Delaware-based startup Heatbit has introduced Bitwater, a residential heating element designed to replace standard coils in existing electric water tanks. The device performs SHA-256 hashing to mine Bitcoin while simultaneously heating water, utilizing the heat generated by the computation process.
The hardware offers a hashing power of up to 34 TH/s with an efficiency rating of 12 J/TH. According to the company, the device operates quietly because it is cooled by the water it heats, eliminating the need for traditional cooling fans.
Bitwater supports two operational modes: pooled mining, which distributes rewards in satoshis, and a solo lottery mode for attempting to mine full blocks. Preorders for the unit opened on October 22, 2026, with initial shipments scheduled for the first quarter of 2027.
Founded in 2020 by Alex Busarov, Heatbit has secured $250,000 in funding from investors including Stillmark and Axiom BTC. The company suggests that widespread adoption of its technology could potentially increase the global Bitcoin hashrate by 285%.
