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Discussion
Is having a miner worth it?
Not financially with an S9, but the learning experience and small independence, yes 🤙
Ok that’s why I’m interested and the whole heater concept
This is a great vid explaining how and why
Thank you!
I’m struggling to see that it’s worth it even as a heater, but still potentially a good side project. To me it looks like a heater build will cost about $300 (a super quiet fan costs like $120) and kick off about 90 cents a day if you were running it 24 hrs. Ignoring price changes and upcoming halvings more efficient miners will keep coming online so it probably won’t get much better. Tough to see a way to break even - though it is possible with crazy price swings.
Lots of good info. Thanks for sharing. My experience is exchanging for #bitcoin is more cost effective
I think so. I may still take the plunge as a fun side project! Good info on parts here… you’ll see the fan is where things really get sideways nostr:note19xw0p3frh96z80kgccu8cw0nlfxj4ld7nwleufvnl45vam6n3wcsqh6gey
If you're looking atbpure cost effectiveness, yes you're better off just buying on exchange or whatever.
Mining your own bitcoin is a learning experience, provides mon kyc bitcoin, and gives you a tiny bit more sovereignty
You have to look at opportunity cost not go for break even. Unless you have solar you'll never get "free heat" from mining. Look at it this way, you probably have to heat your home no matter what. If you have a space heater running at 1400 watts, the s9 is economic, regardless of halving or anything else as it can also be set to consume the same 1400 watts but provide a bitcoin subsidy. From my experience, 800 watts is more than enough for a normal sized room. That cuts your electric cost vs your 1400 watt heater in half (ish).
If you are comparing efficiency of the miner versus central heat... I guess that could depend.
But also a fan does not cost 120... that's overkill by a long margin. You can get top of the line noctua or bequiet fans for like 20-30 each.
Yes I actually came back to say I totally left out any reduction in heating costs! That will close the gap quite a bit. I doubt it will fully close it with a single space heater in my region, but it certainly makes it a lot closer.
If you're in a studio definitely. I think an s9 is capable of heating a medium-large size room no problem all on its own without supplemental heat. The only tradeoff is how much noise you willing to put up with. I think its relatively equivalent in potential heat output as this larger retail heater I have - and this heater is no slouch. It can heat a large 25 x 30 room with no supplemental heat in the dead of winter.
In terms of the fan, I have seen the noctua option, but my understanding is that those aren’t as quiet as you might want for a bedroom unless you are underclocking. I think the $120 fan would let you run the heater at a higher capacity with lower volume. Maybe that is over-kill though.
Do you know a good place to see some example builds people have done for single room heaters?
Here is my unit running at 800 watts without a case. A decent case (esp if you line it with foam or sound deadening material) will be even quieter. The volume is good for an office during the day (13 x 14 ish room) but still too loud for the bedroom. Haven't run it in dead of winter yet but I can probably underclock it to 500 where it's a whisper and still be sufficient for this size room.
I put 120mm fans and that helps significantly. The fans here are stock NZXT fans that came off of one of their aio radiators. I have another with Noctuas and that runs even queter. Larger fans can move the same volume of air at lower RPMs.
The biggest bang for buck upgrade is the tiny 60mm fan on the psu. The stock one is incredibly loud. I'm using noctua NF-A6x25 FLX fans for the psu. If you could only do ONE upgrade and volume was your priority, this is the fan I'd upgrade first.
Thanks. I’m gonna order an S9! Can you share which noctua fan models you ordered to replace the non-PSU fans? Also have you ever experimented with a 3D printed silencer like this? I may try and report back.
https://www.etsy.com/listing/973407348/antminer-s9l3-fan-noise-reduction?ref=share_v4_lx
Oh interesting. I might try printing something like that. I'd imagine something like that will disrupt airflow though. You might want to test efficiency of that vs simply turning the wattage down. Would be neat to see a chart with temp, volume, and wattage!
For the Noctua 120mm, youll need to 3d print an adaptor (check ceypto cloaks), I am running the NF-A14 IndustrialPPC 3000 PWM version. There's several flavors of the NF-A14. The normal case fans will probably be quietest but I think they max out around 1800 rpm. There are two industrial versions that max at 2k vs 3k rpm. Generally, volume is directly proportional to RPMs. At 800 watts my fans typically spin around 1800 rpm. I went with the 3k version for longevity amd to give myself headroom if I wanted to run at higher wattage at some point
For the power supply I'm using NF-A6x25 noctua fans which I highly recommend.
Also check crypto cloaks guide. It's very good and was what I primarily followed.
Interesting - didn’t know there was an adapter needed. I thought the fans just had to be modified by clipping some plastic. I’ll have to check out their guide in more detail. Thanks!
Yeah the standard fans are 90mm. I suggest going with 120mm. I don't see any way to connect them up properly without an adapter. The holes don't line up otherwise.
Hey sorry quick correction to all this... The stock fans are 120mm amd the noctuas I put on are 140. Go with the 140 + adapter. Moves more air at lower rpm/noise.
Braiins is my favorite
Very nice set up.
Braiins Pool