Heatbit’s water heater should make mining bitcoin useful at home

A mining element for tanks

Heatbit, a Delaware-based company founded around 2020 by Alex Busarov, is extending its mining-heater concept beyond space heaters and air purifiers. Its new product, Bitwater, is designed to replace the heating element in an electric water tank.

The company says the unit swaps a standard element’s resistance wire for twenty Bitmain BM1370 chips. It advertises output of up to 34 terahashes per second, power use of up to 600 watts, and mining efficiency starting at 12 joules per terahash. Water in the tank cools the chips, so the device does not need noisy fans.

Fit, features, and availability

Heatbit says Bitwater works with most 30- to 80-gallon electric tanks in the United States and Canada that have a compatible one-inch screw-in port. Listed manufacturers include A. O. Smith, Rheem, Bradford White, Whirlpool, and GE.

The savings question remains

Both resistance elements and mining chips turn nearly all the electricity they consume into heat. But overall savings also depend on hot-water demand, settings, uptime, electricity prices, hardware lifespan, the alternative heater, and bitcoin-mining conditions.

Upfront cost and mining income

A conventional replacement element usually costs less than $30, leaving Bitwater roughly $870 more expensive. Heatbit has not issued its own earnings forecast; it shared a Grok estimate of about $1 to $1.25 per day. At 80% uptime, that would amount to roughly $292 to $365 in annual gross revenue, based on a temporary hashprice snapshot.

That estimate could imply recovery of the $899 price in around three years, but it assumes mining revenue remains steady. Bitcoin network difficulty, market conditions, and block rewards can change. Conventional water-heater elements commonly last six to ten years, and Bitwater’s financial return over a similar period is not yet clear.