money each month shortly.  The ASIC gold rush is over.

why do you need two 45 amp circuits?

2100 watts at 240 volts is 9 amps... you won't need two circuits... one will do.

however, if you're using 120 volts... then you'll need two circuits, because 18 Amps continuous draw is higher than the average household breaker.

Another idea - get one of APC power strips - they can run 240V off 2 phases.