This startup wants you to throw out your electric water heater and start showering with water heated by a home Bitcoin mining server.
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The startup is called Superheat, and it unveiled this solution at CES 2026.
The concept is straightforward: ASIC servers used for Bitcoin mining consume enormous amounts of electricity and generate substantial heat — and there's no reason to waste that heat instead of putting it to use.
The monetary value of the Bitcoin mined in the process makes the cost of heating water significantly lower, even when the mining itself isn't profitable enough to justify the investment on its own.
While this is a clever gimmick rather than a solution we'll all have at home anytime soon, the shift in thinking it represents is both logical and genuinely important.
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The energy consumption of data centers, computers, screens, and the countless electronic devices surrounding us will only continue to rise for the foreseeable future.
These servers and devices devour electricity and convert a significant portion of it into heat that is released into the atmosphere — wasted at best, or driving ever-increasing electricity consumption by cooling systems that absorb it and, in the process, generate even more heat at worst.
Heat is the graveyard of useful energy, and our current approach — burning fuel to generate heat, then burning more fuel to cool that heat back down — is deeply inefficient.
These processes sometimes run simultaneously in the same room: the oven consuming electricity to bake a cake while the air conditioner consumes electricity to cool the room down.
Some data centers today are already built around this principle, routing the enormous heat they emit toward various productive uses.
What's novel about the idea of using a Bitcoin miner to heat water is its focus on the domestic micro-environment — and in the coming years, we may well see more and more solutions of this kind that bring down our overall energy consumption.
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👋 Hi, I'm Shlomo Strauss — follow me for more content on science and technology.