Topic: Advice on home mining (Read 498 times)

I thought that installed power output of panels 3x bigger than max consumption of miner should produced enough energy for inverter to keep stabilized 230V, 50 Hz sinus under that load, even in not super sunny days. Ok I will try to consult this with some company who builds FV installations and possibly connect it to the grid to balance those irregularities, despite I wanted to avoid it.
Anyway, thanks for advices, you might saved me a lot of troubles.

getting an inverter to be that stable is hard.

We played around with this and L3+ units back in the day.

The inverter could not stabilize and run the pus correctly.

we went string of pineal to 120 volt inverter to  apw3++ psu.

Also you can't run 8am to 6pm

more like 9am to 4pm

even more like 10 am to 3pm.

early sun and late sun are not very good. especially missing the battery.

you could stabilize the setup with a decent battery

panels >>> charger>>> battery >>> inverter >>>> psu

but do not use a 3500 watt miner.

do this one

https://altairtech.io/product/bitchimney/ set it to low 40 th and run it for 6 hours a day say 9:30 am to 3:30 pm

the battery needs to be lithium ,

and it acts more like a big ass capacitor than a battery as you almost never take 20% against it.

and personally you will likely lose money because battery and off grid do not work for this. Even with a lower power miner and only running 25% of the day.

No batteries? Are you sure? I don’t think it will ever work. Batteries stabilize the current, they provide you a stable electricity. Without the batteries you’ll have a unstable current that have many small cuts, voltage drops and spikes etc, you’ll fry your miners. At best, they’ll never work. Even on a fully sunny day your solar panels won’t produce a regulated stable electricity for your miners. If that kind of setup was possible, everyone would do it and nobody would use batteries.

Your project is dead on arrival.

Sell it to the grid, thank me later. I saved you from losing a couple thousand.

I have never seen a non-battery setup, if you can make one, prove me wrong and I’d learn something new gladly.

Thanks for replies. My idea is to buy miner with consumption somewhere in range 3-3,5 kW/h and feed it from 10 kW FV installation (I guess that tripled or almost tripled installed power output of panels should produce enough power for 3,5 kW/h miner). No batteries, so miner will operate lets say from 8:00 to 18:00. It will be off grid installation. Purchase prices for electricity from FV are so ridiculous here that it doesnt giving much sense to sell it back to the grid operator and on top of it, any on-grid installation have to be legal = you need official project, licenced company to build it and regular revisions, all of which further increasing costs.
I have two possible locations, first is quite sunny garden in southern Slovakia and second is my cottage, thats a bit more mountaineous area, but on the other hand, much better prepared (optical internet, electricity etc.). I dont need FV for anything else, just for miner, so all its capacity will serve to miner. For winter I might to pack miner and send it to datahousing somewhere in US (current prices are 0,08 usd/kWh).
At least thats my wet dreams lol, I wonder how they will crash with reality.

If he gets a good grid package he can mine when mining pays more then the power company pays him.

Right now in New Jersey if you have a roof of solar on your home you may have 10kwatt to 20kwatt set up

that will produce on average 50 to 100 kwatts in a day.

the best miner for btc is the s21xp it does 270 hash so at 5.76 cents a th it makes $15.55 a day

it burns 88 kwatts which would be all of your 20kwatt large roof setup. that makes 100kwatts a day.  It would pay to mine right now say 88 of the 100 go to the miner and 12 go for a 1 to 1 credit.   you would spend $14.60  of the 100 x 16.60 cents a kwatt  = $16.60 credit on the miner

and get 2 dollar of your bill with the left over credit. So you would net about 15.55 + 2 = 17.55 vs 16.60 and of course you would get tons of free heat.  which really is free. about 7 a day in heat.  All of the math disregards the 7600 usd you paid for the miner.

So for the next hundred days you make 7+ 1 = 8 bucks x 100 = 800 bucks.  plus you paid 7600 for the miner.  it will take years to pay all of it off but you spent zero on batteries so the power system is cheaper.

or just use the 100kwatts a day to reduce the power bill you have. and do not buy a miner  = much less work.

Search the forum. People ask the same thing all the time.

Solar panels/batteries + ASIC mining don’t mix together.

The bottleneck is your battery pack. Their lifecycle isn’t enough to sustain your miners. Miners are way too power hungry.

Even if you find a way to constantly feed the batteries with solar energy (i mean if the sun was up all day and night), it still wouldn’t work.

Your batteries will die quickly and you’ll have to replace them. Then instead of making any money, you’ll be spending from your own pocket to replace your batteries.

Tldr; sell whatever electricity you produce to the grid. You’ll make more money.

Hi, I would like to ask few things about asic miners. I want to build small photovoltaic power plant, around 10 kW output and feed with that energy an asic miner. But I would like to shut down miner for night (so I dont have to invest into batteries for night operation + more fve panels to charge them through day + bigger/more expensive converter). Is that even possible? Can be asic miner regularly shot down, lets say at 6:00 p.m. and turned on at 8:00 a.m. automatically? Or it need to be set up (pool adress, wallet etc.) everytime after its turned off?
Thanks for advices and replies in advance.

Once mining was a hot topic and easier as well as>But day by day it will be much more difficult systemically

I want to say in shortly that the money you will invest in mining if you invest in bitcoin trading you maybe much  profitable .

Just last week btc price was around 75... something but now it is 90.. up
So, I think trading maybe a best option

IN trading you dont need to trade daily. Just a specific about keep in trading when price will down try to buy and at high price try to sell thats it you dont need to took it as you daily activities . lite task but quite easy.  Hope you Understand.

Sorry I dont want to change the topic.

:=Noobguy

Anyone ever seen someone plum a hydro s19 or similar into the radiator system? Might work? But maybe the radiator water corrodes the heatsink on miner? Or flow on the miner Heatsink is too restrictive?

As for putting the dry cooler inside, if it is heat related, it won't differ from just putting the miner with fans since it is the same heat, As for noise, I am sure the dry cooler would be a lot quieter than the small fans on the miner provided it has an EC fan (variable fan speed).

You are right in regards to the complexity level, it won't be as simple.

one thing you can try would be using inline fan, something like this https://youtu.be/8JJHSj-F0yI?si=SLk-Uj7HRZzcG0PO

The bottom line is this, to mine at home, you need a larger fan that spins at lower RPM.

That is a very close call, I had in mind that the immersion cooling kit would be an investment (it could probably be sold at the same price in 4 years if it's effectively reusable for the next gear, which I think is not a guarantee at all). I don't know yet what will be my situation in 4 years.

I have also the impression that the new gear seems to be sold at a premium price, in comparison with the old gear which barely nobody wants because it's non profitable for a majority of people. The space heaters are not made of new/expensive gear.

I'm really not confident with the dry cleaner inside but maybe i'm wrong, if I could see/hear it in person maybe I would change my mind but 65 DB inside is too much on paper.

Something that I didn't mention is that I may have to setup new wires/breakers for 3000+ Watt (20 amp minimum on 240v). I have some 20 amp but I'm not sure it's at the right place to put the immersion tank / miners. I don't have this problem with several 1200 Watt miners, it's more flexible.

For a first time mining, as I'm non experienced, I rather not start with immersion mining as it seems a bit more difficult to setup, and I feel more stuff can go wrong.

In short, there is a good chance for the immersion choice to be more profitable overall (same price/hashrate approximately but far more efficient) but the risks seem to me far higher.

I am not against what Philipma suggested, but there is one piece of information that might be missing when you buy a miner and then underclock it or run it with two hash boards you are basically paying a lot more for the same hashrate, if they gear costs you $1000 and you run two boards only, it would about $300 waste, that 30% or so loss might not be too noticeable if you already have a used gear sitting around or you found someone selling it locally for cheap, but if the gear is new and expensive than that difference might be enough to buy you the immersion cooling kit.

One thing to keep in mind as well is that the extra money you pay for silence is going to go to waste the moment you move to the next gear, whereby if you buy immersion cooling kits you would always be able to use it in the future, I think you should explore the smaller single-miner options like C1 from Foghashing, or Bitpod by DCX, those have very small dry coolers which you may be able to place inside the house to keep it warm, or connect it to your water supply to heat the water.

Hi everyone,

I wanted to share the state of my interrogations regarding this topic.

Side note : I received the 2 nano 3 and it's working very well, the fans sound when high mode is a bit high pitched but it's very discrete in normal mode.

I ruled out immersion mining even if the pros are appealing : relatively quiet, best efficiency and max THs
The reasons are the setup is a bit complicated in my situation, the dry cooler is better outside and I don't have easy access to it, plus the upfront cost of 2k + the few extra per year to replace the coolant. Also I will only have 6k Watt at my disposal which is a bit low to take advantage of for example the C2 tank (the C1 being not interesting I think, to much work to setup and upfront cost, just for 1 unit). Thank you nonetheless Mikeywith for the idea.

Because of that and because I want a setup as quiet as possible, I will probably go for the D-central Loki edition units, which will also have the little pro side effect of heating my home. I will take probably 5 units (6k Watt) which I will dispatch across my apartment.

S19j pro or S19k pro is my current hesitation, as I would ROI the S19j pro on less than 2 years, and the S19k pro on a bit more than 2 years, but it will be profitable a bit longer. It seems quite similar with the setup Philipma suggested (s19 units downcloaked).

If you have any experience (durability, efficiency) with the two hashboards types (s19k pro / s19j pro) I would gladly take it, I think I've found that it's the same chips ? But not quite sure.

Thank you

65db isn't all that loud, if you put it in the balcony it will be the equivalent of two people having a normal conversation there, so if the door is closed you will hardly hear anything.

Obviously, sleeping right next to it is a different story, however, if there is a wall in between, you will be good.

Here is a review of the C2 kit, you can get a good idea how loud it is https://youtu.be/NVyFg6sK8Ak?si=dOOHKzLT7bB1VWms

Hi, thank you all for your answers.


I can't get exactly for max efficiency because it is in the inside of my apartment (not in the bedroom at least) and I want the setup to be as silent as possible.

I'm looking at the build proposed by philipma which is very cost efficient at first for the THs achieved, but i'm a bit reluctant to build it myself, even if it doesnt seem to be out of reach. I'm looking at the heaters at D-central that Ive found recently, which are more costly first but efficient nonetheless and pre-build. Do you guys know that ?

I bought recently 2 avalon nano 3 to have a first foot in mining and setup (september future)


I didn't precise but I don't have access to the outside unfortunately, I thought about puting one or two miners in my balcony but it will be too much work I think. I studied a bit the dry cooler and the setup seems to me a bit difficult, and the noise is still high I guess : here's an answer from someone from apexto
 --> "i checked the noise just now.
immersion cooling:
c2 tank, 45db.
c2 dry cooler, 65db."
So except if I manage to put the dry cooler in my balcony, I will still have some important noise from the dry cooler inside. But I may be wrong.

For the M66, I just checked and I confirm I don't have 3phase so it is out of the equation

If you have access to the outside, then your best bet would be immerged cooling, dcx and Fog Hashing have some cool kits, the C2 from fog hashing does 12KW @30c (fits your 7kw limit prefectly), it takes two miners and the dry cooler is pretty noiseless, last I checked it was selling for $1500, it takes roughly 80 litters of coolant which I think costs about $500, so you are looking at  about $2000 for the entire set up, but you run with good silence and very good cooling.

For gear durability, go with Whatsminer, they beat Antminers in every aspect of quality, you can get two M60s 180th for $3.5K each, or two M50s 130th for $1.5k each.

Another option would be the water cooled gears like M66 or M62, but those are rack-mounted and required 3phase, actually, almost all hydro gears require 3phase electricity and are not meant for home mining unless your house has it.


due to the small blades and the heatsinks behind them, there is an annoying whistling sound that comes from these miners, I think 3k rpm is more or so not loud, but I don't think you can sleep next to it.

Get a bitaxesupra for some initial testing and setup!

Go for maximum efficiency!

Consider a bitmain s21/s21pro/s21xp hydro with your own DIY radiator/fan cooling setup

With 0.03 per kwh you will be profitable. Best of luck!

silence is not going to happen if you are burning 7000kwatts.

but you can make the fans do 3000 rpm and they are tolerable.

For the heat issues, do you mean that whatever the solution I come up with, with 7kW of power, the miner(s) will generate too much heat ? In the worst case, I could turn off the miner(s) 2 months a year (from 86.000°F to 95.000°F at most in the summer).

I'm looking to your build but the DB level is still the main issue. I'm really looking the most silent setup, even at the cost at some efficiency (but still enough to be the most profitable).

Thank you again !

The noise restriction means fans at 3000 rpm they are not silent. But they are far far far lower sound than full speed at 5500 rpm.

7kwatts  could mean  you will have a lot of heat issues.

I did a build with the t21 but a t21 will cost 3x that of a s19 maybe 4x

https://bitcointalksearch.org/topic/my-single-phase-235-volt-t21-5491800.

you would like this more but it cost way way way more money  I run it at low speed for now as it is warm where I am.