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One system, two jobs

One system heats your whole home and your hot water, driven by a Bitcoin miner instead of oil or gas. Near 100% of the electricity becomes usable heat, and the computing power running alongside it earns you Bitcoin.

Around 7 kW of heat, the primary heat source for a single-family home
Retrofittable into existing tanks, works with radiators and underfloor heating
Austria flag
Engineered and made in Austria, launching Q4 2026

A miner where your burner used to be

1
It heats your storage tank

A hydro-cooled ASIC miner connects to your central storage tank, no oil or gas burner needed.

2
Computing becomes heat

The miner runs Bitcoin computations and turns nearly 100% of the electricity into heat, warming the water in your tank to 70°C and above.

3
Your home heats, you earn

The stored heat feeds your radiators, underfloor heating and hot water, while the computing power earns Bitcoin, paid out daily.

Up to

€3,000

in Bitcoin per year

Based on the average Bitcoin price over the last 4 years and 20,000 kWh of heating per year.

One system, every advantage

70°C+ outlet temperature

Hot enough for radiators, domestic hot water and Legionella-safe operation. No comfort compromise versus oil or gas.

Fits your existing system

Connects to standard storage tanks and water-based heating circuits. No need to replace what already works.

Run it your way

Use it as a standalone primary heating system, or as a smart add-on alongside your existing heat pump, gas or oil boiler.

Around 7 kW of heat

Enough to be the primary heat source for a single-family home.

Whisper quiet

Water-cooled with no fans, no noise. It sits quietly in your heating room.

Same bill, but it earns

Near 100% of the electricity becomes usable heat, the same power bill as any electric heater, except this one also earns.

Smart, automated control

Heats when energy is cheapest, PV surplus and dynamic tariffs, all managed from the app.

Heat and hot water in one

Central heating and domestic hot water from a single system, no separate boiler.

The same heat, except it earns

Bitcoin Cashback

Part of your heating bill comes back to you as Bitcoin. Paid out daily, fully transparent.

Got solar?

Mine with your PV surplus instead of feeding it into the grid, up to 5× the return of a standard feed-in tariff.

Frequently asked questions

What is Bitcoin central heating and how does it work?

A hydro-cooled ASIC miner is connected to your central storage tank instead of an oil or gas burner. It runs Bitcoin computations and turns nearly 100% of the electricity into heat, warming the water that feeds your radiators, underfloor heating and hot water, while the computing earns you Bitcoin.

Can it replace my oil or gas heating, or only run alongside it?

Both. With around 7 kW of output and outlet temperatures of 70 °C and above, it can be the primary heat source for a single-family home. You can also run it as a smart add-on alongside an existing heat pump, gas or oil boiler.

Will it work with my existing tank, radiators and underfloor heating?

Yes. It's retrofittable, it connects to standard storage tanks and water-based heating circuits and works with both radiators and underfloor heating. There's no need to replace what already works.

What does it cost to run?

About the same as any electric heater: near 100% of the electricity becomes usable heat. The difference is that this one also earns, part of your heating bill comes back to you as Bitcoin Cashback, paid out daily and fully transparent.

Do I need solar panels to benefit?

No, it works on any electricity supply. If you do have solar, you can mine with your PV surplus instead of feeding it into the grid, for up to 5× the return of a standard feed-in tariff.

When can I get one?

It's engineered and made in Austria and launches in Q4 2026. Join the waitlist to be first in line and get notified the moment it's available.

Be first in line

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Engineered & made in Austria

The Bitcoin central heating system is engineered and built in Austria by 21energy. Launching Q4 2026, join the waitlist to be first in line.