Startup Show Supersale!
21energy on the 2 Minuten 2 Millionen show! Live on March 11th on Puls 4 and Joyn at 8:15 PM. Get an exclusive -21% discount now — Sale ends in 3d 04h 23m 13s
Free shipping
30-day-return
Made in Austria
Get a Bitcoin Heater
Ofen
800 W
Power
32 m²
Area heated
35 dB
Noise level
up to 10 TH/s
Mining power
€ 0.033 / kWh
Bitcoin reward
(1-year average)*
(1-year average)*
€ 0.070 / kWh
Bitcoin reward
(4-year average)*
(4-year average)*
52 × 35 cm
Size
22 kg
Weight
€782,10
-21%
€990,00
incl. VAT & shipping

Ofen Pro
Bestseller
1,100 W
Power
44 m²
Area heated
35 dB
Noise level
up to 40 TH/s
Mining power
€ 0.122 / kWh
Bitcoin reward
(1-year average)*
(1-year average)*
€ 0.263 / kWh
Bitcoin reward
(4-year average)*
(4-year average)*
58 × 38 cm
Size
35 kg
Weight
€2.741,30
-21%
€3.470,00
incl. VAT & shipping
Free shipping
30-day-return
Made in Austria
*As at 02.2025
Calculate your annual heating savings
Select product:
Ofen Pro
Ofen
Country
Electr. costs (€/kWh)
-
0.20
+
Area heated
97 m²
Variable electricity price
PV system
Average heating cost savings per year. *
€ 3,269
save up to 7 tons of CO₂ / year
* The heating cost savings were determined by comparing them with the average heating costs of all heating systems.
Dive into the specifics
Discover our innovative Bitcoin heaters and find out how it helps you to heat more efficiently and save money.