There’s additionally a deadline constructed into that calculation. Bitcoin’s subsequent halving, which is anticipated in spring 2028, will minimize the quantity of recent bitcoin awarded to miners in half. That would occur properly earlier than owners get well the price of their heating programs, doubtlessly throwing a wrench within the pitch for the Bitcoin Boiler.
SunBit, which delivered its first manufacturing batch of Bitcoin Boilers in 2025, now has 30 programs operating, founder and CEO Elmeri Suomi advised CoinDesk this week. All however one are in Finland, and between them they’ve changed or reduce on fuel, oil, wooden and district heating.
At a business property in Lekkum, within the Netherlands, SunBit’s first export venture in 2025, a miner changed fuel heating. In Kotka, a port metropolis of about 50,000 on Finland’s southeast coast, a 200-square-meter home runs one alongside its present oil boiler as a hybrid system.
At an outdated manor home in Tampere, Finland’s third-largest metropolis, mining changed wooden heating, and the miner retains a 1,500-liter water tank at 50°C to 60°C. A 3,000-square-meter industrial corridor in Vimpeli runs one alongside an air-to-water warmth pump, and it soaks up surplus energy from a 30-kilowatt photo voltaic array.
Finland is already the testbed for heating with mining. MARA’s programs feed waste warmth from its miners into district heating networks in Satakunta and Seinäjoki, warming about 80,000 residents.
