21energy Customer Reviews
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About 21energy
21energy is an Austrian Bitcoin hardware company that designs and sells Bitcoin heaters and professional mining equipment. Its products combine space heating with integrated Bitcoin mining, and the company says its Bitcoin heaters are made in Austria and used by customers in 30+ countries.
Last updated: June 13, 2026
Company Details
- Website: https://21energy.com/
- Founded: Est. 2022
- Headquarters: Innsbruck, Austria
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