By Isaac • November 8, 2026 11:32 am •
A Finnish company has put a surprisingly practical twist on Bitcoin mining: use the machines as boilers and send their heat through a building’s radiators.
SunBit now has 30 of those systems operating, according to CoinDesk. All but one are in Finland, where long heating seasons and a largely low-carbon power mix make heat reuse especially practical.
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The installations range from detached homes to a 3,000-square-meter industrial hall, and they have replaced or reduced the use of oil, gas, wood and district heating across multiple Finnish cities.
One 180-square-meter home in Nokia replaced district heating entirely and added a separate domestic hot-water tank. Another 200-square-meter property in Kotka kept its oil boiler as backup, while a
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