Heatbit unveils Bitwater Bitcoin miner for electric water heaters

Heatbit has unveiled its Bitwater heating element for tank-based electric water heaters that not only heats household water but also mines Bitcoin throughout the day. The heating element is designed as a DIY drop-in replacement for an existing unit.

The Bitwater is designed to mine Bitcoin at up to 34 TH/s (terahashes per second) without increasing the electricity bill while generating up to 600 watts of heat continuously from 20 BM1370 ASIC chips. As long as it has a Wi-Fi connection, the miner can generate roughly a dollar a day, while mining solo on the Heatbit pool (although it can be switched to other pools).

This is much lower than the 4500 watts of an ordinary heating element commonly found in 240-volt, dual-element tanks. The lower operating temperature reduces limescale build-up. To prevent corrosion that leads to element failure, the Bitwater is constructed with a titanium rod for its anode.

The Heatbit Bitwater is compatible with 30 to 80 gallon water heaters sold in the US and Canada that use a 1-inch NPSM screw-in element port, including models from A. O. Smith, Bradford White, GE, Kenmore, Rheem, Richmond, State, and Whirlpool. The parts of the miner that touch the water are lead-free to NSF/ANSI/CAN 372 and compliant with the US Safe Drinking Water Act.

The Heatbit is priced at $899 for the initial Genesis batch, which is scheduled for shipment in the first quarter of 2027. Subsequent orders will be priced at $1,299.

Readers who only want to try their luck at Bitcoin mining can run miners (like this one sold on Amazon) that use a single BM1370 ASIC chip.

David Chien - Tech Writer - 1148 articles published on Notebookcheck since 2023

Having worked at Activision, UCLA, Anime Expo and more, I've seen technology being used to save lives, create games, and create fantastic 3D VR/AR worlds. There's always something fun in emerging technology that I want to get my hands on and all my friends turn to me to find the best for their needs, so I'm glad to bring my experience to Notebookcheck.