Heatbit has launched Bitwater, a water heater that also mines Bitcoin, generating heat for water while potentially earning through mining.
Heatbit, an American firm, unveiled its latest product, Bitwater, which combines a water heater element with an ASIC miner. The device harnesses the heat generated during Bitcoin mining to warm water.
Introducing Bitwater: the water heater element that mines Bitcoin. It screws into the electric tank you already have. Physically decentralized mining that runs no matter what. Heat water. Mine Bitcoin. Same tank.
— Heatbit (@heatbit_com) October 22, 2026
Designed to replace the lower heating element in electric water tanks, Bitwater requires no tank replacement, leaving the upper element operational for periods of high hot water demand. The device is compatible with 30-80 gallon tanks available in the U.S. and Canada.
Equipped with 20 BM1370 chips, Bitwater boasts a hashrate of 34 TH/s and energy efficiency starting at 12 J/TH, consuming up to 600 watts of power. The water heated by the chips serves to cool them simultaneously.
Initially, the device operates in solo mining mode through Heatbit's pool, allowing the owner to retain the entire block reward. Users can switch to the Luxor pool or other platforms via an app.
The first batch of Bitwater units is priced at $899, with subsequent models retailing for up to $1,299. Pre-orders commenced on October 22, with deliveries scheduled for the first quarter of 2027.
Community Skepticism Over Profitability
Reactions to Bitwater have been mixed. On Reddit, some users praised the innovative combination of water heating and Bitcoin mining, while others questioned its cost-effectiveness and uncertain ROI.
“The idea is interesting, but has anyone calculated the profitability? Isn’t it better to just buy Bitcoin for $900?” inquired a user known as PoisonWaffle3.
Concerns have also been raised about Bitwater's power consumption of 600 watts compared to a standard heating element's 4500 watts, potentially leading to slower heating times.
Heatbit asserts that the device operates continuously, transferring a daily amount of heat equivalent to typical household usage. They claim that mining won't increase electricity costs, as energy would be used for heating regardless. However, they noted that earnings depend on network difficulty and Bitcoin prices.
Not the First of Its Kind
Since its founding in 2020, Heatbit has previously released heaters and air purifiers with mining capabilities. In January 2026, Superheat introduced a similar product, the H1 water heater, featuring Bitcoin mining chips and estimated to reduce energy and water costs by 80%.
Additionally, Canaan launched the Avalon Mini 3 and Nano 3S home Bitcoin miners in January 2025, while the Ukrainian project Hotmine developed a boiler with BitFury chips back in 2016, which also provided heat for water and space heating.
