The Bitcoin Infinity Show How Bitcoin Mining will Save The World | Maximilian Obwexer | Bitcoin Infinity Show #162
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Aug 5, 2025 Maximilian Obwexer, Co-founder and CEO of 21 Energy, talks about an innovative approach to Bitcoin mining that leverages heat reuse in European grids. He discusses how Bitcoin miners can double as home heating appliances, providing economic and environmental benefits, especially in colder climates. The conversation also touches on the growing adoption of Bitcoin in German-speaking regions, future trends in the mining market, and the sustainability of using renewable energy for decentralized heating solutions.
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From Living Room Miner To Product
- Maximilian Obwexer started heating his Alpine home by running a Bitcoin miner in his living room and saved €4,000 versus heating oil.
- He also estimates a 10-ton CO2 reduction from that first experiment, which inspired 21 Energy.
Bitcoin Mining Converts Electricity To Useful Heat
- Every watt put into a Bitcoin miner becomes heat with near 100% conversion, so mining can double as efficient heating.
- The device both generates heat and produces hashes that earn Bitcoin, offsetting electricity costs.
Quiet Heating By Changing Cooling Design
- Use larger heat sinks and bigger, slower fans to turn loud ASIC miners into quiet, usable heaters.
- Slower fan rpm and more surface area reduce noise dramatically while moving the same heat into the room.