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**Bitcoin mining hot water heater pays for it's own upgrades while slow cooking Italian style lamb sandwiches!**
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This hot water heater has been running for 6 months, keeping the water hot, mining bitcoin and cooking food. After only 3 months, it mined enough Bitcoin to pay for an upgraded heat exchanger allowing for higher sustained hashrate.
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I've not been getting very creative with the sous-vide style cooking, but my favorite dish so far has been Italian "beef" style sandwiches with lamb neck. It seems like the longer it cooks the more flavorful it gets!
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Overall, I'm shocked at how effective and efficient the Bitcoin mining hot water heater has been. It was so simple to convert the existing hot water heater without any major modifications (unlike my clothes dryer). Using canola oil as the dielectric fluid gives me a lot more confidence to use the contraption for cooking too. So far there is no indication of degradation of the canola oil after 6 months of continuous use! #permaculture #permies #homesteading #meshtadel #bitcoin #bitcoinmining #plebminer #foodstr #doublespendenergy #seedoil #DIYorGFY
rev.hodl's avatar rev.hodl
Cooking hash-vide style rabbit ramen with Bitcoin mining hot water heater
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The second meal cooked in the Bitcoin mining hot water heater is rabbit ramen soup. Rabbit grown and harvested right here at the homestead, along with these other ingredients from the homestead rabbit stock, garlic, and finally golden oyster mushrooms dehydrated with a Bitcoin miner. Soy sauce, rice vinegar, lemon, sesame oil, Japanese seven spice, salt, pepper, butter.
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All ingredients went into a silicone bag and submerged in the hot canola oil tank of the bitcoin mining hot water heater for 3 days. Hard to beat mining Bitcoin, heating water, and cooking food all at the same time. I can get the water up to 150f out of the tap with only 1500w of power consumption for the total system, miner, pumps, and all!
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Another super cool aspect of this mining setup is that it runs on 110v power instead of 220v. Not having access to a 220v circuit is often a limiting factor for pleb miners, especially when these sorts of applications don't always require so much power. By modifying the apw12 PSU and making a custom power cord, now I can plug the miner into an existing 110v circuit. It cost less than $20 to do the modification on the PSU plus using a modified apw12 vs a Loki + apw3++ allows for voltage attenuation and higher total power output.
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#permaculture #permies #homesteading #meshtadel #bitcoin #bitcoinmining #plebminer #homeminer #sousvide #rabbit #ramen #foodstr #stackingfunctions #doublespendenergy View quoted note →
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Replies (10)

This is pretty neat. I’ve been brainstorming ways to use the “waste” heat from miners in useful way to get different folks/companies on board with powering them. Food courts usually have heated water underneath their food trays, hotels/motels may have their water heaters in fairly constant use, and laundromats of course. Would love if you did a video going over your set up.
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↩ replying to rev.hodl
I'm watching this space carefully too. Every heating project I look at one of the bigger challenges is finding a way to hit my desired BTU output. Right now your easily available options are 30w from a bitaxe then nothing until 600w from a single s19 board. S9 boards are 100w to 500w a piece but their TH output is so low you'll never cover costs so they are only good for prototypes and proof of concepts. Stuff like the nerdqaxe++ and other open source multi chip hashboards that fill that W gap at a modern w/th are needed to go wider with using mining waste heat.