Skip to content
Trustpilot
  • English
  • Deutsch
  • Français
  • Norsk
  • Svenska
  • Suomi
  • Albania (ALL L)
  • Andorra (EUR €)
  • Austria (EUR €)
  • Belgium (EUR €)
  • Bosnia & Herzegovina (BAM КМ)
  • Bulgaria (BGN лв.)
  • Croatia (EUR €)
  • Cyprus (EUR €)
  • Czechia (CZK Kč)
  • Denmark (DKK kr.)
  • Estonia (EUR €)
  • Finland (EUR €)
  • France (EUR €)
  • Germany (EUR €)
  • Greece (EUR €)
  • Hungary (HUF Ft)
  • Iceland (ISK kr)
  • Ireland (EUR €)
  • Italy (EUR €)
  • Latvia (EUR €)
  • Liechtenstein (CHF CHF)
  • Lithuania (EUR €)
  • Luxembourg (EUR €)
  • Malta (EUR €)
  • Monaco (EUR €)
  • Montenegro (EUR €)
  • Netherlands (EUR €)
  • Norway (NOK kr)
  • Poland (PLN zł)
  • Portugal (EUR €)
  • Romania (RON Lei)
  • Serbia (RSD РСД)
  • Slovakia (EUR €)
  • Slovenia (EUR €)
  • Spain (EUR €)
  • Sweden (SEK kr)
  • Switzerland (CHF CHF)
  • Ukraine (UAH ₴)
  • United Kingdom (GBP £)
  • Heaters
    • Home Heaters
    • Industrial Heaters
    • Heater Accessories
  • For Bitcoiners
    • Bitcoin Heater
    • Bitcoin Miner
    • Mining Equipment
  • Support
  • About us
  • Business Solutions
  • English
  • Deutsch
  • Français
  • Norsk
  • Svenska
  • Suomi
  • Albania (ALL L)
  • Andorra (EUR €)
  • Austria (EUR €)
  • Belgium (EUR €)
  • Bosnia & Herzegovina (BAM КМ)
  • Bulgaria (BGN лв.)
  • Croatia (EUR €)
  • Cyprus (EUR €)
  • Czechia (CZK Kč)
  • Denmark (DKK kr.)
  • Estonia (EUR €)
  • Finland (EUR €)
  • France (EUR €)
  • Germany (EUR €)
  • Greece (EUR €)
  • Hungary (HUF Ft)
  • Iceland (ISK kr)
  • Ireland (EUR €)
  • Italy (EUR €)
  • Latvia (EUR €)
  • Liechtenstein (CHF CHF)
  • Lithuania (EUR €)
  • Luxembourg (EUR €)
  • Malta (EUR €)
  • Monaco (EUR €)
  • Montenegro (EUR €)
  • Netherlands (EUR €)
  • Norway (NOK kr)
  • Poland (PLN zł)
  • Portugal (EUR €)
  • Romania (RON Lei)
  • Serbia (RSD РСД)
  • Slovakia (EUR €)
  • Slovenia (EUR €)
  • Spain (EUR €)
  • Sweden (SEK kr)
  • Switzerland (CHF CHF)
  • Ukraine (UAH ₴)
  • United Kingdom (GBP £)
Log in
No account yet? Create Account
  • Albania (ALL L)
  • Andorra (EUR €)
  • Austria (EUR €)
  • Belgium (EUR €)
  • Bosnia & Herzegovina (BAM КМ)
  • Bulgaria (BGN лв.)
  • Croatia (EUR €)
  • Cyprus (EUR €)
  • Czechia (CZK Kč)
  • Denmark (DKK kr.)
  • Estonia (EUR €)
  • Finland (EUR €)
  • France (EUR €)
  • Germany (EUR €)
  • Greece (EUR €)
  • Hungary (HUF Ft)
  • Iceland (ISK kr)
  • Ireland (EUR €)
  • Italy (EUR €)
  • Latvia (EUR €)
  • Liechtenstein (CHF CHF)
  • Lithuania (EUR €)
  • Luxembourg (EUR €)
  • Malta (EUR €)
  • Monaco (EUR €)
  • Montenegro (EUR €)
  • Netherlands (EUR €)
  • Norway (NOK kr)
  • Poland (PLN zł)
  • Portugal (EUR €)
  • Romania (RON Lei)
  • Serbia (RSD РСД)
  • Slovakia (EUR €)
  • Slovenia (EUR €)
  • Spain (EUR €)
  • Sweden (SEK kr)
  • Switzerland (CHF CHF)
  • Ukraine (UAH ₴)
  • United Kingdom (GBP £)
  • English
  • Deutsch
  • Français
  • Norsk
  • Svenska
  • Suomi
21energy logo darkgreen
Search
Cart (0)(0)
  • Heaters
    • Home Heaters
    • Industrial Heaters
    • Heater Accessories
    Ofen 2
    Ofen 2 Ofen 2
    Sale Bestseller

    Ofen 2

    €1.650,00
    €2.090,00
    Edge
    edge heater powered by bitcoin edge bitcoin heater fans 21energy
    Sale

    Edge

    €7.670,00
    €9.700,00
  • For Bitcoiners
    • Bitcoin Heater
    • Bitcoin Miner
    • Mining Equipment
    Ofen 2
    Ofen 2 Ofen 2
    Sale Bestseller

    Ofen 2

    €1.650,00
    €2.090,00
    Bitmain Antminer S9
    bitmain antminer s9 bitmain antminer s9
    Sale Bestseller

    Bitmain Antminer S9

    €89,00
    €119,00
    Bitmain Antminer S19j Pro
    Bitmain Antminer S19j Pro Bitmain Antminer S19j Pro
    Bestseller

    Bitmain Antminer S19j Pro

    €720,00
    Bitmain Antminer S19k Pro
    bitmain antminer s19 bitmain antminer s19
    Sale Bestseller

    Bitmain Antminer S19k Pro

    €890,00
    €1.190,00
  • Support
  • About us
  • Business Solutions

Manuals

Ofen 2

User manual Ofen 2 (DE)

Setup-Tutorial Video Ofen 2 (DE)

User manual Ofen 2 (EN)



Ofen

Ofen – without App Control (DE)

Ofen – without App Control (EN)

Ofen – with App Control (DE)

Ofen – with App Control (EN)

Ofen Pro

Ofen Pro (DE)

Ofen Pro (EN)

Antminer

Antminer S9/S9i - 21energy Quick Start Guide (DE)

Antminer S9/S9i - 21energy Quick Start Guide (EN)

Antminer S9 - Bitmain Installation Guide (EN)

Antminer S9 Silent Set-Up-Tutorial Video (DE)

Antminer S19-Serie - Quick Start Guide (DE)

Antminer S19-Series - Quick Start Guide (EN)

Antminer S19-Series - Set-Up-Tutorial Video (DE)

Antminer S19k Pro - Bitmain Product Manual (EN)

Antminer S19 - Bitmain Server Installation Guide (EN)

Antminer S21 - Bitmain Product Manual (EN)

Antminer S21+ - Bitmain Product Manual (EN)

Antminer S21+ - Bitmain User Guide (EN)

Antminer S21 Pro - Bitmain Product Manual (EN)

Antminer S21 Pro - Bitmain User Guide (EN)

Antminer T21 - Bitmain Product Manual (EN)

Edge

Edge (DE)

Edge (EN) [coming soon]

Whatsminer

Whatsminer Overview

Whatsminer M31S Operation Guide

WhatsMiner Hydro Cooling Operation Guide

Braiins

Braiins OS

Braiins Pool

21energy logo white

Sustainable heating

About
  • Profitability Calculator
  • PV-Mining Calculator
  • Blog
  • Careers
  • Press
  • Manuals
About
  • Profitability Calculator
  • PV-Mining Calculator
  • Blog
  • Careers
  • Press
  • Manuals
Legal
  • Refunds & Returns
  • Terms & Conditions
  • Privacy policy
  • Legal Notice
Legal
  • Refunds & Returns
  • Terms & Conditions
  • Privacy policy
  • Legal Notice
Account
  • Create Business Account
  • My Account
Account
  • Create Business Account
  • My Account
  • English
  • Deutsch
  • Français
  • Norsk
  • Svenska
  • Suomi
  • Albania (ALL L)
  • Andorra (EUR €)
  • Austria (EUR €)
  • Belgium (EUR €)
  • Bosnia & Herzegovina (BAM КМ)
  • Bulgaria (BGN лв.)
  • Croatia (EUR €)
  • Cyprus (EUR €)
  • Czechia (CZK Kč)
  • Denmark (DKK kr.)
  • Estonia (EUR €)
  • Finland (EUR €)
  • France (EUR €)
  • Germany (EUR €)
  • Greece (EUR €)
  • Hungary (HUF Ft)
  • Iceland (ISK kr)
  • Ireland (EUR €)
  • Italy (EUR €)
  • Latvia (EUR €)
  • Liechtenstein (CHF CHF)
  • Lithuania (EUR €)
  • Luxembourg (EUR €)
  • Malta (EUR €)
  • Monaco (EUR €)
  • Montenegro (EUR €)
  • Netherlands (EUR €)
  • Norway (NOK kr)
  • Poland (PLN zł)
  • Portugal (EUR €)
  • Romania (RON Lei)
  • Serbia (RSD РСД)
  • Slovakia (EUR €)
  • Slovenia (EUR €)
  • Spain (EUR €)
  • Sweden (SEK kr)
  • Switzerland (CHF CHF)
  • Ukraine (UAH ₴)
  • United Kingdom (GBP £)
Visa
Mastercard
Maestro
American Express
Klarna
EPS
Apple Pay
Google Pay
Bitcoin
© 2025 21energy • Cookie Settings

You've earned 3.5% off!

Welcome! You've been referred by a friend and earned 3.5% off your order with our refer-a-friend program. Start shopping to use your discount!

  • Choosing a selection results in a full page refresh.