Heatbit Opens Refundable $899 Preorders for Bitcoin (BTC) Mining Heater

Heatbit began taking refundable $899 preorders Thursday, Oct. 22, for Bitwater, a screw-in element designed to mine Bitcoin (BTC) and reuse chip heat to warm an existing electric tank. The Genesis batch costs $899, while later batches are listed at up to $1,299. Preorders are refundable. Heatbit plans to begin shipping units in the first quarter of 2027. The retrofit is intended for existing electric storage tanks holding 30 to 80 gallons and equipped with a standard 1-inch screw-in port. It replaces the lower heating element, leaving the upper element and thermostat in place.