My first miner with free electricity

[getfreefromfiat]

Hello togehter
as I am invested in krypto for quite some time and now moved to an appartment with electricity included it seems useful to start mining. The thing is the appartment is small (about 50 qm2), so the miner should not be too loud when I am home. I was reading a bit and with braiins OS it should be pretty easy to lower the consumption and heat and noise. My plan is to get a cheap S19 miner for around 600 Euros and then optimize it with fans and OS settings to a lower DB and then just ramp the power up, while I am not at home. Does this make sense, does someone has done similar things and maybe do you have recommendations for fans, silent kits or similar? Would you say for my purpose a S19 miner with 50% power limit would make the most sense?
Thank you for you help in advance.
Best
a happy renter with free power

[BitMaxz]

It's a good idea to make use of free power but I think your problem here, even if you solve the noise, you won't be able to bring the heat out from the room unless the room you rented has a window.

There are lots of silencer for antminer out there. You can try the silencer from ZeusBTC; check the link below

- https://www.zeusbtc.com/ASIC-Miner-Repair/Parts-Tools-Details.asp?ID=1064

I think this silencer doesn't need to change your miner's fan. Based on the video, the noise can be drop more than 25% to 30%.

[philipma1957]

At half lower and half speed fans you will do 100/2= 50th

50th is 50 x .055 = $2.75 a day

So you burn 1500 watts this mean you need cooling i the summer.

So if you speed 600 to buy the miner and 200 to buy the ac you are 800 in the hole.

That means 300,days to breakeven.
My suggestion is find a 350 or 400 euro miner not a 600 euro.


https://www.ebay.co.uk/itm/226830650232?




This one above is around 400 pounds and is good firmware

[getfreefromfiat]

Thx those are some good points. The heat shouldnt be a problem as in summer I can use the appartment AC to cool the room and in winter I could just leave the windows open a bit. Maybe also worth mentioning I am in the german speaking area, the best S19 miner I found so far was for 550 with braiins already installed.

[danieleither]

Unless your landlord is a complete fool, there will be a fair use policy in your tenancy agreement, and that will most certainly preclude the use of a Bitcoin miner running 24/7.

'All bills included' accommodation is quite popular in the UK (known as HMO's), and very often people try to get away with running ASIC miners, however they are typically caught and stopped very quickly.

What you're basically planning to do is exploit your landlord, and it's not cool.

[mikeywith]

'All bills included' accommodation is quite popular in the UK (known as HMO's), and very often people try to get away with running ASIC miners, however they are typically caught and stopped very quickly.

What you're basically planning to do is exploit your landlord, and it's not cool.

I think qm stands for "quadratmeter" aka square meter, which IIRC is a German thing, so I guess he is somewhere in Germany unless he meant to type sqm. Obviously, your logic still applies regardless. Anything beyond a tiny USB miner is going to be spotted by the landlord and what happens next is up to the laws of where he lives. Most importantly, a 50m2 apartment is terribly small -- no mod of any kind is going to let you sleep with an S19 in the same place.

[alexa5529]

Great share! Mining with free electricity is a dream setup. While cutting energy costs, GEPCO consumers in Pakistan can also Check Their GEPCO Bill Online to monitor usage and avoid surprise charges.

[PrivacyBTC]

Free power changes the math completely — congratulations if that really holds.

A few things we tell first-time operators when electricity is ~$0:

1) Heat and noise still cost you. Garage/basement setups cook themselves if intake air is bad. Watch inlet temps, not just the pool dashboard.

2) Uptime matters more than pool choice at zero kWh. Offline hours are pure lost sats. We ended up building Farm Manager for our own multi-site racks for that reason — free tier is enough for a few machines: https://www.hashrate.farm/blog/hashrate-farm-manager-free-asic-monitoring-alerts-and-cloud-control

3) Pool vs solo. With free power, a normal pool is usually the sensible path. Solo is fine if you treat it like a lottery ticket, not a payback plan.

4) Hardware. Don't overbuy on day one. Get one machine hashing cleanly, learn firmware/stratum, then expand.

If you say which model you bought (S19 / S21 / Bitaxe / etc.), people here can give more specific fan/PSU tips.

Disclosure: I run Hashrate.farm (hosting + tools) and MySoloPool — happy to answer ops questions either way.