Ofen

€990,00
800 W
Leistung
32 m²
Heizfläche
35 dB
Geräuschpegel
bis zu 10 TH/s
Mining Leistung
€ 0,033 / kWh
Bitcoin Einnahmen
(Ø 1 Jahr)*
€ 0,070 / kWh
Bitcoin Einnahmen
(Ø 4 Jahre)*
52 × 35 cm
Größe
22 kg
Gewicht
*Stand 02.2025

Spare bis zu 10% mit unseren Bundles

990,00 €
inkl. MwSt. & Versand
Du sparst 0,00 €
In den Warenkorb legen
Kostenloser Versand
30-Tage-Rückgaberecht
Hergestellt in Österreich
Visa
Mastercard
Maestro
American Express
Klarna
EPS
Du möchtest mehr Bitcoin Cashback?
Sieh dir unseren Ofen Pro mit €0,263 Cashback / kWh an.
Bestseller
Ofen Pro kaufen

Der 21energy Ofen ist perfekt für dich, wenn du dein Zuhause heizen und gleichzeitig Bitcoin verdienen möchtest. Stell dir vor, du hast eine Heizung, die nicht nur deine Wohnung warm hält, sondern dir auch noch zusätzliches Einkommen verschafft. Der Ofen bietet eine Heizleistung von bis zu 800 Watt und kann Räume bis zu 32 m² beheizen. Dabei arbeitet er extrem leise mit weniger als 35 dB.

Power & ease of use

Heating technology & volume

Design & mining power

Protection & durability

Mining pool

Operating system

Savings potential

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Hol dir das Upgrade mit Ofen 2

Mehr Wärme, mehr Bitcoin und keine Kompromisse.
Ofen 2 Front

Ofen 2

Neu
1.000 W
Leistung*
50 m²
Heizfläche
32 dB
Geräuschpegel
bis zu 35 TH/s
Mining Leistung*
€ 0,08 / kWh
Bitcoin Einnahmen
(Ø 1 Jahr)**
€ 0,18 / kWh
Bitcoin Einnahmen
(Ø 4 Jahre)**
90 x 32 x 14 cm
Größe
24 kg
Gewicht
* ± 10%
** Stand 06.2025
€1.590,00
inkl. MwSt. & Versand
Jetzt vorbestellen
Kostenloser Versand
30-Tage-Rückgaberecht
Hergestellt in Österreich

Lieferumfang

Ofen

800 W

Netzkabel

1 m

Bedienungsanleitung

Anleitung für einen schnellen Start

Berechne deine jährliche Einsparung an Heizkosten

Produkt auswählen
Ofen Pro
Ofen
Stromkosten (/kWh)
-
0,20
+
97
Variable Strompreise
PV-Anlage
Wärmepumpe
Wärmepumpe
- € 825
/ Jahr
Gas & Öl
Gas & Öl
- € 2.556
/ Jahr
Strom
Strom
- € 3.300
/ Jahr
Bitcoin-Heizung
Bitcoin-Heizung
- € 3.300
/ Jahr
+ € 1.158
/ Jahr
Durchschnittliche Heizkosteneinsparung pro Jahr. *
€ 86
bis zu 7 Tonnen CO₂ pro Jahr einsparen
Im Detail berechnen
* Die Heizkosteneinsparungen wurden durch einen Vergleich mit den durchschnittlichen Heizkosten aller Heizungsanlagen ermittelt.

Intelligent heizen. Mehr verdienen.

Heizfläche

Beheize Räume bis zu 32 m² mit einem einzigen Gerät

Cashback

Cashback von bis zu € 0,070 / kWh

Flüsterleise

Flüsterleise 35 dB (so leise wie ein Kühlschrank)

Nachhaltig

Spart bis zu 3× so viel CO₂ wie ein Elektroauto

Mining Leistung

Bis zu 10 TH/s Hash-Rate für effizientes Bitcoin-Mining

Variable Stromkosten

Optimiere den Energieverbrauch und senke deine Kosten mithilfe von variablen Strompreisen
21energy Ofen Explosion Rendering
Jetzt kaufen
Kostenloser Versand
30-Tage-Rückgaberecht
Hergestellt in Österreich

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Verpasse keine Neuerscheinungen, Sonderangebote und Neuigkeiten über 21energy.

Questions & Answers

Shipping

When will my products be delivered?

We typically ship all products within 2-3 business days. Following that, your order will reach you within a few business days, depending on the delivery location. Any pre-orders or delays will be indicated in the description or in a separate message.

In which countries does 21energy ship to?

Currently, we ship to the EU, Switzerland, Norway, Great Britain, US & Canada. If you want to find out if we deliver to your address, you can easily test this in the checkout process by entering your address there.

What are the shipping costs for me?

The shipping costs vary depending on the delivery location. To calculate your personal shipping costs, you can go through the checkout process. After entering the delivery address, the costs will be displayed to you.
All orders over 200€ qualify for free shipping!

Are there any additional costs for customs or taxes?

For all customers within the EU, there are no additional costs due to taxes and customs. All customers outside the EU pay only the net price in the store when ordering. Therefore, taxes and duties will be incurred upon import and are to be paid there.

Can I cancel my order?

Yes, every customer has a 30-day right of withdrawal. Within this period, you can cancel your order without providing any reasons. The paid amount will be refunded to you via the originally selected payment method.

Income

How do the 21energy heaters and computers (mining devices) make money?

21energy heaters and computers (mining devices) generate revenue through the process of Bitcoin mining, wherein specialized hardware solves cryptographic puzzles to validate and secure transactions on the blockchain network. As a reward for their computational work, miners receive newly minted bitcoins and transaction fees.

How much can I earn from heating with the heaters or other mining devices?

Your mining earnings depend on various factors such as the price of Bitcoin, market rates for computations, global hashing power, duration of operation, and hardware model. For your individual situation, we have developed a profitability calculator. The significant distinction from any other electric heater is that cash flow is generated while heating.

Performance

Do the different products require more electricity than traditional heaters?

No, these products do not require more electricity than traditional heaters. They efficiently convert 100% of the electrical energy into heat, simultaneously utilizing it to mine Bitcoin, effectively leveraging energy in a dual capacity.

Does my electricity bill change with 21energy products?

If the same heating method (electric heating) with the same heat demand is applied as before, the electricity bill usually does not change, as the entire electrical energy continues to be converted into heat.

Can the heating power be adjusted on the individual devices?

The heating power can usually be adjusted continuously within a specific range on all of our devices.

How much heating area do 21energy products cover?

The heating area of each heater is specified in the product descriptions, which may vary significantly depending on their characteristics. For all individual hardware devices, the heating area can be determined using various calculators available online, based on the specified power output.

Are the products allowed to be overclocked to achieve maximum yield?

Our heaters are only allowed to be operated at the maximum power specified in the description and/or user manual. Overclocking poses a high risk and will void the warranty immediately. Similarly, each individual Bitcoin mining device should only be operated at its maximum standard power.

Safety & Warranty

Are the devices designed for maximum safety and CE compliant?

All products sold have been tested according to the highest and latest safety standards and are CE compliant.

Are safety mechanisms installed in the various devices to prevent overheating?

All our heaters are equipped with a special operating system designed to prevent overheating by shutting down the device beforehand.

Can 21energy products be operated around children?

Yes, our products are designed for use in residential spaces like traditional homes. They are conventional electrical appliances. Therefore, the usual precautions for children apply.

Is there a warranty on 21energy heaters and other products?

Provided that the safety precautions outlined in the user manual are followed, our heaters come with a 12-month warranty. This also applies to all of our newly and originally packaged Bitcoin miners.

Business

I would like to partner with you. What options are available? Is it possible to collaborate with 21energy as a distribution partner?

Please feel free to submit an inquiry through our contact form on the website. Please provide all necessary information so that we can process your request as efficiently as possible.

Are there special pricing tiers for larger quantities?

Yes, we have specific pricing tiers for certain products starting from a certain quantity. Please feel free to send us an inquiry through our contact form for more information.

Is it possible to invest in 21energy?

Please feel free to email us at office@21energy.com and we will get back to you.

Are there any open positions at 21energy currently?

Please have a look at our open positions.

Still looking for an answer?

Get support

Gut für die Umwelt

Durch den Betrieb des Ofen können im Vergleich zu herkömmlichen Heizgeräten bis zu 3 Tonnen CO₂ pro Jahr eingespart werden, was die Umweltfreundlichkeit des Geräts unterstreicht. Darüber hinaus ist der Ofen CE-konform und erfüllt die höchsten Sicherheitsstandards.

bis zu 3 Tonnen CO₂ pro Jahr einsparen

Erfahre mehr über Bitcoin-Heating

Finde heraus, wie unsere innovativen Bitcoin-Heizungen dir helfen, effizienter zu heizen und dabei Geld zu sparen.

Bekannt aus

21energy App Mockup

Einrichtung in 3 Minuten über die App.

Download the app on the App Store Download the app on Google Play

Unsere neuen Funktionen

Gute Nachrichten: Alle bereits gekauften Geräte sind voll kompatibel – die neuen Features kommen bequem per Software-Update auf dein Smartphone.

21energy App Feature Variable Electricity Price
Bald verfügbar
Funktion 1

Variable Strompreise

Nutze deinen Bitcoin Heater effizienter als je zuvor! Automatisiere die Nutzung bei günstigen Strompreisen und spare bares Geld – smarter heizen war noch nie so einfach.

21energy App Feature Home Assistant Integration
Bald verfügbar
Funktion 2

Home Assistant Integration

Perfekt vernetzt: Steuere deinen Bitcoin Heater direkt über dein Smart Home. Nahtlose Integration für maximalen Komfort und volle Kontrolle.

21energy App Feature Bluetooth Thermostat
Bald verfügbar
Funktion 3

Bluetooth Thermostat

Präzise Temperatur, optimale Leistung: Mit dem Bluetooth-Sensor passt sich dein Bitcoin Heater flexibel an dein Zuhause an – für noch mehr Effizienz.