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minefarmbuy
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September 17, 2018, 03:05:02 PM
 #21

Would you modify a home with one NFW?

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NotFuzzyWarm
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September 17, 2018, 03:30:54 PM
 #22

Would you modify a home with one NFW?
You mean mod a standard portable home genset to use NG/Propane? No. Why -- because Generac and others already sell them as permanent units and more to the point of this discussion they are not made to run 24x7x365 which is that the OP intends to do.

I have a 13kW permanent NG-fueled genset at home from GE that automatically kicks in after power is out for 15-seconds. Even so, it is a standby unit and requires filter/oil change after 40 hrs of run time. Brush replacement is supposed to be over 120hrs but again, that is a far cry from units designed for Prime-power operations.

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minefarmbuy
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September 17, 2018, 03:34:38 PM
 #23

I meant with the unit you're suggesting they use for this build.

Having a generator would be nice though for blackout.

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September 17, 2018, 03:44:47 PM
 #24

Well -- yes. I highly recommend ANY home owner install a permanent backup generator. I did mine around 10 years ago after a massive 2-week long blackout hit lower Michigan/Ohio/Ontario. Last major outage we had was 2 years ago after a huge storm took out a major substation in our area with power out for several days before temporary transformers/switches were installed.

After that one, the electric company did major rebuild of the infra around us and of course now outages are fairly rare but it is still nice to have backup even for the few hours power is out each year.

For bitcoin to succeed the community must police itself - Joshua Zipkin aka Joshua Alexander leaked AMT A1 miner skype chats
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Arcane423
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October 14, 2018, 12:43:48 AM
 #25

So with all the release of the new 7 nm miners, anyone else think the price of existing miners on the market plummet? Considering buying cheap miners since the power cost is irrelevant and I can ROI faster on a $280 T9+, hoping they may drop even lower. The building preparations have been made and I am in the process of finalizing my generator selection
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October 14, 2018, 01:07:45 AM
 #26

Had to read back a little.

Honestly right now you can get 741's for like 20 -50$.

Of the ones I've run they tend to average around 7.8 TH/S.

Realistically with shipping going up based on more units you could grab 4-10 of these right now and get hashing away. And be well ahead. Even grab a few extra in case you need parts, I've only had one board fail in the 12 I've run... and I'm pretty sure it was a heat issue .

I'll look again but I believe it was cryptouniverse that had them on extremely cheap. If you want i can also reach out to a Canadian guy i bought a few off a couple months ago, he got burned with a pricey pallet and held on to them to long.

https://www.cryptouniverse.at/shop/avalonminer-741-up-to-8th-s-august/ new
I look some more in a bit and see if I can find the other listings I had noticed

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October 14, 2018, 04:42:40 AM
 #27

Came across this:

https://pangolinminer.com/product/m3x-2ndh/

Not a clue if they're legit but hope the info helps
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October 14, 2018, 09:02:46 AM
 #28

Came across this:

https://pangolinminer.com/product/m3x-2ndh/

Not a clue if they're legit but hope the info helps

They are legit.

philipma1957
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October 14, 2018, 11:15:29 AM
 #29

I have 3 used avalon 841's up for sale

https://bitcointalk.org/index.php?topic=5049376.0

don't go for the t9's

and other sellers have used s9's

this is a good deal below

https://www.ebay.com/itm/Bitmain-Antminer-S9-13-5-TH-Bitcoin-SHA-256-Miner-Pre-Owned/202450059173?

and he will give you 10% off if you buy 4

so 4 x 300 = 1200 - 120 = 1080  or 270 each

https://www.ebay.com/itm/Pre-Owned-Antminer-S9i-14TH/302918255154?
https://www.ebay.com/itm/Bitmain-Antminer-S9-13-5-Th-Bitcoin-Miner/223162578177?

psus good price
https://www.ebay.com/itm/APW3-Bitmain-Antminer-charger-1600W-ships-immediately/232861029655?
https://www.ebay.com/itm/Original-AntMiner-APW3-PSU-1600W-Power-Supply-for-Antminer-100V-240V-US-Stock/202402569184?
https://www.ebay.com/itm/Bitmain-Power-Supply-Antminer-Bitcoin-APW3-12V/202431849831?

I mine alt coins with https://simplemining.net...
I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
minefarmbuy
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October 14, 2018, 04:22:46 PM
 #30

Since power cost doesn't matter I'd just look at price per unit range you're looking at and efficiencies. I'd have to go back to on the thread but think of you racks how many units per line you can run will help you decide.

If you haven't gotten racks then your fine just figure out your unit model and count.

Also be careful of used units, not that others here are misleading you but a dud on a new venture is a unit that won't ROI.

Hijack333
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October 14, 2018, 11:46:13 PM
 #31

Since power cost doesn't matter...

It always matters. Even if you have free natural gas.
Imagine what it would cost to buy a generator with credit and run it for many years compared to the output.
So my question: Whats your cost for one kwh?
And why do you want to start buying rigs? You also can provide hosting for other people.
People with rigs at home paying 10-20cents could send you the rig and you charge them 5cent.
I thought about such rig hosting service for europe, found some nice regions. Best one was kazachstan around 4cent nett.
philipma1957
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October 15, 2018, 12:07:18 AM
 #32

Hosting could be an option but it has a lot of hidden costs and issues.
For me if I could have a nice generator with free fuel I think I would mine before I host.
Or cut a deal with one guy looking to dump his miners.

Let’s say he gets a good 50kwatt generator. And one guy brings him 30 s9is.

The deal they do is 50-50 on the coins mined.

His cost is the 50kwatt generator. He gets the coins from 15 machines.

The s9i guy gets free power for 30 machines and keeps coins from 15 machines.

This could work for op.

The gear will always earn money.

I mine alt coins with https://simplemining.net...
I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
Arcane423
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October 16, 2018, 12:42:44 AM
 #33

Hosting could be an option but it has a lot of hidden costs and issues.
For me if I could have a nice generator with free fuel I think I would mine before I host.
Or cut a deal with one guy looking to dump his miners.

Let’s say he gets a good 50kwatt generator. And one guy brings him 30 s9is.

The deal they do is 50-50 on the coins mined.

His cost is the 50kwatt generator. He gets the coins from 15 machines.

The s9i guy gets free power for 30 machines and keeps coins from 15 machines.

This could work for op.

The gear will always earn money.

My concern is the risk involved. There is effectively no way to test the health of a natural gas well. The pressure and line size can only give you a rough idea. What if I commit to hosting a bunch of miners and a month or two later the well stops producing? What if a generator fails and leads to downtime? What if a weather or other event causes peoples equipment to get destroyed or stolen? There is a lot of liability and risk involved that I do not feel comfortable with offloading to others, with nothing short of hiring a lawyer to draft a contract.
Steamtyme
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October 16, 2018, 02:42:19 PM
 #34

I previously bought 3 741's from MiningBaby. They showed up new and packaged the same as other 741's I received from distributors. You can check their untrusted feedback in their trust to see details.

There is a lot of liability and risk involved that I do not feel comfortable with offloading to others, with nothing short of hiring a lawyer to draft a contract.

That makes sense. It is also something to consider for your own risk. I'm guessing though that you figure it will last long enough to ROI your Generator and equipment. Who knows in the long run you might find that an acquaintance or family/friend who decide to jump in. Hosting for these people would be a lot less risk as you could talk with them about the risks beforehand.

minefarmbuy
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October 16, 2018, 03:00:57 PM
 #35

My concern is the risk involved. There is effectively no way to test the health of a natural gas well. The pressure and line size can only give you a rough idea. What if I commit to hosting a bunch of miners and a month or two later the well stops producing? What if a generator fails and leads to downtime? What if a weather or other event causes peoples equipment to get destroyed or stolen? There is a lot of liability and risk involved that I do not feel comfortable with offloading to others, with nothing short of hiring a lawyer to draft a contract.

Yea, don't host. It not a venture to start unless you have all the capital for logistic setup and liability.

I forget what you said your budget was or hash target but with free power you could grab any unit and power them up. New, cheap hardware is A951, S9i. The T2T 25T is decently priced as well but double the price. You can still find some cheap 841's floating around.

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