21Energy Ofen (Space Heater)

Ships immediately (without App Control) / Shipping April 2025 (with App Control)

The 21energy Ofen is perfect for you if you want to heat your home and earn Bitcoin at the same time. Imagine having a heater that not only keeps your home warm, but also provides you with additional income. The Ofen offers a heat output of up to 800 watts and can heat rooms up to 32 m². It works extremely quietly at less than 35 dB.

Power & ease of use
The Ofen from 21energy offers a heating output of up to 800 watts and enables uncomplicated plug & play commissioning for particularly easy handling. This combination of performance and user-friendliness enables effortless use and optimum heat supply. Simple connection via WLAN and initial configuration takes just a few minutes. With the supplied operating instructions and a video tutorial, installation is very easy and child's play even for non-technical users.

Heating technology & volume
Thanks to the innovative combination of convection and radiation, the heater provides even heat distribution. Even at its high output, the Ofen remains extremely quiet and ensures quiet operation with less than 35 dB at 500 watts, creating a pleasant room climate.

Design & mining power
The striking octagon design made of high-quality, black matt-coated steel not only gives the heater an aesthetic appearance, but also ensures robustness and durability. With a mining power of up to 10 TH/s and an efficiency of up to 75 J/TH, the Ofen offers impressive performance.

Protection & durability
The air and dust filters of the Ofen provide effective protection against dirt deposits in the device, protecting the internal hardware and extending the service life of the heater. The galvanized sheet metal ensures durability and corrosion resistance, ensuring reliable use of the heater in a wide range of conditions.

Mining pool
The built-in Antminer S9 is compatible with various mining pools and can also be used for solo mining.

Operating system
The Ofen comes with the Braiins OS+ operating system, which offers automatic optimization and increases efficiency by up to 30%. This auto-tuning function enables improved cash flow and a higher hashrate of up to 30% with the same power consumption.

Savings potential
The savings potential of the Ofen depends on individual energy costs and Bitcoin mining profitability. Calculate your individual heating cost savings now with our profitability calculator.

In the box
Ofen - 800W
Power Cord - 1m
Manual - Quickstart Guide