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Michael Schmid ⚡️ Profile picture
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May 31 • 3 tweets • 3 min read
#BitcoinWaterHeater
- Replace a water heater with heat of miners
- Proofing that a this uses the exact same energy as a normal water heater (or with minimal losses)
- Documenting as much as possible (Data, Videos, Parts)
- Open Source every code written
- Get paid to shower 💰🚿 Image
Open Source Contribution:
@home_assistant Integration with @braiins_systems Braiins OS+ to control miner from Home Assistant. Also allows usage in non-immersion systems.
- Repo: github.com/Schnitzel/hass…
- Blogpost: braiins.com/blog/controlli…
- Video:
Support and Donations (in #Bitcoin of course), plus current project status can be found here donations.schnitzel.world

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More from @Schnitzel

Michael Schmid ⚡️ Profile picture
May 29
#bitcoinwaterheater update: Back on track!
After a bit a downer thinking that Miner uses 2x energy, I'm happy to report that indeed most of the loss was towards heating the room and not a flaw of the system itself. 💪 TLDR: We're 69% as efficient and that's without any insulation
After talking to other home miners (big thanks to @Adrian_van_Wijk) its clear that the key is to insulate everything as good as possible. Plus also reduce the amount of bitcool that is used as much as possible, as it has to be reheated first before it can heat the water.
Here the actual data:
24h sampling, used 34.7l during shower, did two heat cycles, plus heating right after the shower. Total 6.71kWh. The electrical water heater used 4.66kWh also for 24h, this makes an efficiency of 69%. Now again, this is only a single day, need more data ImageImage
Read 4 tweets
Michael Schmid ⚡️ Profile picture
Mar 5
#bitcoin Miner #Airstream heater build 🧵
Of course main question is: why even bother?
1. Heaters in RVs are propane based and can be a bit finicky (not work at all)
2. They are even on or off, creating temperature swings 3. If you are out of propane you are out of heat.
1/16
Using a #bitcoin miner gives a more constant heat (with Braiins we can control the exhaust temperature), plus it runs on electricity which at most RV Parks is included in the rent of the space (therefore "free" heating). So how it is built? 2/16
It's an Antminer S9 with a 12V squirrel fan (much less noise than the normal fans) in a plastic box. It sucks air through a dryer vent into the box and pushes the air out via the miner, through a hole in the box into the Airstream. 3/16
Read 16 tweets

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